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Old 11-14-2003, 09:32 PM   #4 (permalink)
Mettler
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Location: NZ
Quote:
Originally posted by gal
I have a 88 Ford Sierra which makes clunking noises.. I'ts European, so I guess you're not familiar with the engine, but I've heard this noise from other Sierras this age. It sounds like there is one clunk per revolution, althoug I can't be sure.

I've adjusted the valves, but the sound is still there. I noticed rather heavy wear on the cam, maybe that's it? I haven't even considered changing the cam though.. seems complicated to get the timing right when assembling. And the old piece of junk isn't worth taking to a repair shop.
Is your engine the 2.5 V6 or the 2.0 inline 4 ? We have Sierras in New Zealand you know.

It's more than likely that a cam bearing/bearing journal has worn out, which explains both the clunking noise and the wear on the camshaft. The shaft's obviously now got a bit of play which it shouldn't have. That problem's going to get worse and worse. If the engine is overhead cam, it probably wouldn't be hard to replace the camshaft/shafts doing it... unless the wear is on the bearing surface itself.

It may end up being more cost effective to buy a replacement head, it's easy enough install by yourself using a workshop manual too.
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