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| wndsrfr |
Nov 29 2011, 02:00 PM
Post
#1
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,457 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region
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Running at VIR PCA DE event & had a major fuel leak on my 2316-4cyl with CB ITB's. See "Lifesaver" thread. So, I'm on the back straight chasing a Cadillac CTS-V & coming up the hill & it does a hiccup "pop"--hmmm whasis? Entering the rollercoaster session it's "pop-pop-pop..." so, fist out the window to pit & come in. Fuel pouring out from the driver's side #2 injector fuel rail. The rail had slipped up just enough to allow the o-ring to be bypassed and 43psi was hosing fuel into the engine compartment.
Cause--the single 8mm allen head bolt that holds the rail down against the fuel pressure had slowly worked loose enough to allow the o-ring to get bypassed. This mount (see the pics) with the center mounted bolt is perfectly set up to fail over time. The culprit is stiff fuel lines anchored to the body and engine vibration however small amplified by the length of the manifolds causes torque on the bolt. The lockwasher may actually exacerbate the problem. Remedy may be as simple as loctite, but I'm going to go for something more robust or at least some stiff wire hooks to be sure. Check yours now---not a pleasant experience! Attached image(s)
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banger Most oem fuel rails have a clip that keeps the inj... Nov 29 2011, 02:15 PM
hydroliftin
Most oem fuel rails have a clip that keeps the in... Nov 29 2011, 02:31 PM
damesandhotrods It’s been a few years since I opened an AC43, bu... Nov 29 2011, 02:30 PM
aircooledtechguy
It’s been a few years since I opened an AC43, b... Nov 29 2011, 08:33 PM
monkeyboy I'd also replace those two allens in the pictu... Nov 29 2011, 03:29 PM
ArtechnikA a 45º hose end instead of the 90 would help too..... Nov 30 2011, 05:48 AM
wndsrfr Ahhhh........confession is good for the soul ... Nov 30 2011, 08:23 AM
sean_v8_914 stiff line is too short and anchored to the body a... Dec 1 2011, 08:08 AM![]() ![]() |
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