HONDA GC 160 Engine How To VALVE INSPECTION and ADJUSTMENT - Specs

[@kevindoherty2716]

All you have to do is be sure when adjusting each valve that whichever one your adjusting you make sure the rocker is on the base circle of the cam lobe .. Simply put you want the rocker resting on the opposite side of the lobe where there is no lifting action and completely off the ramps which is the only area you would expect to have any clearance so the valves can seat .. Notice on the Honda there is only one lobe to operate both the intake and exhaust valves .

[@degas55]

The engineers at Honda have thoughtfully provided timing marks on the belt driven wheel to easily find TDC, so there's no need to stick a screwdriver into the cylinder. Also, I've never heard of a combustion stroke before. It's the power stroke. You want to make certain that the engine is cold when adjusting the valves, and that the piston is at TDC on the compression stroke.

[@lifeisgood070]

Got a pic of the markings? I'm about to do this on the GCV190. I wish I could find a free service manual pdf.

[@davidhatzenbuhler6888]

He said compression stroke not combustion stroke.

[@degas55]

@@lifeisgood070 Sorry, I don't. There must be one available somewhere on the web, though.

[@eminencegrise3872]

@@lifeisgood070 You can see the timing marks at 2:04 in this video: kzbin.info/www/bejne/ml63o4Cwq9p6hpI

[@mikemike2409]

Ummm there's an arrow on the flywheel and and mark on the timing gear just line them up... .006 intake and ..008 exhaust...simple...

[@johncollins8304]

A Honda service sheet unnumbered makes no mention of a (e.g. cork) gasket but instead says, "Apply a liquid packing (ThreeBond 1207 or equivalent) to the cylinder head cover installation surface, and install the cylinder head cover." I thought they were called a rocker cover.

[@darwingortiz7013]

I have friends like Jeff, i make sure they keep their hands away from my equipment. So many things wrong in this video that makes me praise the bravery of the author to publish it in a video.

[@JeffsLittleEngineService]

Good job, thanks for watching

[@MrDemonology]

You are not supposed to ever run a pressure washer without water, this will burn up the pistons and seals in the water pump quickly and make the water pressure very weak or not make any pressure at all.

[@JeffsLittleEngineService]

correct. I was only going to use the engine.I threw the pump away

[@marknye51.thefixitguy]

I can't believe that Honda didn't make a gasket for these GCV engines like they've done for all their other engines for the valve cover. Thanks for the great video. I'm working on a Ryobi Pressure Washer with the GCV160 engine that's popping and backfiring. After I adjust the valves tomorrow I'll put silicone on the cover and reinstall it

[@brucea550]

Gonna have to work the rocker cover off real easy like without denting it. Let me show you how I do that with a sledgehammer. Good how NOT to video.

[@johnhempstead3074]

time for a new pump now.

[@robertpetty2272]

Would be nice to suggest type of oil proof sealer to use on valve cover. Not good...

[@trevorclaar7122]

Gees man chill you bent the hell out of that I just pried on it lightly all around it and it came off good I have a mikuni 35 mm carb on mine an a mother cycle exhaust on it it’s a beast be careful adjusting those there is a compression release in the cam so think about that

[@stephengranger9019]

Great video thanks for the info. These are great little engines. I have the GCV 190 which I think I have a timing problem. Watched the video on it and not much to it other than pulling it apart to adjust the timing. Valves are already adjusted, new carb, spark plug and new coil. Not firing on trying to crank it. My brother said it probably jumped timing on a backfire. Hopefully I'll get it running 😆

[@wayneessar7489]

Clever use of the "Hand-i-pad"!

[@sudanphab9810]

I have the same exact motor on my mini chopper but it would not start up keep coming up with the video you you know what you're doing

[@kevinbolin7665]

Jeff Iam new to your channel and after watching a few videos am actually curious .I noticed you provide specs for most of the engines you adjust valves on .However I haven't seen any with you using a valve grinder, pilots, stones or even a valve seat cutter to recondition valves . Fore give me for asking but isn't a valve seat cutter and is pilots imperative to recondition heads even if you purchase new valves and intend on lapping . I mean respectfully valves do wear and in doing so the seats are affected as well . So how do you contend with these issues ? What about a warped head as a result of over torqueing from other do it there selfers that expect your expertise to prevail where there efforts failed . I know personally when I do a over haul or rebuild I grind my valves and seats …..even dress the valve steams with chamfers on the older L head engines to ensure proper end gap or lash is correct . But I haven't seen you resurface a head on a surface plate or check the flatness of a head with feeler gauges . Do you just have such work done at a machine shop ? Or do you just purchase new heads with valves ? Do you just clean the carbon deposits from the old heads then reapply ? I only ask because you advocate your a expert and I have been in many shops over the years all of witch were expert dealers whom provided surface plates and proper valve grinding equipment for me to use . As I expressed in another comment on another video you provided ….I Know your experienced that remains evident in the quality of work and videos you provide to your viewers . So where is the equipment ? I know you push the minimist mentality in your videos to educate the common do it there selfer . But at least up to this point in viewing your videos I haven't seen any valve grinding equipment . SO WHERE IS IT AT ?

[@JeffsLittleEngineService]

Those are the old days Kevin! I remember them. Replacement parts costs (even oem) are so cheap these days that rebuilding heads and valves is usually not cost effective timewise. Also assembly tolerances are so tight at the factory these days most engines will never live long enough to need valve work unless something mechanical breaks. This is my experience over the last 20 years.

[@kevinbolin7665]

@@JeffsLittleEngineService That's ironic I to have a little over 26 plus years of experience. And you do make great points . Personally after giving your words careful consideration I concur as at least in the past 10 years or so most parts become superseded or {N.L.A.}...no longer available when it pertains to the older equipment . Briggs and Stratton is a great example of these facts as they only offer 20 over pistons on most of there older models . Makes me wonder with all this service by replacement mentality whats to be expected in the up coming 10 years or so . As I am sure we can both agree quality sure isn't what it used to be . I noticed in one of your recent videos a cam failure on a Intec engine .I to have encountered my fair share of cam failures on 28 threw 33 cubic inch OHV Intec engines . The cams gears are just to thin anymore ….hell for that matter the compression releases break and cam lobes wear down as well . I spoke of heads in my previous comment …….How many times have you had to purchase a new head because of valve guide movement on these single cylinder Intecs or really even the twins . Personally I encountered 16 just last year after looking up sales to customers …..it would be hard to say how many valves and heads we ground ….but a fair estimate would have been at least 40 or so on Kohler / Briggs/ Kaws/and of course Onan collectively . So having the valve grinding equipment is a wise investment . Still I can see your point as well ...What I am about to mention really dosent pertain to Briggs engines ……..But Husqvarna chainsaws …..LOL …..Hell I believe Husqvarna would make plastic pistons and cylinders and sale them under other brands as a parent company if they would hold up long enough for a warranty to expire ….LOL ….look at how they cheapend Redmax quality . They where having difficulty with making there version of the strato charging tech and basicly bought out Redmax to own the rights . Ever wondered why Jonsereds started labeling FD on there oil mix? …...Thankyou Husqvarna …..for providing the Japanese standard ….That already existed with Redmax …..I have witnessed so much shady crap it is unreal by Husqvarna …...Jonsered ….LOL...….Oh my goodness …..I have seen Jonsered sales obligations in full forse...They change sales reps several times to many about 2 years ago ….seriously we had 4 in 6 months ….all of witch wonted to push obligation sales because they were the so called new rep at the time . Complete bullshit but they insisted more inventory for Jonsered each time. So needless to say Bolins small engine dosent contend with Jonsered anymore. Now lets talk about Husqvarna and there precious Poulan lines ….We carried Poulans for several years at my employers dealership ….I F@Cki*g hate Poulans . They are the biggest pieces of shit god ever cursed mankind with . And it becomes apparent how I deal with Poulans in all the various colors and brands there sold under by watching my channel . ….But I have deviated away from topic ….so anyway ... {CAMS }...Can you believe the plastic …..sorry composite ...crap you find in Briggs push mower engines ? What about the PTO gears ….geezes …..what sorry pieces of S%it ...Last year we had 4 push mowers come in with snapped cam gear teeth and PTO teeth all because of common issues …...not extreme …..common everyday homeowner situations such as the forgotten walnut or thick grass clump that on previous briggs engines would have never been a issue . Truly sad what people are forced to contend with after spending egregious amounts of cash .

[@jockesgarage6049]

I got the same Engine on my lawmover. Its very hard to start. Its run fine when is running

[@JeffsLittleEngineService]

I usually use carburetor cleaner and good ol wd-40. yes you can rotate the blade to find top dead center

[@vicsponjr]

Jeff I have a GC160 pressure washer. Took the pump off to service the unloaded valve and put it back together. Changed the oil in the engine, fresh gas. Since then the GC160 does not want to start when hot. When it is cold it fires right up one pull. Could it be that the unloaded is not set properly? I don’t have a pressure gauge to check it.

[@JeffsLittleEngineService]

Hi friend. I have experienced this many times and here is Jeff's Tech tip #453655: I would clean/rebuild the carb and replace the float needle valve. If the carb is filling up too much or seeping gas it is basically flooding out at warm start up. Cold starts don't mind a little extra gas to get going but warm starts are effected geatley by a flooding carb.

[@vicsponjr]

@@JeffsLittleEngineService thanks for the reply Jeff, I will check it out!

[@vicsponjr]

@@JeffsLittleEngineService took the carb apart a second time because it still wasn’t right, I forgot the emulsion tube. Still nothing, now not even firing on starter fluid. I ordered a coil.

[@sportbroslogankyle1620]

For the vavle cover you just need to use a flat head

[@bobczz3919]

Those covers are sealed on using sealant not a gasket. The best way is to heat the cover sealing area with a heat gun or torch. Then it will pry right off.

[@mikewalker1885]

In a 100 years time when people watch these combustion engine videos they're gonna piss themselves laughing ! What were those dinosaurs doing ? Carbs, valves, pistons, alternators, timing, tuning, etc, etc, etc 😂😂😂

[@JeffsLittleEngineService]

you are probably right lol!

[@mikem5475]

Good joke Haha

[@cherokeefiddler]

Honda GCV160 on newer 217 push mower. Pull rope is very free and blade spins below as if nothing else is moving inside engine. Blade spins several times longer than if a normal crank. Nothing happening. Could this be a broken cam belt? There is no noise from any moving parts. Thanks.

[@JeffsLittleEngineService]

yes, or something else bad like a broken rod.

[@rev.randall2292]

Their crazy valve cover gasket uckum pucky is like liquid nails.

[@josesalazar7436]

Tanks you for your help I fixed my pressure washer exhaust valve is was too loss now work nice 👍

[@AZaker-jw1fm]

Valve cover comes off at 3:45

[@dennisqwertyuiop]

I never run pump dry

[@JeffsLittleEngineService]

good

[@kevinbolin7665]

Correct ….You should never run a pump dry .

[@hard3169]

And valve adjustment.CG190

[@joyler2446]

And you need to seal the valve cover with Honda bond

[@philliphall5198]

As AllWAYS cracked rocker or stuck exhaust valve

[@ericpigg2689]

Has anyone had the exhaust valve guide push out on this motor and bend the rocker arm? If so, what was your fix. Best plan I have found is high temp 640 Loctite and tap it back in, then hope for the best.

[@macknumber9]

Eric i hope you see this message.... I have same engine gcv160 and cracked rocker arm exhaust side....i cant tell if the guide popped out too but it looks like it did because when i push intake valve in by hand it moves in way further than the exhaust valve does...the exhaust valve barely moves much at all compared to the intake...

[@ericpigg2689]

Do you have a part number for a replacement exhaust valve guide for this engine? I am not finding one. My exhaust valve suffered from lack of lubrication, and galled up. Need a new valve and guide, if it is serviceable. Otherwise, I have a boat anchor. It will run good for 30 minutes, but once it makes enough heat, it locks up and breaks the rocker arm.

[@conner5611]

Id contact honda and ask them Chance's are you might need a new short block

[@ericpigg2689]

@@conner5611 I drove the guide back in and used some high temp close tolerance Loctite to hold it. Also took a punch and peened around the guide a little bit. Ran it several hours since with no issues. If it comes out again, it will be scrapped. Not worth replacing the block on this 10 year old pressure washer sadly.

[@matasu]

Not too smart running it without water! Don’t worry about the smoke, your pump will be no good anymore.

[@jkerwin9558]

Honda always seals their valve covers. They do not use gaskets.

[@conner5611]

My gx190 has a gasket

[@rkgsd]

You can get a valve cover for less than $10 on ebay.

[@timb7775]

Or you can just remove it properly and reuse it and save 10 bucks.

[@BobSmith-mc7uq]

Compression stroke. No such thing as a Combustion stroke. Repeat after me.......Intake--Compression--Ignition--Exhaust. Now you are working it!

[@1973mre]

I am laughing my ass off right now as I’m dealing with trying to remove a valve cover. So the secret is beat the hell out of it.

[@JeffsLittleEngineService]

gotta do watcha gotta do!

[@birdrs]

Why so obsessive about TDC? Is there really that small of a space on the cam in which the valves are unloaded?

[@JeffsLittleEngineService]

I understand your point. However, it is a very important adjustment so I am a little obsessive about it and I am trying to show, teach and explain somewhat proper procedures.

[@birdrs]

That's cool. I understand. Wasn't trying to be critical, just didn't get it. But I see your point. Thanks for the video.

[@joefro972]

the more it smokes the better it will run ,lol

[@peterpiper6914]

He just burn up the power washer pump by not pumping water through it nice job

[@JeffsLittleEngineService]

I was not going to use the pump, just sell the engine

[@mikemike2409]

Flat screwdriver and a hammer I'm working on one...

[@mikemike2409]

Ultra gray silicone on Honda...

[@deborahabercrombie9461]

water pump is now toast

[@JeffsLittleEngineService]

yes it was already toast I just needed the engine

[@angelaprestwood1351]

you should of used a puddy knife even i know that much my thought

[@1973mre]

It has a lip on the valve cover and you cannot get a putty knife underneath.

[@jimmyholt8180]

Way to clean off the valve cover buddy . and you need a bigger hammer

[@carlosavalos9937]

How can I tell what valve is what I took a head apart and took the valves out now I don't now what side goes where

[@conner5611]

🤦

[@DaleB809]

Well that water pump is shot now !!!

[@JeffsLittleEngineService]

I was only interested in the engine.

[@Banshee365]

You aren’t seriously a small engine mechanic are you? Combustion stroke? Didn’t clean and reseal the valve cover? Ran the unit for an extended period without water hooked up? You know how the pump is lubricated and cooled, no?

[@JeffsLittleEngineService]

Thanks for the comment. Yes, I resealed the valve cover. I did not care about the pump it was probably already bad, i threw it away.

[@lifeisgood070]

Is this similar to the 190cc?

[@JeffsLittleEngineService]

Not sure, probably

[@lifeisgood070]

I saw the valve clearances were the same 5.9 thousandths and 7.8 thousandths.

[@vinceking7878]

What oils the valves?

[@kevinbolin7665]

OIL.....LOL......No seriously crankcase pressure and a device called a slinger gear internal to the engine . Note that on some Hondas much like some older Briggs engines the Connecting Rods cap or collar had a small piece of alum protruding from it called a dipper .

[@conner5611]

The timing belt brings oil to the top end I ran mine with no valve cover to see how it gets lubed and the oil gets slung by the belt

[@carlosavalos9937]

Are the intake and exhaust valves different

[@JeffsLittleEngineService]

sorry I don't know

[@ClayAutery]

The problem isn't just with the clearance. Either the rocker arm pin is worn, the rocker arm pin holes are worn, or the rocker arm tower bosses are worn. Too much play VISIBLY evident on the exhaust rocker arm mounting location.

[@chriss4365]

0.06mm?

[@h82fail]

cdn.powerequipment.honda.com/engines/pdf/manuals/00X31Z8B0430.pdf Thousands .006in Intake .008in Exhaust +/- .001in or .15mm Intake .20mm Exhaust +/- .02mm

[@philliphall5198]

Fine job of destroying water pump anyway

[@JeffsLittleEngineService]

the pump was not going to be used. I sold the engine by itself for a minibike project.

[@wayneessar7489]

Does this engine have compression release?

[@JeffsLittleEngineService]

idk

[@wayneessar7489]

+Jeff's Little Engine Service idk? I have not heard of that small engine part.

[@jaarryifleshblood315]

Wayne Essar it's builed in the cam gear

[@jasonhodgws5266]

@@jaarryifleshblood315 yes

[@ArturoGarzaID]

Mine is too fucking loud, any help?

[@garyt7830]

Vale Adjustments are critical,, if too tight, you will burn the Valves ….. Please USe Correct Tools, and have the Correct alignment of Pistons .. Also you have to have water for Power washer when starting ………… D Grade Video

[@wreckedrc5137]

Not when you're trying with junkyard special your friend brought. Honda's last forever the pump had to have been shot already to be tossed. D grade comment

[@fishing5778]

Gary T whats the correct tools in vale adjustment? my gc160 engine get stock or wont turn continueously when i pull the recoil starter. do you have any idea what might it cause? , it seems the valve rocker arm are set correctly.

[@HealthSupercharger]

YOU ARE BURNING OUT THE WATER PUMP

[@JeffsLittleEngineService]

I was not going to use the pump it was already bad

[@mikewalker1885]

The combustion engine is waaaay too complicated, all praise electric !

[@gradea1636]

Jog on

[@lonhoschar1943]

I gave you a thumbs down because you started it without a water source to the pump.

[@JeffsLittleEngineService]

I discarded the pump. All I wanted was the engine.