[Tim603]

So my car is just over 140k and my question is when should i consider getting a timing job done? I also may be trading the car in next summer and don't want to sink a bunch of money into it just to trade it in.

What are your guys thoughts on this?

[tc535i]

chains will go well over 200, if you're really concerned you could change the tensioner

if you don't have any chain slap I wouldn't worry tho

[Tim603]

Originally Posted by tc535i

chains will go well over 200, if you're really concerned you could change the tensioner

if you don't have any chain slap I wouldn't worry tho

how would I know if I had chain slap? also if I were in there replacing the tensioner wouldnt it make sense to just replace the chain too? I dont know too much about timing so I appreciate the help

[tc535i]

Originally Posted by Tim603

how would I know if I had chain slap? also if I were in there replacing the tensioner wouldnt it make sense to just replace the chain too? I dont know too much about timing so I appreciate the help

tensioner is inserted thru the side of the engine. to replace the chain, the front cover needs to come off. 1/2 hr vs 10 hrs.

chain slap would make a knocking noise in your engine when it revs up

[Tim603]

Originally Posted by tc535i

tensioner is inserted thru the side of the engine. to replace the chain, the front cover needs to come off. 1/2 hr vs 10 hrs.

chain slap would make a knocking noise in your engine when it revs up

gotcha, yeah I dont hear any chain slap so I should be good. I think I may only have the car for another 10-15k miles so hopefully I will be fine.

My main concern is every once in a while my friends tell me they see a small puff of bluish smoke coming out of exhaust when i get on it. Im thinking my valve seals are starting to wear. Think I should be concerned about this?

Dont think I want to rebuild the head if I only plan on keeping the car for another 10k

thanks

[tc535i]

valve stem seals will blow blue smoke on startup, not when driving around

I'd look into turbo seals or a bad pcv valve

[Tim603]

Originally Posted by tc535i

valve stem seals will blow blue smoke on startup, not when driving around

I'd look into turbo seals or a bad pcv valve

I have a NA car....could be blowby on the rings maybe? Im not entirely sure how the pcv system works on my car

[tc535i]

sorry, forgot to check

is it when you floor it? if the car's warm, it could just be running a little rich under full throttle, are you tuned or stock ecu?

[Tim603]

Originally Posted by tc535i

sorry, forgot to check

is it when you floor it? if the car's warm, it could just be running a little rich under full throttle, are you tuned or stock ecu?

Yeah its when I floor it and I do have a custom tune, thats what I thought but my friend said it was bluish so that leads me to believe its blowby and not excess fuel burning off. Its only every once in a while and its only a little bit of a blue puff

[tc535i]

highly unlikely that you'd have ring wear at your mileage without severely neglecting oil changes etc, but I guess it's possible?

[Tim603]

Originally Posted by tc535i

highly unlikely that you'd have ring wear at your mileage without severely neglecting oil changes etc, but I guess it's possible?

hmm interesting, I did buy the car at 74k so I guess its possible but its only every once in a while and now that i think about it, it is shortly after I start the car so its probably valve seals

[Pilot a330]

Anybody help. Mine is a 318D built June 09 should I be worried or had BMW carried out a modification around this time. Also with my engine serial number will BMW advise that I am in the clear with a modified chain.