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Checking compression

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Old Jul 14, 2006 | 10:35 AM
  #1  
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abarone300
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Default Checking compression

Hi guys, wanted to ask if I would be able to check the compression with both of my cams off. I got a 1.6 LT dual oh VTEC/ '95 Del Sol

I'm removing the head to check if any of my valves are bent after the timing belt broke.

I did try to install a new belt, and the motor did run afterwords, but not too good though...

Had to advance the timing all the way, to be able to drive the car. I suspect I have low compression because of bent valves.

Also, do you guys know a way to get to the lower intake manifold retaing nuts (can't even get my hand in there to check!) Thanks

Aldo
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Old Jul 14, 2006 | 10:39 AM
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Rachel Bilson
 
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Originally Posted by abarone300
Hi guys, wanted to ask if I would be able to check the compression with both of my cams off. I got a 1.6 LT dual oh VTEC/ '95 Del Sol

Thanks

Aldo
No
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Old Jul 14, 2006 | 12:20 PM
  #3  
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abarone300
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Default Thanks!

With both camshafts out, aren't all four valves on all combustion chambers closed?

If I where to remove the all four spark plugs, and alternatively hook up the compression gauge to each chamber, shouldn't I be able to measure compression when the piston is on TDC? Thanks

Aldo
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Old Jul 14, 2006 | 12:28 PM
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F22B Prelude
Rachel Bilson
 
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You can't check compression without a corresponding compression stroke on the CAM....so you'll need to put them back on and test it.....If the valves are visibly bent then there is no reason to check compression
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Old Jul 14, 2006 | 12:34 PM
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abarone300
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Default OK, Thanks

Ok F22B Prelude, I'll just remove the head then! Thanks
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