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Valve cover gasket removal
After a few months of not driving my Crossfire I started it up and there is smoke coming from the engine bay so after some quick investigation I can see there oil has been dripping on the exhaust manifold. There is oil all on the outside of valve cover so I'm trying to get it off but ran into a small issue with a line that is blocking me from taking it completely off.
Anyone know what this line goes to and if its safe to unscrew? https://cimg6.ibsrv.net/gimg/www.cro...27bc7bf685.jpg Here is the video I watched on Youtube |
Re: Valve cover gasket removal
That is the fuel delivery line, it is normally under pressure ( about 55 PSI ) but the quantity will be small if you loosen it without removing the pressure.
You can do it either way, as is ( with pressure ), or remove the fuel pump fuse from the RCM while running. https://cimg5.ibsrv.net/gimg/www.cro...1816858920.jpg As you can see, the fuel pump fuse is the first blue one past the yellow one. |
Re: Valve cover gasket removal
Originally Posted by ala_xfire
(Post 920430)
That is the fuel delivery line, it is normally under pressure ( about 55 PSI ) but the quantity will be small if you loosen it without removing the pressure.
You can do it either way, as is ( with pressure ), or remove the fuel pump fuse from the RCM while running. https://cimg5.ibsrv.net/gimg/www.cro...1816858920.jpg As you can see, the fuel pump fuse is the first blue one past the yellow one. |
Re: Valve cover gasket removal
Originally Posted by flexfanatic
(Post 920432)
Thanks, I’ll get some shop rags to place around the hole and loosen it to relieve the pressure. Hopefully it won’t make to much of a mess. When you are ready to reinstall the fuel line connection, I would suggest using a Teflon pipe thread tape (once or twice around the threads) to assure that no leakage will take place after your valve cover sealing job has been completed. A slight leak may cause a fire.... Take care, Dennis DTMenace |
Re: Valve cover gasket removal
I never used any Teflon tape, but I DO put it back on and stuff paper towels around it.
I then start the car and let it run about two minutes. I then turn the engine off and take the paper towels off, making SURE they are DRY DRY DRY. No matter if you use tape or not, I'd do what I did above - like he said, any leaking of gas there and your car will probably be gone! Just my two cents.... |
Re: Valve cover gasket removal
Oh, and work on a COLD engine only. When you take the coupling off, you better have SEVERAL good rags to catch the fuel, the rail will drain into your rags - about 1/4 cup of fuel.
Make sure you protect both ends to prevent ANY contamination in the injectors - I wrapped both ends, again, in paper towels and taped them in place while working on the car. |
Re: Valve cover gasket removal
Teflon tape should only be used on pipe thread. That fitting don't appear to be a pipe fitting. It most likely is an O-ring fitting since it is for fuel delivery.
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Re: Valve cover gasket removal
Not to mention that a quick search reveals that Teflon tape is not always gasoline resistant, meaning that if you are not careful you might be now getting little pieces of Teflon in your fuel injectors. And an even worse possibility: The tape might seal a leaky connection long enough for you to think everything is OK, and then start leaking later on when the Teflon degrades - leading to the very thing you thought to prevent.
I am not trying to antagonize here, just pointing out the possible pitfalls of fixing something that aint broke. |
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