Hi fellow Z owners,cambelt on my car is covered in oil,noticed this when I had CAS removed it looks bad,engine oil everywhere, I suspect front crank seal.

I looked in 300 zx manual and it says oil pump needs to come off to replace it,also engine sump ??(to remove oil pump) so :cambelt,sump,oil pump got come off to replace oil seal?

yep that's one option but the other can be done with sump/pump in place ..

but that's the least of your problem the main crack sprocket will be rusted/stuck on

we normally have to cut/crack it off when rebuilding ..

 

u sure its not the cam seals that is leaking ?

I'm not sure at this point,everything is cover in oil and it drips on the floor when engine is running,I have to get it stripped to see,are camshaft seals common to leak oil?do you know where I can get this seals?

yeah the cam ones leak all the time ...

 

u ave a few options on the seals

 

Nissan Main Dealer

MIJ Suppliers on the forum

or local bearing and seal Dealers

my money is on a leaking inlet pully (rear hub) iff it drips while running

I've rang dealer today,6 weeks waiting for crank seal,camshaft seals available in stock 7.50 each,I really want to do whole lot,cambelt needs doing anyway,thanks for advice will try to get seals from here or somewhere locally

if your not sure on how to do the job .. get your self booked in to zedworld .. not to far from you

can you not do the crank seal in situ by driving a self tapper into it and pulling it out?

I have covered this subject a few times (links below) the lower crank seal could be an issue but more likely higher up, a strip out is required to determine where the issue is, take a look at some of the pics to see if your confident, if not as Mark said get it booked in.

 

Jeff TT

 

 

 

http://www.300zx.co.uk/forums/showthread.php?170590-Engine-oil-leak-look-for-s&highlight=cam+end+seals

 

 

http://www.300zx.co.uk/forums/showthread.php?146525-Oil-leaks&highlight=cam+end+seals

 

 

http://www.300zx.co.uk/forums/showthread.php?155569-Wet-oil-cambelt-covers-waring!&highlight=cam+end+seals

thanks Jeff

Very helpful