3 soor cosworth timing
Hi a friend of mine has had a timing belt done on a 3 door, the engine now sounds like its got a rattle on the tappets any suggestions?
The engine didn't rattle before belt change! any help / advice would be great
thanks
The engine didn't rattle before belt change! any help / advice would be great
thanks
My advice. Don't drive it! Get someone else who knows how, to re-check timing. Tapping after belt change does not sound good and imo only comes from piston/valve contact.
disclaimer - i am not a mechanic.
disclaimer - i am not a mechanic.
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From: stockton on tees
There was a very common mistake back in the day to time a yb up on the bottom pulley timing marks, that is wrong it must be on the first peg after
very good chance this has happened
steve
very good chance this has happened
steve

As said, there is a notch before TDC, which indicates 16 BTDC (the ignition timing) hence NOT TDC!
As said, the timing is defiantly wrong, you only have to be a tooth out.
Do not start it again and check the timing, there is no excuse for a professional mechanic getting this wrong though!
At TDC, the rotor arm should be at 2 o'clock facing the scribe in the dizzy, the cam pulley arrows facing each other and the cam pulley lug should meet the metal on the block. There is also a half moon on the aux pulley.
Martin
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