Hi List,
Can anyone enlighten me on the reason for adjusting the tappets on the
2000/2500 engine whilst cold. Do the clearances increase or decrease with a
hot, all iron engine?
Seems to me you want the correct clearance when the engine is hot, so why
not adjust them when hot? It's a lot easier and I think quicker, checking
clearances with a feeler gauge on a running engine (and therefore hot) than
a stationary, cold one.
On a running engine, it's easier to get the same feel for 'tightness' going
quickly from one tappet to the next. On a stationary engine, it's hard to
remember, once you've manually turned the engine over to the next tappet,
how tight/loose you had the previous one/s. It means a lot of starting and
stopping of the engine to do the adjustments, but IMHO you can get the gap
much more consistent this way.
What difference in clearance should be allowed for adjusting them on a hot
engine?
Any comments please?
Bob Hutton
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