Fuel Smell in the engine bay |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Fuel Smell in the engine bay |
stickyfingers |
Apr 7 2024, 02:43 PM
Post
#1
|
Member Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada |
|
nditiz1 |
Apr 7 2024, 03:09 PM
Post
#2
|
Senior Member Group: Members Posts: 1,202 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region |
A pic zoomed out would help, but it looks like a dual oil pressure setup. That is your idiot light and one for number readout in the cockpit. That's oil that dripped onto the tin. Do you have carbs or fuel injection?
|
stickyfingers |
Apr 7 2024, 03:18 PM
Post
#3
|
Member Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada |
A pic zoomed out would help, but it looks like a dual oil pressure setup. That is your idiot light and one for number readout in the cockpit. That's oil that dripped onto the tin. Do you have carbs or fuel injection? The vehicle is fuel injected. It is oil for sure when I wiped it. I'm not certain where it's coming from (likely the brass fittings right above). Here some zoomed out pictures. Appreciate the assistance. is the above red circled part the oil pressure switch? I've heard these usually leak. And, if that is the case, is this the correct part from 914Rubber? https://914rubber.com/oil-pressure-switch or this one from autolanta: https://www.autoatlanta.com/Porsche-Oil-Pre...021919081D.html Thank you! |
FlacaProductions |
Apr 7 2024, 03:39 PM
Post
#4
|
Senior Member Group: Members Posts: 1,737 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
wipe it all down, get it dry and then put an eye on it to figure out where it's truly coming from. It's one of those connections. Might be enough to just tighten up the offending one or may need to take it apart, clean and re-seal. I have had good luck with Permatex 80019.
|
fiacra |
Apr 7 2024, 03:50 PM
Post
#5
|
Person.Woman.Man.Camera.TV Group: Members Posts: 409 Joined: 1-March 19 From: East Bay Region - California Member No.: 22,920 Region Association: Northern California |
Looks like you have two separate problems: a small oil leak that you seem to be on top of and should be fixed soon (it has already been said, but wipe it down, tighten the fittings, and see if that solves it), and a fuel leak that you really have to figure out before you have an engine fire. In a FI car you should not have a strong odor of gas in the engine bay. Check all the hoses, all the clamps, and the injector seals. Find and fix the fuel leak before you worry about anything else. That should be your top priority. The oil leak is lower down on the list.
|
wonkipop |
Apr 7 2024, 04:39 PM
Post
#6
|
Advanced Member Group: Members Posts: 4,624 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
if the fuel pump is still in original position under engine rhs then check under there too.
could be a fuel leak in one of the hoses going in or out of fuel pump. will result in fuel smell in engine bay. |
rjames |
Apr 7 2024, 04:59 PM
Post
#7
|
I'm made of metal Group: Members Posts: 4,111 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
How old are the fuel lines? If they haven’t been changed somewhat recently I’d just replace them and verify correct FI clamps.
An injector could be leaking, too. |
FlacaProductions |
Apr 7 2024, 05:36 PM
Post
#8
|
Senior Member Group: Members Posts: 1,737 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
If this is the first time it's been out in a while ie: springtime, be sure to check the tins under the injectors. The seals can dry out over the winter if it's been in storage and if they're leaking it'll pool/collect right there. First few times I have mine out in the spring, I start it and let it sit in the drive (not in the garage) for a few minutes and put an eye on that area making sure no injector/injector seal leaks.
|
emerygt350 |
Apr 7 2024, 06:12 PM
Post
#9
|
Advanced Member Group: Members Posts: 2,409 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
What flaca said. Old vehicle and all that. What a fun little dual oil circuit you have there. Mine is a dual pole but stuck under the front coil mount. I think it looks cleaner, but I like the fact yours still has the normal dummy light sensor in the chain, and it may not fit my way. Yours does introduce more leak points but they are all easily fixable.
The fuel smell is a worry of course. Work your way from the fuel line all through the injectors and regulator and pump. Don't drive it till you find it. Ignore the strange wires, you can see the dual pole attached to the forward coil mount. The zip tie is at least 5 HP. |
stickyfingers |
Apr 7 2024, 08:30 PM
Post
#10
|
Member Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada |
What flaca said. Old vehicle and all that. What a fun little dual oil circuit you have there. Mine is a dual pole but stuck under the front coil mount. I think it looks cleaner, but I like the fact yours still has the normal dummy light sensor in the chain, and it may not fit my way. Yours does introduce more leak points but they are all easily fixable. The fuel smell is a worry of course. Work your way from the fuel line all through the injectors and regulator and pump. Don't drive it till you find it. Ignore the strange wires, you can see the dual pole attached to the forward coil mount. The zip tie is at least 5 HP. Thanks for everyone's suggestions. I had a vapor issue with the fuel tank which was corrected by getting a new fuel cap. I want to say that my smell is a mixture of fuel/oil burning. I have a lift at home and I've looked over everything else underneath. Had it even looked over by a mechanic - no fuel issue he mentioned last year. Previous owner had replaced the fuel pump, fuel injectors, fuel filter vacuum lines, spark plugs and ignition wires. I have tightened the pressure switch. Will run it again tomorrow to see if the leak comes back. |
Mikey914 |
Apr 8 2024, 08:49 AM
Post
#11
|
The rubber man Group: Members Posts: 12,711 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Check the hoses again in the fuel circuit. Sometimes the wrong hose gets used. If it's not high pressure on every piece, you may have a problem introduced from the replacement.
|
stickyfingers |
Apr 8 2024, 09:25 AM
Post
#12
|
Member Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada |
|
Lo-Fi Version | Time is now: 26th September 2024 - 06:21 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |