Setting Valve Lash Clearances on a Portable Gas Generator

[@alejandroquintero116]

What a nice guy responding to every single comment, thank you and god bless you.

[@lanehuston9035]

One small problem you don't state what the spec is on valve clearance

[@Generatorguru]

That will depend on the engine you have. We publish valve setting under the brand and model on our website. Just see the cylinder head parts page for the full details. Start by finding your generator model on this page: generatorguru.com/ If it is not listed, or is an engine on another type of equipment, please contact our engineers and they will be happy to find it for you. :)

[@chesterpatterson]

7.8 motor

[@skytech95]

A bit off topic, but do you know the expected compression measurement in lbs for the Generac GP6500 model 0059460. I had mine get slightly seized from sitting unused for too long. Just enough to make it impossible to pull the starter rope. I poured some oil into the sparkplug hole and used a breaker bar on the flywheel nut to gently rotate crank back and forth and it promptly freed up. After running it for 10 min or so to clear out the oil I measured compression at only 40 lbs. Seems really low but unit runs smoothly with and without a load. Thoughts?

[@engineeringdept.generatorg1760]

Hi there For fault finding or technical advice, feel free to contact us using the link below www.generatorguru.com/need-help/ This will allow our engineers to review your query and give you the best possible advice!

[@eddierobles3129]

DECOMPRESSION SYSTEM

[@skytech95]

@@eddierobles3129 Not sure what you mean by that comment.

[@atlanciaza]

No, its only americans that work in freedom units, ask me in metric, and I'll tell you.

[@kkc3009]

Okey burt Whert is the intake/exhaust clearance for a Briggs 2100 series on a troy bolt xp 7000 generator? It has this valve cover and of all the serial numbers and model numbers on the plastics and tags nothing gives me a conclusive lash spec for what I'm working on. Shooting flames from muffler.

[@Generatorguru]

Please contact our engineers here with the model code and they will be happy to help: generatorguru.com/need-help/

[@twong789]

I have a Champion 4650 generator that has a vibration problem since day 1. It has gotten better over time, but the handle still shakes while it is running. I've seen videos of this generator on KZbin, and they don't seem to have that problem. My question is, will adjusting the valve clearances on the generator eliminate the vibrations, or is it another issue? I have check the valve clearances, and it is within specs, 0.004".

[@Generatorguru]

Yes it should, but also check your engine mounts have not degraded as this also presents like this. If you would like us to check the clearances are correct, or have an engineer help you further, pls contact our Engineers on generatorguru.com/need-help/

[@James-fr9sq]

What feeler Guage for duromax xp10000e generator?

[@Generatorguru]

We list the setting under the "Cylinder Head Parts" on this page: generatorguru.com/xp10000-xp10000e-xp10000e-ca/ :)

[@popeyeandy959]

In 4 stroke engines the piston goes up twice per cycle. Are you setting the valves at TDC of the compression or exhaust stroke, or does it matter?

[@Generatorguru]

Hi Andy Its TDC of the compression stroke

[@popeyeandy959]

@@Generatorguru Thanks. Good video.

[@Jerryadcock1960Adcock]

3:17 My generator 3:17 is a Champion Power Equipment 4000w peak and 3500w running. Model #40008 60 Hz what is the valve clearance supposed to be at 101 hours

[@Generatorguru]

Yes we do!! We publish all setting on our website: www.generatorguru.com. 1) Got to www.generatorguru.com. 2) Look up your brand and model, the find the "Cylinder head parts" (or valves if diesel) in the product list and click to open 3) You will find the setting are in the description. If your not sure of the model, please contact us on the website and we will be happy to identify it for you. Hope this helps! The Generator Guru Team

[@patrioticwarrior2345]

Whats the valve lash for a pp6500 pure power, generator

[@Generatorguru]

We publish all setting on our site under the Make and Model. It is published under the "valves" listing or the "cylinder head parts" listing (depending on how the manufacturer retails the items.) Click our website to get your settings: www.generatorguru.com

[@patrioticwarrior2345]

@@Generatorguru unfortunately the site doesn't list that generator and couldn't find it on the internet, plus when i called the Pure Power Equipment site they are not the same company that made these generators at all and had no information to help so i believe its a Chinese knock of generator with a Honda clone. Developer company is unknown but generator sold at Costco and home depot en mass years ago. Eventually i used, (intake 0.003, exhaust at 0.005) which worked , tried many combinations ie; (0.006/0.008| 0.010/0.020| 0.005/0.009} but eventually too large snapped the recoil spring or and recoil ropes 4 (heavy duty ) of them in a row on different settings. So once this setting was set on the intake and exhaust valves ONLY AT TDC ( {Compressed one valve to set other method WILL NOT WORK ON THIS GENERATOR) puts so much force on the compression release and should be a warning to customers of this type of generator) and then it started and didn't snap the rope or the spring . You might want to add that to your site for information on this generator type PP6500PR with a 389 cc engine.

[@alfredrussellwallace7932]

Hot or cold? What are the specs for Firman W2100i as I can't find them anywhere? Thanks.

[@Generatorguru]

We found them for you! If you look at page 20 in this manual cdn.shopify.com/s/files/1/0527/3350/9822/files/W01781_Owner_s_Manual.pdf? you will see it states: Maintenance Valve Clearance - Intake: 0.08 0.12 mm (0.003 - 0.005 in.) - Exhaust: 0.08 - 0.12 mm (0.003 - 0.005 in.) Glad we could help!

[@alanshiels4868]

Cant find my generator on your website It's a pacini generator 13hp 5.5kva petrol looking for the valve clearance

[@Generatorguru]

We can help you with that! Please contact our Engineers on generatorguru.com/need-help/. They will ask for pictures to identify the engine model and year, as Pacini did not release their specs. They will be able to get you the settings and any parts you need. (FYI... We do not charge for this service.)

[@Sly6311]

I have this exact engine but i lost the manual how much is the valve clearance ? its senci SC8000E , i cant find the value online

[@Generatorguru]

For future reference - We publish all setting under our valves listings on our website (Or in some cases under Cylinder head parts). Intake: 0.006" +/-0.002 (0.15mm +/-0.05) Exhaust: 0.006" +/-0.002 (0.15mm +/-0.05) (Try the smallest setting first. If still not running right, change clearance to 0.008".)

[@bradleemcderment8174]

yeah igot all that thanks but it would be nice if you tell us what the clearances are on ex and in

[@Generatorguru]

Look up your generator on our quick part finder and find "Cylinder Head Parts" (or valves if a diesel) in the alphabetical product list. All the info can be found in the description when you click the photo. generatorguru.com/. If you have any questions pls contact us by the website for a quick reply. :)

[@drujames272]

Hi there Gen Guru im from Australia and cant find any info on my diesel GenPower 6500 would love to be able to adjust the valves doesnt look like its ever been done , thankyou

[@Generatorguru]

You need to adjust your valves: Intake: 0.006" +/-0.002 (0.15mm +/-0.05) Exhaust: 0.006" +/-0.002 (0.15mm +/-0.05) (Try the smallest setting first. If still not running right, change clearance to 0.008".)

[@Generatorguru]

We thank you for your interest in our help videos. Unfortunately, due to limitations in KZbins comment sections, we are unable to quickly answer questions in the comments. Please feel free to contact us directly here: www.generatorguru.com/need-help/

[@chesterpatterson]

I need to know what the spects are on the valves

[@Generatorguru]

We publish all setting on our website: www.generatorguru.com. 1) Got to www.generatorguru.com. 2) Look up your brand and model, the find the "Cylinder head parts" (or valves if diesel) in the product list and click to open 3) You will find the setting are in the description. If your not sure of the model, please contact us on the website and we will be happy to identify it for you. Hope this helps! The Generator Guru Team

[@MoroniGivens-jq9mi]

how come Champion inverter gen 2000 video does adj while valve open on one side?

[@Generatorguru]

I am sorry I do not understand your question. Please contact our engineers on our website and they will be very happy to help. :) www.generatorguru.com

[@presa609]

Is it possible to over tighten the rocker arm nut and bend the exhaust valve?

[@engineeringdept.generatorg1760]

Dear Dan If the rocker pivot is tightened down too far, it will prevent the exhaust valve from opening and will increase the force that would normally close it so yes it can bend the exhaust valve

[@laurafegely2662]

Threw it on the dolly, put oil in (included) using the funnel (included), dropped in a gallon of the good stuff (see pictures) and it fired right up. Broke it in for a good 15 minutes with no load. She's ready for the next power outage!

[@Generatorguru]

Great work!!! Glad we could help. :)

[@williamalkins1060]

had video but no audio but that's alright . more interested in the generator part . after all you are the generator guru

[@MuhammadWaseem-wd4nu]

Starting kick is very hard. Removed the spark plug and then tried to pull the cord,found all ok .Tried multiple times with plug removed ,it was ok as usuall.But when installed back the spark plug,it became hard. When you open any valve or remove spark plug,then it is not hard as usually but soon when we close the valve or install the plug,it is hard again . What is the problem?

[@Generatorguru]

Pls contact our engineers on www.generatorguru.com/need-help/ and they will be happy to help. :)

[@bettytarver2441]

Hi I need the valve setting clearance for Kipor IG3000 sinemastet digital generator. Thank you very much.

[@Generatorguru]

We publish all valve settings on our websites under the valve listings. Please visit our website www.generatorguru.com/, look up your generator, and check the valve listing description or contact us on www.generatorguru.com/need-help/

[@jey1143]

Who is the gauge for ajust sportman gen4000 DF valve?

[@engineeringdept.generatorg1760]

Dear Sir/Madam is it the valve clearances that you need?

[@jey1143]

Styles Generator Guru yes!

[@engineeringdept.generatorg1760]

Dear Jey 114 You need to adjust your valve lash clearances to: Intake: 0.015" (0.381mm) Exhaust: 0.015-0.020" (0.4-0.5mm) (Try smallest setting first. If still not running right, change clearance to 0.020".)

[@kcholmes793]

Can you tell me valve clearance for Titan 8000?

[@engineeringdept.generatorg1760]

Hi there For fault finding or technical advice, feel free to contact us using the link below www.generatorguru.com/need-help/ This will allow our engineers to review your query and give you the best possible advice!

[@Gersberms]

Champion Power Equipment links to your video, from their technical bulletin page for valve adjustment. For my Champion 100478 generator (intake left, exhaust right) they recommend 0.004 inch (0.1 mm) intake valve clearance and 0.006 inch (0.15 mm) exhaust valve clearance. No need to remove the spark plug, you can just look for when the exhaust valve is pushed down completely - and adjust the intake valve. Same procedure for adjusting the exhaust valve.

[@Generatorguru]

Thanks for sharing!

[@Steve-xl2mn]

I'd expect Champion to link to one of the dozens of Champion's own videos 😉...removing the spark plug eliminates compression when pulling over the engine, to set the valves.

[@jadancel1866]

Boss good day here im in Philippines what the exact clearance of intake and Exhaust valve of wema ohv 6.5 HP small engine

[@Generatorguru]

Please contact our engineers on www.generatorguru.com/need-help/ and we would be happy to send you the info. :)

[@rupe53]

For those wondering what engine you are looking at, it's a knock-off from a 30 year old Honda design. Pretty much the exact engine all of the volume brands are using these days in the 5 - 8,000 watt range gen sets. That would be Powermate, Homelite, Generac, and many others. The only outward difference is going to be the carb, the recoil start, and the exhaust. All of the internals are the same.

[@codylong2012]

Do you know the clearances for that motor?

[@rupe53]

@@codylong2012 .... if you mean clearance for valve adjustment, I use 0.004" on both intake and exhaust. The factory suggests 0.002" but after 25 years doing repairs, I feel that's too tight for how long people wait between services. BTW, that engine has compression release, so you need to set the valves when the piston drops about a half inch below TDC.

[@Rab4Web]

I have a Korean 7.5 KW with an identical design. I need to adjust the valve clearance after 300 hours. Do I use 0.004 on both as you suggested? It should be done at TDC right? Thank you in advance

[@rupe53]

@@Rab4Web ... I would see if the correct factory spec is out there but that area of 0.004 - 0.006 will probably do in a pinch. I would also go a little past TDC in case there is compression release built into the cam. Just watch through the plug hole till the piston drops a half inch as you pull it over. Turn it over a few times and double check your work before sticking the VC back on. BTW, for those who are not doing this on a regular basis they make a "step gauge" where each feeler starts at one size and goes to the next. IOW, the 0.004 will go to 0.005. The idea is the first step fits and the next won't go. It helps you get the proper feel.

[@Rab4Web]

@@rupe53 thank you man! Thank you!

[@rogerdavis141]

When making adjustment on either valves the must be closed

[@engineeringdept.generatorg1760]

We have made a video to show you how to adjust the Valve Lash Clearances: Setting Valve Lash Clearances on a Portable Gas Generator - www.generatorguru.com/help-me-fix-my-generator-repair-advice/

[@skipperjones7490]

My 8750 Predator genny has run great for years, now all of a sudden it won't start. It sometimes makes a backfire sound when trying to start like a loud puff of air out the exhaust. I checked the oil level it is fine and I have always ran it out of gas when stopping so i don't clog the carb. Any ideas what this could be?

[@engineeringdept.generatorg1760]

Hi there It might be a case of the valves wearing and needing resetting to accommodate for this, that is the usual cause for a backfire, please see below for the valve settings You need to adjust your valve lash clearances to: Intake: 0.015" (0.381mm) Exhaust: 0.015-0.020" (0.4-0.5mm) (Try smallest setting first. If still not running right, change clearance to 0.020".)

[@skipperjones7490]

Thanks for the fast reply! I will try that and let you know how it goes. Will the head come off without damaging the gasket?

[@engineeringdept.generatorg1760]

Hi there You should not need to remove the head to reset the valves, please see the video below Setting Valve Lash Clearances on a Portable Gas Generator - www.generatorguru.com/help-me-fix-my-generator-repair-advice/

[@skipperjones7490]

Yea I got it mixed up with the valve cover. I adjusted the valves but it still wont start. I took off the air box and looked in the carb. I cant see a choke flap just the plastic lever moving back and forth. Is this normal for my generator?

[@engineeringdept.generatorg1760]

Hi there That is not normal at all, it would explain why it isn't starting, I also hope that it hasn't found its way into the cylinder head anywhere

[@garyrayray9402]

I'm sorry, I see the wrench sizes but the reason I watched your video I too see what actual valve clearance settings are and didn't need help on the size of wrenches!

[@Generatorguru]

We publish all setting on our site under the Make and Model. It is published under the "valves" listing or the "cylinder head parts" listing (depending on how the manufacturer retails the items.) Click our website to get your settings: www.generatorguru.com

[@kennyroberts6004]

Lots of noise , what is the valvelash clearance?valvelash on briggs 306 cc on craftsman 5000 generator ?somebody for gods's sake put up a Briggs s valvelash chart up , I can't find anywhere

[@skytech95]

The Factory manual for my Generac GP6500 model 0059460 says Intake=0.006" and Exh=0.008" but your site says 0.015" for both. You may want to check on that. Thx for superb video!

[@engineeringdept.generatorg1760]

Hi JR We have sourced the valve specs from the engine manufacturers that provide Generac with the engines so I'm surprised to see a different setting

[@talenttrading]

.15 is metric. Thats0,15 mm you are looking at sae clearances.

[@jameslee6494]

I gave it a test, with .004/.006, I got 55 psi; with .006/.008, I got 62 psi; and with .015/.015, I got 91 psi...likewise, which is correct? I am for .015/.015 (all in ")

[@harshil102]

@@jameslee6494 I think this is too late for you, but the 62psi is correct. 91psi is too much compression, it will fail to exhaust gasses properly and will be more difficult to start.

[@benrodriques]

Mine also says .008 exhaust and .006 intake. I have the gnrx7000

[@jay.aka.miah77allen88]

Hello I hope you can help me I have a duromax next gen power system xp4400e and I've changed spark plugs tested the spark plug an tested it an it worked and checked all the fuel line's make sure there no blocks and air filter and fuel filter checked the carb and its clean changed the oil in it and there's gas in the tank and made sure I had the key in the Run position and still cannot get it run. Every now an again it will backfire when I pull the cord to try an crank it. Please help i cant work without it

[@engineeringdept.generatorg1760]

Thank you for contacting Generator Guru. I have been asked to look into your inquiry and I would suggest checking the valve lash on the unit. If you can provide the make and model of the unit we are happy to locate the information you will need to do this.

[@amraza50]

how to set governor of gasoline generator?

[@Generatorguru]

Pls contact our engineers on www.generatorguru.com/need-help/ and they will be happy to help. :)

[@ztiling5646]

Hi dear , thanks for yours great and helpful videos, and i have some questions. I have a honda generator Model eu 3000is , I would like to know for setting up the valves adjust: How much is the clesran setting for the exhaust fuel gauge valve gap-00 .? And how much is the clearance seting for the intak fuel gage vale gap.00_? I need your instructions please, Thanks

[@jameslackey8683]

Came to this video to find the clearances for each valve l, and find myself digging thru the comments, to see if anyone says, or directs, where else to look.

[@Generatorguru]

We publish all setting under our valves listings on our website (Or in some cases under Cylinder head parts). www.generatorguru.com

[@garyburkhart4150]

I was doing the same thing. Roflmao

[@gsxr419]

My powerhouse generator shop manual says 0.10 intake and 0.15 exhaust. I think it's a misprint. Shouldn't it be .010 and .015?

[@engineeringdept.generatorg1760]

Can I please have the model number of the unit and I will check this for you Regards The Generator Guru Team

[@gsxr419]

Ph3100ri made by powerhouse. Thanks.

[@engineeringdept.generatorg1760]

Hi there If the valve specs are in mm then they look ok, if it says inches then I would say its definitely a misprint but the Chinese use metric so I would assume that to be millimetres

[@gsxr419]

Oh ok. I didn't look always thought the top numbers were mm but looked closer and the second number is marked mm. How stupid of me.

[@Seahorseequestrian]

So why did you not give the clearances?

[@Generatorguru]

They can vary depending on the engine. However, we publish all setting on our site under the Make and Model. It is published under the "valves" listing or the "cylinder head parts" listing (depending on how the manufacturer retails the items.) Click our website to get your settings: www.generatorguru.com

[@anthonyzarb7629]

can you tell the exhaust gage number and inlet thks

[@engineeringdept.generatorg1760]

Dear anthony zarb, Thank you for contacting Generator Guru! We would very much like to help you, but need a bit more information before we can proceed with your request. Please can you tell me the Make and Model of your generator? If you are unable to give either the make or model code, you can send us a picture of the generator from the front and the back, and of the part you require. With this our Engineers would be happy to identify it for you.

[@anthonyzarb7629]

can you gve me your email address please so I can send you pictures of my generator so you can give me the valves specs?

[@engineeringdept.generatorg1760]

Dear Anthony, please send any photos to [e-mail] and put ticket number 49340 into the email please so that we can tie the two threads together

[@rafaeldominguez1991]

10mm ln,,15mm exhaust

[@engineeringdept.generatorg1760]

Hi Rafael Can you elaborate on your message please, what are you referring to?

[@orlyxanderferrer]

Dear, Please, Could you let me know what is the exhaust and intake valve clearances for a Briggs & Stratton 30675A Q6500 Inverter Generator - 6500 Starting Watts QuietPower Series Portable Generator

[@engineeringdept.generatorg1760]

Hi there The valve clearance for both valves is 0.005-0.007 inches or 0.13-0.18mm

[@yazdanalizafari340]

Hi dear thanks for this video! Just l would like to know about the generator eu 3000is, how much is the clearance set of exhaust valve NO :00 ? And also the clearance set intake NO:00 ? If you send me a video or an instruction I will be very happy for that, thanks

[@Generatorguru]

Hi there For fault finding or technical advice, feel free to contact us using the link below www.generatorguru.com/need-help/ This will allow our engineers to review your query and give you the best possible advice!

[@aranf7950]

What consideration needs to taken for the decompression? This looks like a Hyundai engine

[@engineeringdept.generatorg1760]

Dear Aran the decompression lever is useful for cold days or if the engine needs a service but on a good day, it should not be necessary, its a bit like using choke on a cold day to get a petrol engine going

[@OscarLopez-zz7hz]

Mi honda gx 160 kicks when I try to start from the pulling

[@koko3052]

You should add a little bit of important info like settings should be done with warm or cold engine. Rather than using a rigid instrument for checking piston height, use a plastic straw, much safer.👍

[@Generatorguru]

Koko, we provide all setting for each unit under the cylinder head parts listing on our website. Please look up your make and model and find the valves (some models the valves are found under the product "Valves" listing.) In the description it has the settings. If your generator is not listed please contact us. www.GeneratorGuru.com

[@Generatorguru]

Thanks for getting in touch!

[@luisparra776]

Whats the clearence in my duromax xp10000eh?

[@engineeringdept.generatorg1760]

Dear Luis Parra, You need to adjust your valve lash clearances to: Intake: 0.015" (0.381mm) Exhaust: 0.015-0.020" (0.4-0.5mm) (Try smallest setting first. If still not running right, change clearance to 0.020".)

[@OscarLopez-zz7hz]

Rope.why?

[@engineeringdept.generatorg1760]

Dear Óscar López, If you find that the unit is backfiring, or kicking back on the recoil, it will be that the engine has settled in and the Valve clearances need adjusting. Your engine a system of moving parts, and moving parts wear. When you adjust a valve, you're not adjusting the valve itself but compensating for that wear, letting the valve open and close as efficiently as possible. We have made a video to show you how to adjust the Valve Lash Clearances: Setting Valve Lash Clearances on a Portable Gas Generator - www.generatorguru.com/help-me-fix-my-generator-repair-advice/ You need to adjust your valve lash clearances to: Intake: 0.15-0.2 mm (Try smallest setting first. If still not running right, change clearance to 0.2mm.) Exhaust: 0.2-0.3 mm (Try smallest setting first. If still not running right, change clearance to 0.3mm.) Hope this is of assistance.

[@davidbradley8647]

That would be the PCV hose

[@zackahui5866]

Off power knck start cord

[@coltendixon1782]

What the clearance

[@engineeringdept.generatorg1760]

Can i please have the make and model of the unit to be sure i give you the correct information

[@P_double_H]

Wen 6.5hp engine. What's the calibration please?

[@Generatorguru]

Thank you for contacting Generator Guru. I have been asked to look into your inquiry and Can you please provide a little more information as to what you require.

[@P_double_H]

@@Generatorguru I need the valve lash calibration measurements for both valves for this engine.

[@Generatorguru]

Dear Sir/Madam You need to adjust your valve lash clearances to: Intake: 0.015" (0.381mm) Exhaust: 0.015-0.020" (0.4-0.5mm) (Try smallest setting first. If still not running right, change clearance to 0.020".)

[@xzbrend]

*+*

[@Generatorguru]

Thx!

[@chineduokonkwo5777]

You will make a better video if you include audio. Thanks

[@Generatorguru]

Yes, how times and technology have advanced since we made this back in 2015! This presentation was made for teaching Trainee Generator Engineers in a classroom, but we felt it would be nice to share it with everyone around the world. Hope it was helpful.

[@stephanywelshman5531]

what is the valve clearance for a 4200W King Canada generator 7HP??

[@engineeringdept.generatorg1760]

Dear Stephany Welshman, If you find that the unit is backfiring, or kicking back on the recoil, it will be that the engine has settled in and the Valve clearances need adjusting. Your engine a system of moving parts, and moving parts wear. When you adjust a valve, you're not adjusting the valve itself but compensating for that wear, letting the valve open and close as efficiently as possible. We have made a video to show you how to adjust the Valve Lash Clearances: Setting Valve Lash Clearances on a Portable Gas Generator - www.generatorguru.com/help-me-fix-my-generator-repair-advice/ You need to adjust your valve lash clearances to: Intake: 0.015" (0.381mm) Exhaust: 0.015-0.020" (0.4-0.5mm) (Try smallest setting first. If still not running right, change clearance to 0.020".) If you need to purchase parts they are available on this web page: www.generatorguru.com/kcg-4200g/?sort=featured

[@kenhilson786]

@@engineeringdept.generatorg1760 those valve clearances of .015 to .020 don't look right to me.