When you say more detail's about my set up what are you exactly looking for me to explain ? I bought the 87 GN from my uncle with 133,765 miles. It seems to be leaking oil in the cat or some where next to the cat, have yet to get under it. I definitely need to change the spark plugs and fule lines. And when it's idling there''s ticking some where under the alternator, also when it's idling the rpms are at 2,000.
Instead of us asking you to list your modifications done to the car, how about I ask you if the following modifications have already been done to the car, or if you know anything about the parts I'm asking about (have they been replaced, are they aftermarket versions, etc)
1) What type of downpipe does the car have?
2) What type of headers does the car have?
3) Has the engine ever been taken out of the car?
4) Has the engine ever had work done to it, such as the timing chain replaced, the camshaft replaced, or any rotating assembly parts replaced?
5) What type of MAF sensor does the car have? What type of MAF piping does it have?
6) Is the engine currently very dirty from years of either sitting or neglect?
Give Tyler a call at boostedrps. He's honest and is knowledgeable far beyond his years.
I dunno about that man...I just try to be honest and if I don't know the answer, I try to find it out.. but thank you for the vote of confidence!
Take off the intake pipe. Grab the nut holding the impeller on and wiggle it. It should have slight play. If it moves a lot and scrapes the housing then it's done. If it blows blue smoke out the exhaust then the seals are probably blown. Ok, some details but how about a list of mods, chip, repairs, rebuilds, previous known issues, etc. What is your mechanical experience?
Exactly what Pronto said ^^^
OP- if you are getting
white smoke you may have a head gasket blown, or a leak in the intake valley pan gasket. If there has been any work on the intake manifold, and the manifold was removed and put back, it
may not have the gasket installed correctly and there
may be a leak around the coolant ports. Not saying this is for sure the cause, just that it
might be.
He said white smoke from the exhaust. Seems like a new turbo should be the last thing on his list
We are
not trying to push him towards a turbo. We just want some information to determine if the turbo is blown, or if there are some blown seals in the turbo.
There very well be multiple issues with this car and/or multiple leaks. We are trying to address and help the OP with one area at a time. With the white smoke I think there may be an intake valley pan gasket leak, or a head gasket.
133k miles if unrebuilt will need plenty of work including timing set and possible cam. Oil drip is probably the valve covers.
Are you saying the cam because it may have flat lobes?
I agree with the oil drip on the headers most likely being valve cover leaks.
OP- I would suggest cleaning of the valve covers all around the gasket area, underneath the VC's on the cylinder head, and anywhere else that you currently see oil.
The easiest way to determine where the oil leak is coming from is to start with a clean engine so that when it does leak, you will know exactly where it is coming from.