Went to replace Fuel Injectors found the oil leak!
05-26-06, 09:15 PM
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Went to replace Fuel Injectors found the oil leak!
Story goes like this, Exhaust manifold glowing, (no boosting involved and running DP, so it wasn't the precat), and abnormal amounts of fuel in oil. Desiscion was made to replace injectors with cleaned and flow-tested ones from Witch Hunter.
Today I pulled the UIM. Looked down by the injectors and saw dark fluid moving as I shook the engine. Dipped a extension down there and came back as oil. I've had an oil leak on this car from the beginning, I've put it on the lift numerous times and could never pinpoint where it was coming from. Now I know.
Pulled the coils, rats nest and the ACV or what ever its called to get a clear shot at removing the fuel injectors. I also did this to find out where the oil leak was coming from.
Now here comes the questions, each oil injector has a vacuum nipple on it. Mine had no vacuum lines attached.
Is it possible for oil to leak from these nipples?
Where do I plumb the vac lines to?
The OMP lines don't appear to have any cracking and as of tonight I have not pulled the oil injectors to see if the washers are in place.
With reguards to the Fuel Injectors when I pulled the primaries, who ever rebuilt the engine before used grey gasket maker as the insulator for the injectors! And from what I can tell there are no mixing plates in the primaries as refered to in the 94 Workshop manual pg. C-81.
Just some added info, car is running non-seq but I am going back to sequential. Car had no hot start problems and other than the glowing manifold ran well.
Your insight and comments will be most appreciated.
Today I pulled the UIM. Looked down by the injectors and saw dark fluid moving as I shook the engine. Dipped a extension down there and came back as oil. I've had an oil leak on this car from the beginning, I've put it on the lift numerous times and could never pinpoint where it was coming from. Now I know.
Pulled the coils, rats nest and the ACV or what ever its called to get a clear shot at removing the fuel injectors. I also did this to find out where the oil leak was coming from.
Now here comes the questions, each oil injector has a vacuum nipple on it. Mine had no vacuum lines attached.
Is it possible for oil to leak from these nipples?
Where do I plumb the vac lines to?
The OMP lines don't appear to have any cracking and as of tonight I have not pulled the oil injectors to see if the washers are in place.
With reguards to the Fuel Injectors when I pulled the primaries, who ever rebuilt the engine before used grey gasket maker as the insulator for the injectors! And from what I can tell there are no mixing plates in the primaries as refered to in the 94 Workshop manual pg. C-81.
Just some added info, car is running non-seq but I am going back to sequential. Car had no hot start problems and other than the glowing manifold ran well.
Your insight and comments will be most appreciated.
05-26-06, 09:28 PM
#2
As for the oil injectors they rarely go bad but it does happen. They dont need a vaccum line to operate but they add more oil then they are sopose to. The lines connect to the rats nest some were not to sure off my head, check your vaccum line diagram and you will find were they go.
As for the fuel injectors, if I was you I would pull the fuel rail clean it, buy new insolaters, and diffusers. Then install the injectors and presure test them to make sure you have no leaks and put it back together. You dont have to run the diffusers but the help with fuel atomization when the engine is cold, other wise you could flood.
Hope this helps
As for the fuel injectors, if I was you I would pull the fuel rail clean it, buy new insolaters, and diffusers. Then install the injectors and presure test them to make sure you have no leaks and put it back together. You dont have to run the diffusers but the help with fuel atomization when the engine is cold, other wise you could flood.
Hope this helps
05-26-06, 09:49 PM
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I should have mentioned that the oil has pooled up on both side of the primaries on top of the engine.
Last edited by car hugger; 05-26-06 at 09:56 PM.
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