Better understanding of your VW fuel pump

Inside the air cooled VW block and see how the engine works the fuel pump and some differences in alt style pumps and gen style pumps

[@MikeMoose67]

I appreciate that view… great video 👍

[@brianchisnell1548]

The German pump has a built in filter. To be cleaned at each oil change. Those other cheapies will leave you on the side of the road and no filter.

[@JunkyardDogGarage918]

LOVE my rebuildable fuel pumps I own. The price point of selling a QUALITY pump, that we'd make ourselves, would drive VW owners to installing a GOOD electric pump and a decent regulator for laterally half of the price (and I'm not talking about a crappy pump & reg......YOU know the brands I speak of here). So what's the answer for the entire VW owner-dom, here?

[@savemolives6336]

this is great information and great that you could show how the rod works off the gear.

[@JunkyardDogGarage918]

Glad it was helpful!

[@samp6770]

Excellent video! Short, sweet, detailed, lots of good examples and demonstration. Answered all my questions, thanks a bunch.

[@ronj2110]

That's the best video I seen which I already know how it works can work on Volkswagens for over 40 years but that's good for some people that don't understand

[@howieallen2339]

That was excellent and very well narrated. Thank you

[@JunkyardDogGarage918]

Glad you got something out of it

[@desiarnaz7739]

Thank you for such an amazing and informative video. I’m doing some research on a fuel pump for a ‘65 Type 1 Beetle and this truly helped.

[@JunkyardDogGarage918]

glad it helped your research!

[@brianchisnell1548]

Get an original German Pierburg. Built in filter. OEM.

[@tecate9408]

Interesting. I have a German Pierburg dome style that uses a 108mm generator style rod, but it clears my alternator and seems to work fine

[@JunkyardDogGarage918]

Yup. Sometimes they do that

[@eso9518]

Great video brother! I have subbed!

[@SeanThompsonDC]

Ha! Great this would have taken me a ton of time to figure out EXACTLY what you explained! Thank you!!!!! (Subscribed!)

[@JunkyardDogGarage918]

Youre welcome. Keep in mind that there are ALWAYS exceptions to the rules.

[@charithjg1982]

Thanks for sharing the knowledge

[@gilamesse]

I recommend a video on rebuilding the Pedal assembly.

[@JunkyardDogGarage918]

Due to us moving it may be a little while but stand by!

[@maximebarthelme5834]

Great video, thanks for sharing your knowledge !!

[@JunkyardDogGarage918]

Thanks. We're trying to come up with more ways to educate on how your old VW works and how you might be able to keep mechanical repair costs down. If you got any suggestions, please feel free to let us know and we'll do our best to accommodate

[@rolandojuarez3393]

Well made video thank you for your time

[@FuryVoxx77]

Great video!!!

[@colmblackburn27]

I’m getting too much fuel pressure with both types on my car. (6psi with generator type and 5psi with alternator type. I only need 2/3 for my little formula vee engine. Do u have any idea why it’s producing too much pressure? Iv never had this issue before. Great video thanks

[@JunkyardDogGarage918]

I do. It all boils down to quality control, or a lack of. Unfortunately, our little FUEL PUMP, the FUEL PUMP RODs, the PUMP BASE it sits on and the thickness of the "gear" that the rod travels up and down on (thats 4 items that need to be within a HAIR to create the correct pressure) are just not up to the quality/specs they once were. Good news is, you have options! OPTION ONE; get a fuel pressure regulator. Not a cheapo. Get one that actually will go on a race car and pays particular attention to the under 10lb mark. OPTION 2; You need to take off/grind a millimeter or 2 (in some cases maybe 3) from the flat end off the "fuel pump rod". OPTION 3; add another fuel pump gasket (or 3 in my case) to the base of your fuel pump.

[@JunkyardDogGarage918]

In case you didn't quite get exactly what I was saying.....the rod is plunging to deep into the pump, so we're either raising the pump, OR we're shortening the rod. And BTW......(here comes your unwanted advice!) w/o going in TOO deep here ( no pun intended!!), the closer to 2 psi, the better. 2.4 is on the high end if you actually calculate out the factory specs, then convert FROM metric. Remember, these cars were all done in metric by people WAY more particular then you and I. Good luck and I hope that helped

[@johncollins5552]

To reduce pressure you add more gaskets to the base of the pump, each gasket drops 0 3 bar I think, so you need to use a good bunch of them. I would probably try and make my own from some heavy duty cardboard instead but it's your call.

[@jerryjoejackaroe]

Can you tell me on the altermator style pump which port goes to the fuel tank and which port goes to the carb. thanks

[@JunkyardDogGarage918]

W/O seeing it, my answer here is in NO WAY definitive but MOST will be stamped w/ an arrow but USUALLY the top one is the inlet. As a cautionary piece, if you can't decide which is which, don't mess w/ it and have a professional mechanic install it

[@ronniethode8036]

Clutch disc pressure plate and throwout bearing different types

[@antoninocutrupi8641]

Ciao. Mentre sono con la seconda marcia al minino 1.5 giri, accelero e la macchina singhiozza, strattona, come se non passa il gasolio. Sai il motivo?

[@JunkyardDogGarage918]

Ciao! Ci sono MOLTI motivi per cui la tua macchina potrebbe fare questo, ma inizierei dal tuo carburatore. Spero che questo aiuti e buona fortuna

[@TomEngStudios]

Well done. Thank you!

[@borjamillan9746]

Very interesting

[@kruisinwagen]

Thanks. Did you ever make the rebuild video?

[@JunkyardDogGarage918]

Not yet

[@tecate9408]

Any chance you could do a video showing what gas going thru filter should look like, mine looks like a fountain goi g off in there, then after throttling it always cuts out and dies

[@JunkyardDogGarage918]

Should be up shortly for you

[@cynthiaayers7696]

My understanding is. If it go pump pump, it will go Putt-Putt.😁

[@JunkyardDogGarage918]

🤣 well said

[@emilianogarciagarcia6564]

Do you know the pressure that these pumps can do ?

[@JunkyardDogGarage918]

They're SUPPOSE to pump no more then 2 psi (2.2 psi is starting to be on the high side) BUT, due to the LACK of quality control nowadays (it is what it is!), I've tested brand new ones, right off the shipping container at 7 psi! WAY to high to ever get the motor dialed in w/ stock components. This will contribute (to a certain degree) to most flat spots on the beloved 009 distributor (which I personally don't use)

[@bigjohn4574]

Question , if you use the generator push rod on a alternator pump. Will that lead to excessive fuel pressure going into the carburetor and fuel mixing with engine oil ?

[@JunkyardDogGarage918]

Sorry for the delayed reply, Big John. Spring time and VW outings are hand in hand!🌞🌊🌊 It will contribute to this. "Yes" to the entering into the crankcase. That combo could mean a near future engine rebuild. No bueno, amigo.

[@daveturner9780]

@@JunkyardDogGarage918 l used the longer rod with alternator pump. Bent the rod broke the plastic rod guide. What other damage could it have done ?

[@JunkyardDogGarage918]

@@daveturner9780 the fuel pump and plastic stand are the weak points in the system and thus, CHANCES are nothing else

[@daveturner9780]

@@JunkyardDogGarage918 thank you

[@peterdibenedetto969]

My pump fuel pretty much trickles the fuel into the fuel filter, is this normal? The motor only fires up and runs for a few minutes after l use quick start through the air filter.

[@JunkyardDogGarage918]

So sorry for the late reply. It's old Volkswagen season around here and thats a busy time for me. Depends on what your idea of a trickle is. The pump should only be pumping 2 psi (2.2 to 2.4 to be exact) even with duel carbs.

[@JUKESKA]

Hi, on the Alternator style pump, which is the fuel in and which is the outlet to the carb, thanks.

[@JunkyardDogGarage918]

Sorry for the late response. The top nipple is fuel in. There should be an arrow stamped on it, pointing inward.

[@stevecomstock7420]

I have a Generator type. It ran fine last year now it won’t pump fuel. I have changed the fuel pump and rod and it still won’t pump fuel. What could it be. Thanks Appreciated

[@JunkyardDogGarage918]

Pump is probably bad.........again. Sometimes they go bad quickly

[@JunkyardDogGarage918]

Or your system is clogged up somewhere

[@05_Dmax]

How do you tell if the pump is bad when I go to turn over the engine I get no gas that comes out to the carb but I do have gas coming in from the tank

[@JunkyardDogGarage918]

THERE IS MORE THEN ONE WAY TO DO THIS, BUT......For ME, its a 2 person job. I disconnect the main coil wire (the one the same diameter as the spark plug wires), AT THE COIL. Doing this will allow someone to turn the engine over, w/o any chance of it starting. NOW I can disconnect the fuel line AT THE CARB and place it into an empty clear glass vessel. Have the person in the car turn it over. About 5 to 10 seconds is all you'll need to see if fuel is coming into your glass/jar. Be careful of the fan/alt belt, it still can "grab' onto sleeves, long hair etc. If your glass was good and clean you can put the fuel back into your tank, or just dispose of the fuel properly

[@JunkyardDogGarage918]

ALSO a VW air cooled engine insists on around 2 to 3.2 pounds of pressure to operate (Fuel injection VW's are excluded, here) the car properly, this ENCLUDES MOST DUEL CARB SET UPS. This equates to not much more then a dribble and why your air cooled VW operates just fine w/o an electric fuel pump and pressure regulator......I mean, unless you enjoy wasting your hard earned money.

[@stevecomstock7420]

Me again. I’m sorry, I don’t no how often you check your sight. But I’m kinda in a pickle. You see I am a clown in the Shrine unit and our first parade isTuesday. Sure could use an answer quickly. Thank You

[@PredasWorld]

I'm trying to find the fuel rod but when I look for that on any of the parts stores nothing comes up for "Fuel Rod". What should I be looking for?

[@JunkyardDogGarage918]

Try fuel pump rod carcraftstore.com/fuelpumprod.aspx And make sure you're checking VW parts stores. I don't think you'll find it at any other auto parts store. Good luck

[@neilschafer3669]

I have a 73 sports mobile camper it has dual carbs I got fuel in it but won’t fire over but it turns and tries to start I’m thinking the fuel pump any tips to fix and also adjust carbs is appreciated

[@JunkyardDogGarage918]

Neil, not enough info to make a pin point response BUT check to see if it's getting fuel. IF it is, start looking at the distributor. If it's not, go to the pump, young jedi. Good luck and keep us posted

[@JunkyardDogGarage918]

BTW....73 Sportsmobile? Nice. Very nice.

[@jamescox5626]

What if the rod that drives the fuel pump is not moving up and down ?

[@JunkyardDogGarage918]

Youve got something broken internally and shes gotta be taken apart.

[@jamescox5626]

@@JunkyardDogGarage918 I think that I will just put in an electric fuel pump.

[@Natej3ds]

What's the name of the pump from 1:05? I've been looking for it everywhere cause I'm trying to find a rebuild kit

[@JunkyardDogGarage918]

That's for an earlier, smaller motor. I've currently got one on an 1835,w/ duel Kads. After accommodating for its fuel flow, it works great and has that cool old school look I wanted airheadparts.com/vw-part/fuel-pump-repair-rebuild-111-198-555/ They have a tech department that will help you and is second to none, but have patience, they field call from ALL over the world

[@Natej3ds]

@@JunkyardDogGarage918 thanks man!

[@Its_about_that_time]

I have a generator style fuel pump and using an alternator. Can that be a problem or am I ok.

[@JunkyardDogGarage918]

The problem can be that it may rub up against alt. Keep an eye on it

[@Shon9tilR]

I got code P2187. My car won’t start. Any suggestions what i can do?

[@JunkyardDogGarage918]

you can do a "search" on the world wide web as to your year, make & model for your cars codes. Even if you can't fix it yourself, you'll at least have an idea of what it is. WARNING; Some codes are VERY generic and won't tell you exactly what is wrong BUT will give you a system. Example; "fuel supply" Good luck and hope that helps

[@cynthiaayers7696]

Now if it was a code PC -187 then it shows you been watching all the old Star Trek movies.