I am in the process of resurrecting a 1986 325e coupe from the dead. No interior and no usable engine and transmission. Here's my problem:
I bought a known good 1989 325 I engine (M20b25) and put it in. before I installed it, I pulled the head and sent it to a shop to have the valves ground. (It all looked good, I just wanted a fresh top end.) The shop told me that all was well, except that it was warped and they had to skim .010" off the head to get it flat. (The head gasket was not leaking.)
I put the engine back together and installed it.
After sorting out a few minor things, I got it running. The only problem is that it has a ticking sound that sounds (to me) exactly like a valve with too much valve clearance. I've set the valves 4 times on this thing and none of the valves have, or had, too much clearance.
The ticking sound goes away after the engine is warmed up.
Here are today's questions:
1.) Can I take the valve cover off of this engine and run it at idle? (I'd like to see if there is anything visual going on.)
2.) Anybody got an idea what is causing the ticking sound?
Thanks for everyone's help.
I bought a known good 1989 325 I engine (M20b25) and put it in. before I installed it, I pulled the head and sent it to a shop to have the valves ground. (It all looked good, I just wanted a fresh top end.) The shop told me that all was well, except that it was warped and they had to skim .010" off the head to get it flat. (The head gasket was not leaking.)
I put the engine back together and installed it.
After sorting out a few minor things, I got it running. The only problem is that it has a ticking sound that sounds (to me) exactly like a valve with too much valve clearance. I've set the valves 4 times on this thing and none of the valves have, or had, too much clearance.
The ticking sound goes away after the engine is warmed up.
Here are today's questions:
1.) Can I take the valve cover off of this engine and run it at idle? (I'd like to see if there is anything visual going on.)
2.) Anybody got an idea what is causing the ticking sound?
Thanks for everyone's help.
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