Holly fuel pump |
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Holly fuel pump |
eimc |
Aug 3 2014, 05:21 PM
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#1
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Newbie Group: Members Posts: 45 Joined: 2-October 04 From: Mechanicsburg Penna. Member No.: 2,873 Region Association: None |
Iam running a holly red fuel pump on my 914-6 race car . It's a 2.2 with 40mm webers.I had hesitation problems after about 4 laps at pittsburgh grand prix. I cleaned the idle(progresion) jets( 4were clogged) started the car and it sounded ok. As I was checking in the trunk for fuel leaks I felt the fuel pump and it was hot. Then I checked the fuel pressure at the regulator and it was 3 pounds . Checked both fuel filters and cleaned , blew air in all lines to check for restrictions and everything ok. Mounted another holly red fuel pump and ran for 10 minutes and it was hot to the touch also and fuel pressure would not go above 3 pounds. I presume pressure should be 6 to 9 pounds ? Anyone have any opions? Thanks Paul
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Matt Romanowski |
Aug 3 2014, 07:18 PM
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#2
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Senior Member Group: Members Posts: 878 Joined: 4-January 04 From: Manchester, NH Member No.: 1,507 |
I have a Holly blue pump and it's always hot. I thought it was going bad but maybe they just run real hot?
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vintage914racer |
Aug 3 2014, 08:56 PM
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#3
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Member Group: Members Posts: 429 Joined: 28-December 03 From: Minneapolis, MN Member No.: 1,473 |
I have a holley blue and it is also hot to the touch after a session on the track. I think it's just he nature of these pumps.
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eimc |
Aug 4 2014, 08:04 AM
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#4
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Newbie Group: Members Posts: 45 Joined: 2-October 04 From: Mechanicsburg Penna. Member No.: 2,873 Region Association: None |
Iam running a holly red fuel pump on my 914-6 race car . It's a 2.2 with 40mm webers.I had hesitation problems after about 4 laps at pittsburgh grand prix. I cleaned the idle(progresion) jets( 4were clogged) started the car and it sounded ok. As I was checking in the trunk for fuel leaks I felt the fuel pump and it was hot. Then I checked the fuel pressure at the regulator and it was 3 pounds . Checked both fuel filters and cleaned , blew air in all lines to check for restrictions and everything ok. Mounted another holly red fuel pump and ran for 10 minutes and it was hot to the touch also and fuel pressure would not go above 3 pounds. I presume pressure should be 6 to 9 pounds ? Anyone have any opions? Thanks Paul What pressures would you run ? Yhanks Paul |
slivel |
Aug 4 2014, 10:24 AM
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#5
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Old car....... older driver Group: Members Posts: 508 Joined: 10-July 04 From: San Diego Member No.: 2,332 Region Association: Southern California |
Iam running a holly red fuel pump on my 914-6 race car . It's a 2.2 with 40mm webers.I had hesitation problems after about 4 laps at pittsburgh grand prix. I cleaned the idle(progresion) jets( 4were clogged) started the car and it sounded ok. As I was checking in the trunk for fuel leaks I felt the fuel pump and it was hot. Then I checked the fuel pressure at the regulator and it was 3 pounds . Checked both fuel filters and cleaned , blew air in all lines to check for restrictions and everything ok. Mounted another holly red fuel pump and ran for 10 minutes and it was hot to the touch also and fuel pressure would not go above 3 pounds. I presume pressure should be 6 to 9 pounds ? Anyone have any opions? Thanks Paul What pressures would you run ? Yhanks Paul I run A Holley Blue and two regulators. The first regulator is a Holley 4.5 - 9 psi bypass type located near the pump and I return the unused fuel to the tank to keep it and the pump cool. The second regulator is in the engine compartment and is a Holley 1 - 4 psi non-bypass type that is set to 3.5 psi. This works well with my Webber 46's. Steve |
J P Stein |
Aug 4 2014, 11:00 AM
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#6
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I put a Facet pump in with no regulator. (noisy sumbitch)....fully expecting it to be a temporary thing. It was still there when I sold the car 12 years later.
Bog simple is good.....cheep too. 40 mm Webers with 4.5 psi of pressure with no problems. The pic is about 8 years into its life. |
ETMracing |
Aug 11 2014, 03:05 PM
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#7
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Newbie Group: Members Posts: 37 Joined: 22-August 13 From: frederick md Member No.: 16,288 Region Association: MidAtlantic Region |
What do you all use for thread sealant on fuel items?
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stownsen914 |
Aug 11 2014, 03:35 PM
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#8
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
What do you all use for thread sealant on fuel items? I just did some research on this after having an issue with a pressure regulator not sealing properly at the NPT fittings. I ended up choosing a thread sealant that Earl's sells. Some said that teflon tape and liquid sealant were OK, others said not. The Earl's stuff is meant for sealing fittings for fuel and oil applications on car plumbing, so I figured their stuff should be a good choice. |
campbellcj |
Aug 11 2014, 09:05 PM
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#9
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I can't Re Member Group: Members Posts: 4,543 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
I can't remember if I used the special sealant goo or regular teflon tape...but years later I have zero leaks. I'm running a Holley Red with no regulator. I used to have a regulator and gauge but my mechanic/builder removed it saying it was unnecessary with this pump and my setup. This is the low pressure (6-7psi) pump designed for carbs; with the Blue pump (11psi) you definitely need a regulator, or a different pump.
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jd74914 |
Aug 12 2014, 07:41 AM
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#10
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
I've used both regular teflon tape and pipe dope; both work fine. I'm a bigger fan of teflon tape because it's easier to take off the fittings if you are reusing them and is dry at application.
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brant |
Aug 12 2014, 08:52 AM
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#11
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914 Wizard Group: Members Posts: 11,620 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
AN fittings seal on their matting face
BY DESIGN no tape necessary |
J P Stein |
Aug 12 2014, 09:12 PM
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#12
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
IIRC, I had 3-4 NPT connections....the rest were AN. I used tape on the NPTs but was damn careful not the let any teflon hang over into the joint. The fuel block was downstream of the filter.
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campbellcj |
Aug 12 2014, 10:23 PM
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#13
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I can't Re Member Group: Members Posts: 4,543 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
Likewise - tape only on the pipe threads. Brant is right about AN fittings. Good ones fit precisely and don't leak without any tape or goo.
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ChrisFoley |
Aug 13 2014, 07:55 AM
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#14
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I am Tangerine Racing Group: Members Posts: 7,922 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
I generally avoid using teflon tape on oil and fuel fittings due to the possibility of getting some into the line.
I use Permatex pipe sealant where I don't use tape. |
ETMracing |
Aug 14 2014, 02:43 PM
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#15
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Newbie Group: Members Posts: 37 Joined: 22-August 13 From: frederick md Member No.: 16,288 Region Association: MidAtlantic Region |
Sounds good to me, I knew the AN lines should seal tight but I have not switched over to them yet..just use NPT now. I will try some purposed Sealant again but if not I might work with some Tape.
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