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1972 Westy
Samba Member
Joined: January 04, 2015
Posts: 2
Location: Temecula, CA
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 Posted: Sun Dec 10, 2017 10:15 pm Post subject: electric fuel pump and regulator |
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Looking for some advice when it comes to location of electric fuel pump and regulator. Fuel line comes in on the right side of the engine. Should I mount the pump and regulator to the back of the engine bay (fuel tank cover) or run the fuel line all the way to the left side of the engine bay where I can mount both of those away from the engine and then run the fuel line back to tee for dual carbs? New to buses but thinking mounting above engine isn't a good idea due to heat but running a fuel line all the way to the left side of the compartment and back doesn't sound too good either.
I know with bugs, you could mount both in the front by the tank but that isn't possible with buses. Any help would be greatly appreciated!! |
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timvw7476
Samba Member
Joined: June 03, 2013
Posts: 2201
Location: seattle
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| Posted: Sun Dec 10, 2017 10:55 pm Post subject: Re: electric fuel pump and regulator |
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The fuel feed spigot from the tank is on the left, the fuel line from the right
rises up from the mechanical fuel pump mounted real low on the case,
just ahead of cylinder #1 (the one furthest forward on the right side).
Deleting the mechanical VW pump changes the routing alot. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50338
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| Posted: Sun Dec 10, 2017 11:06 pm Post subject: Re: electric fuel pump and regulator |
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I have my pump mounted high to get it above the level of the tank and use steel tubing on the supply side of the pump. This way if I had an engine fire the fuel from the tank would hopefully quit flowing once the pump quit running and the rubber line between the pump and the carb burned off. I can also change the filter without having to crawl underneath and will loose very little fuel when doing so.
Most people here seem to freak at the idea of having a pump in the engine compartment, but I have not heard of a single verifiable problem because of that. You do want to use hose clamps on the hoses and I would avoid the little filters without swages to hold the hoses on.
You want to use either 30r14 or 30r9 fuel line as they can handle the alcohol in today's fuels. 30r6 and 30r7 fuel lines should not be used no matter what the poorly guy at the autoparts tells you.
A rotory pump may need to be mounted low, beneath the bottom of the tank, as they don't suck all that well.
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Terminatez
Samba Member
Joined: June 07, 2015
Posts: 340
Location: Sun Valley, CA
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| Posted: Mon Dec 11, 2017 11:18 am Post subject: Re: electric fuel pump and regulator |
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I have the fuel pump outside the engine bay and my regulator on the firewall.
Fuel pump mounted using these to help with the vibration
_________________
1972 Westfalia P30 hardtop Campmobile [On-going Restoration]
| aeromech wrote: |
| I don't think I've ever seen an engine in worse shape. |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Mon Dec 11, 2017 12:29 pm Post subject: Re: electric fuel pump and regulator |
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| Terminatez wrote: |
I have the fuel pump outside the engine bay and my regulator on the firewall.
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just as an FYI - the metal on a piece of pipe is only as thick as the valley where the threads are cut. We had a gauge sender about the size of your gauge break at the base that cost us an engine - looking at the big brass tee you have along with the gauge weight it concerns me. Ours was carrying oil and not fuel. Had it been fuel we would have lost the car. When I showed the failed parts to a friend who had been in racing for many years, thinking it was a once in a lifetime kind of failure, he informed me that he had seen that many times before. The weight of a gauge, sender etc., is too much for the threads and the pipe eventually breaks along a thread.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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1972 Westy
Samba Member
Joined: January 04, 2015
Posts: 2
Location: Temecula, CA
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| Posted: Mon Dec 11, 2017 10:28 pm Post subject: Re: electric fuel pump and regulator |
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| thanks everyone. I was thinking about mounting fuel pump below engine bay also. Lots to think about. I appreciate it!! |
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Terminatez
Samba Member
Joined: June 07, 2015
Posts: 340
Location: Sun Valley, CA
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| Posted: Tue Dec 12, 2017 5:45 pm Post subject: Re: electric fuel pump and regulator |
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| SGKent wrote: |
| Terminatez wrote: |
I have the fuel pump outside the engine bay and my regulator on the firewall.
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just as an FYI - the metal on a piece of pipe is only as thick as the valley where the threads are cut. We had a gauge sender about the size of your gauge break at the base that cost us an engine - looking at the big brass tee you have along with the gauge weight it concerns me. Ours was carrying oil and not fuel. Had it been fuel we would have lost the car. When I showed the failed parts to a friend who had been in racing for many years, thinking it was a once in a lifetime kind of failure, he informed me that he had seen that many times before. The weight of a gauge, sender etc., is too much for the threads and the pipe eventually breaks along a thread. |
I don't think I catch what you're saying.
Correct me if I'm wrong, but are you saying that the weight of the tee + gauge can eventually be too much for the small connection between the regulator and the tee and can snap?
_________________
1972 Westfalia P30 hardtop Campmobile [On-going Restoration]
| aeromech wrote: |
| I don't think I've ever seen an engine in worse shape. |
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lil-jinx
Samba Member
Joined: August 14, 2013
Posts: 1109
Location: New Brunswick,Canada
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Terminatez
Samba Member
Joined: June 07, 2015
Posts: 340
Location: Sun Valley, CA
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| Posted: Tue Dec 12, 2017 6:40 pm Post subject: Re: electric fuel pump and regulator |
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Thanks for the heads up.
Going to see a way to support both so this doesn't happen.
_________________
1972 Westfalia P30 hardtop Campmobile [On-going Restoration]
| aeromech wrote: |
| I don't think I've ever seen an engine in worse shape. |
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