is this a big deal?

[LimoBob]

I looked at (potential purchase) an 88 325i w/ 130k that had some ticking/tapping noise coming the top end area after start up and idle. After about a 10 min test drive the noise was gone, eng sounded fine. lifters? exhaust leak? a rod noise wouldn't go away would it? the car apparently is no longer a daily driver (maybe driven once a wk). How concerned should I be? Overall, you can tell the 1 owner car has been well taken care of. Before I purchase it, i'm having the noise diagnosed by a tech. Any thoughts?

[jlevie]

The valves probably just need adjusting. A bad rod bearing will make more noise on a hot engine (thinner oil). Piston slap will be worse when cold and may go away when the engine is hot, but at 130k that is unlikely.

[LimoBob]

thanks jlevie! a valve adjustment remedy would be great

[bangn]

just your typical m20 ticking valvetrain. If its loud it will need a valve adjustment but chances are the ramps on the rockers are worn. Nothn thats going to go bang

[LimoBob]

So I'm being told by mechanics that my valves are hydraulic and not adjustable; I'm confused!

[dnguyen1963]

'88 325i does not have hydraulic valves. Get a different mechanic.

[LimoBob]

I hear ya.

[gtdragon980]

Lol tell them to go waffle themselves! Go to a BMW specialist if you want to have them do a good job!

[Pootis]

Remove your white glove and slap that mechanic across the face

[TobyB]

exhaust leaks 'tick', too, and get better when hot...

t

[bangn]

lol next he will say your pushrods are worn

[Thehemiman]

lol next he will say your pushrods are worn

If this is the case I'd suggest the lsx pushrod retrofit.