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01-21-2010, 02:08 PM
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#1 | |
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I built it
Join Date: Sep 2008
Location: Bakersfield ca
Posts: 744
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did a compression test
on my 454 and all the numbers are within 98 and 125. it seems kinda low to me? the cam is the "rv" cam so i wouldnt think it'd bleed it down much... im trying to chase everything down after runing a tank of watered down gas through it. the oil smells like gas and everything
 
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'72 k10 lwb 454, th400, 205, d44ft, 12b rear, 4in skyjacker, 35x12.5-15 superswampers, 4.56, blazer tank. painless wiring harness '98 dodge 3500 12v 5sp 4x4. the truck that actually runs Quote:
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01-21-2010, 05:42 PM
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#2 |
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Registered User
 Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,190
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Re: did a compression test
You might have a bad fuel pump letting gas get in the oil. Or it's running rich. The thinned down oil could be causing the low compression readings.
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01-21-2010, 07:39 PM
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#3 |
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283 Drama Queen
Join Date: Dec 2004
Location: Surf City, CA
Posts: 2,435
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Re: did a compression test
Get yourself a one-gallon plastic gas jug, hang it from the open hood, run a gas line down to the carburetor and prime the line - start that baby up and confirm that it's not the fuel pump first.
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For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise. |
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01-22-2010, 12:21 AM
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#4 | |
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I built it
Join Date: Sep 2008
Location: Bakersfield ca
Posts: 744
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Re: did a compression test
it'll still start but once its runing its... terrible to say the least. im going to redo the entire fuel system just cause i know that tank is rusty and im sure the lines between it and the pump are too. ive got a new fuel pump ready to go when everything else gets done. i just am wanting to make sure the engine isnt damaged. its still got the bad gas in it so i dont expect it to run to good yet. its still about 2-3 weeks from when i can start really workin on it
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'72 k10 lwb 454, th400, 205, d44ft, 12b rear, 4in skyjacker, 35x12.5-15 superswampers, 4.56, blazer tank. painless wiring harness '98 dodge 3500 12v 5sp 4x4. the truck that actually runs Quote:
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