As warm as it can be-
the idea is to duplicate running conditions, more or less.
Yeah, the only people I know who routinely leakdown their engines
are racers- on a road car, especially a 'play' car like the roadster,
you might do it annually, maybe when you change your brake fluid!
One word of warning- drive the car for a few weeks before
doing a leakdown. A lot of little things can give you an erroneous reading
and freak you out, like a small flake of rust wedged in an exhaust valve.
And Graeme, I've found that if I get TDC (and BDC) exactly right, the engine
doesn't jump. What helps a lot is to wind up the pressure slowly with the
regulator. I've marked the crank pulley, and now it's just a matter of lining
up the marks and figuring out which cylinder is on the top of its compression
stroke.
Toby
-------------- Original message ----------------------
From: LJordan704@netscape.net
> Should the leak down test be done on a cold or warm engine? Is this a test
>most
> mechanics do or can do? Seems like a good test to routinely do.
> thanks,
> Linda
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