Crank Seal Oil Leak?

[RavenX]

Hey guys been trying to track down this stubborn oil leak I've had for years and only until recently has it gotten worse. I think the crank seal needs to be replaced. I had a issue with the oil pump sprocket nut coming loose and making a nice oil show. I fixed that but now the mystery oil leak has gotten worse. It usually was 2-3 drops and now its way more than that. In the pics am about to post the timing belt has no oil on it and neither does the oil pump sprocket only underneath the crank sprocket gear do u see oil. Also the car doesn't leak the oil until the car is cooling down.

The other thing is this is a topline oil pump. Been running for 30k miles on this built motor. Since I am pretty sure I gotta replace that seal I was thinking of replacing all the gaskets and timing components while I was at it. This could give me the chance of putting a oem front cover as well. What do you guys think I should do?

Edit: In case anyone wonders, yes I do have one balance shaft still in the motor which is not spinning. Never had issues with it but if I do get a new oem cover I plan on taking it out.

 

[1990AWD]

It could either the oil pump or crank seal. I'm betting on crank, but either way, you gotta take off the timing belt and take a closer look.

 

[ziggo0]

Could also be that castle plug oring. You can simply get a front case/"timing cover" gasket set - comes with everything you need. Word of warning, if you remove that castle plug - be very gentle re-installing it - it can and will crack your front case if tightened to much.

 

[RavenX]

Am betting on the crank seal as well. My plan is to replace everything anyways. Would you guys stick with the topline pump then? Appreciate the responses. I guess I better start ordering the things I need.

Edit: As for the gasket set I saw extremepsi has the felpro stuff with everything I need. Would it better to just order everything OEM?

 

[ziggo0]

As far as Topline vs. OEM oil pump - you simply can't go wrong with the OEM pump. Topline users either have had great success and no problems - or complete failure right away (a few miles to a few thousand). I figure for something as expensive and vital like your engine - why risk it. I've used the Felpro gasket set with great success many times, they don't use cheap gasket material that is paper thin. The OEM gaskets work just as well.

 

[RavenX]

Well I mean I've had great success with mine for 30,000 miles. But am going to change it out for a OEM piece. I have already pieced all the parts I need and its going to run me about $750. OUCH. Sucks but it had to be done so I can have piece of mind finally.