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Re: Compression method suggestions, test procedure step by step



Avi wrote:
> 
> Here is what you do:
> 
> remove timing belt from engine
> 
> turn ignition on (extremely important to have a batt. in a good state of
> charge, preferably connected to an 100AMP charger)
> 
> attempt to start car (remember car will not start, since you took the
> timing belt off..) keep cranking for 30 seconds

Whoa!  DO NOT DO THIS!! You WILL destroy the valves!!!

> if  a LOT of noise is heard (mechanical), car engine has higher compression
> and engine is interference engine (almost all engines are nowadays)
> The above method is a proven method (NOT, BTDT......),

I bet!

The only acceptable compression test would be:

1. Fully charge battery
2. Remove ALL spark plugs
3. Connect central Hi Tension distributor wire to chassis
4. Insert compression tester in Cyl 1. 
5. Crank engine until the needle stops jumping. Read value.
6. Proceed to the Cyl 2.
etc.

Avi, there are people on the list who have no clue as to how the engine works. 
They might follow one of the above advice and trash the engine to the tune of 5 
grand. Please think about what you're are posting here!

Regards,

-- 
Igor Kessel
'89 200TQ - 18psi (TAP)
'98 A4TQ - on order...again. For the third time and counting.
Philadelphia, PA
USA