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compression check with motor outside the car?

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Old 03-02-2005, 07:56 PM
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Default compression check with motor outside the car?

I want to know how to do a compression check with the motor out?
Old 03-02-2005, 08:06 PM
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Default Re: compression check with motor outside the car? (Spence)

i assuming the same as in the car but u have to turn the crank by hand ?
Old 03-02-2005, 08:13 PM
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Default Re: compression check with motor outside the car? (eK9aT10pSi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eK9aT10pSi &raquo;</TD></TR><TR><TD CLASS="quote">i assuming the same as in the car but u have to turn the crank by hand ?</TD></TR></TABLE>

Yup unless if you could hotwire the starter (not as easy as it sounds).
Old 03-02-2005, 08:14 PM
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how easy is it to turn the crank by hand?
Old 03-02-2005, 08:19 PM
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Default Re: (Spence)

uhhh, i dont think that you can turn the crank by hand fast enough to build up enough compression. im almost certain you need to hotwire it. someone on here knows what two wires you put together. i read it before on here....
Old 03-02-2005, 08:36 PM
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Really i was told that you can do a compression check by hand?
Old 03-02-2005, 08:37 PM
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Default Re: (Spence)

u prob can but it might take like an hour per cylinder. cranking by hand takes hella long
Old 03-02-2005, 08:39 PM
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Default Re: (93blkej1)

You could make compression with your hand. Just sucks because its going to be a very nice long work out. Breaker bar and long pipe would be your best friend.

Compression doesnt leave until you let it leave (AKA take out the compression testor)
Old 03-02-2005, 08:49 PM
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Default Re: (Luserkid)

or an impact
Old 03-02-2005, 08:50 PM
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Default Re: (93blkej1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93blkej1 &raquo;</TD></TR><TR><TD CLASS="quote">or an impact </TD></TR></TABLE>

No because the impact will knock the crank pully bolt off. lol.
Old 03-02-2005, 08:57 PM
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you could use a crank pulley holder, the hexagon shape wrench that hold the crank pulley when you take the crank bolt off, that way you don't have to worry about losening the bolt
Old 03-02-2005, 09:07 PM
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Default Re: compression check with motor outside the car? (Spence)

very easy to wire the starter outside of the car!.. Assuming the tranny is bolted on.
all you have to do is ground the motor to the battery. Run a 6 gauge wire to the BIG post on the starter. All you do now is use a small jumper wire to the small male connecter on the stater from the big 6 gauge post. That would be the other small post.. It should be a spade connecter type.
Old 03-03-2005, 11:47 AM
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Default Re: compression check with motor outside the car? (Jr.915)

its really not that hard to turn the crank with just even a regular half inch socket wrench, i used to do it once a week when my motor used to sit in my garage to keep it lubed up
Old 03-03-2005, 11:52 AM
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Default Re: compression check with motor outside the car? (civichatch6989)

You know your not gonna get an accurate reading, its not even worth it to try. The engine has to be warmed up when you do a compression test, and you can't do that while the engine is out.
Old 03-05-2005, 03:39 PM
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Default Re: compression check with motor outside the car? (90blackcrx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">You know your not gonna get an accurate reading, its not even worth it to try. The engine has to be warmed up when you do a compression test, and you can't do that while the engine is out.</TD></TR></TABLE>

Heat your motor with a torch, jk
Old 03-05-2005, 04:13 PM
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Default Re: compression check with motor outside the car? (civichatch6989)

Pointless, don't waste your time.

To do a dry comp test you'll need to have the starter bolted on and hook a battery to the solenoid.

This will still be a waste of time. The engine is cold.
Old 03-05-2005, 06:13 PM
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Default Re: compression check with motor outside the car? (Nameless RB26)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nameless RB26 &raquo;</TD></TR><TR><TD CLASS="quote">Pointless, don't waste your time.

To do a dry comp test you'll need to have the starter bolted on and hook a battery to the solenoid.

This will still be a waste of time. The engine is cold.</TD></TR></TABLE>


I agree
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