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is there a way to compression check a motor while its out of th car

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Old Jan 15, 2003 | 08:45 PM
  #1  
drvfast's Avatar
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Default is there a way to compression check a motor while its out of th car

say i went to a junkyard that has an b18c full swap is there a way i could compression check it before buying it thanks
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Old Jan 15, 2003 | 09:31 PM
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Kataku2K3's Avatar
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From: Gresham, Oregon, USA
Default Re: is there a way to compression check a motor while its out of th car (drvfast)

A compression test would be a little difficult since you would have to crank the motor by hand... however you could leakdown test it and it would give you more info than a compression test would on what kind of condition the motor is in... Peace
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Old Jan 15, 2003 | 09:52 PM
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TopNotchR's Avatar
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Default Re: is there a way to compression check a motor while its out of th car (Kataku2K3)

doesn't the leakdown test require compressed air?

it might be difficult to do that test when your at the junkyard.
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Old Jan 15, 2003 | 09:53 PM
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Default Re: is there a way to compression check a motor while its out of th car (Kataku2K3)

Actually if you had a car battery and hooked up a 4-6 gauge wire from the positive terminal on the battery to the post on the starter, ran a 16 gauge wire to the start solenoid, and run the ground on the tranny to the negative terminal on the battery, it would work. Just make sure you hold the throttle open and take out all of the plugs.
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Old Jan 15, 2003 | 10:08 PM
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Nameless RB26's Avatar
 
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From: WA
Default Re: is there a way to compression check a motor while its out of th car (turbohonda)

Actually if you had a car battery and hooked up a 4-6 gauge wire from the positive terminal on the battery to the post on the starter, ran a 16 gauge wire to the start solenoid, and run the ground on the tranny to the negative terminal on the battery, it would work. Just make sure you hold the throttle open and take out all of the plugs.
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Old Jan 15, 2003 | 10:41 PM
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irev210's Avatar
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From: Southern cali or boston
Default Re: is there a way to compression check a motor while its out of th car (Nameless)

yup
just make sure there is oil in the car
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