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08-31-2007, 09:56 PM
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#1 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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New engine running bad
I just got done putting a stock 350 crate motor in my truck and I started it up. It is reving really high and the oil pressure gauge goes thru the roof. The only upgrade it has is the HEI distributor. I am wondering what I can do to stop the engine from reving so high. I don't have a tach yet so I don't know what the RPMs are at. It is almost like I have my foot on the gas and I am trying to pass somebody on the freeway. Any ideas??
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08-31-2007, 10:08 PM
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#2 |
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Lemme show you something!!
Join Date: Apr 2007
Location: St.Helens, OR.
Posts: 876
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Re: New engine running bad
Is it a new carb as well? If so, double check the idle speed adjustment. Also check the timing- too much advance will boost up the rev's. Check throttle linkage to make sure it's not hung up somewhere.
__________________
'67 CST-10 LWB ("Crusty") SOLD '67 GMC SWB ("Murdock") 2000 K1500 Suburban ("Betty") '95 BMW 325i ("Joy") |
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08-31-2007, 10:18 PM
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#3 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: New engine running bad
What kind of carb? What kind of gas feed linkage?
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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08-31-2007, 10:18 PM
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#4 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: New engine running bad
I backed the idle speed screw off.....nothing happened. Linkage isn't stuck...guess timing is next.
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08-31-2007, 10:20 PM
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#5 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: New engine running bad
Carb is a quadra jet...not sure about the linkage but I have a regular pump nothing special.
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08-31-2007, 10:28 PM
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#6 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: New engine running bad
Is carb new or off your old motor? Also check your fast idle screw.
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer Last edited by jhow66; 08-31-2007 at 10:29 PM. |
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08-31-2007, 11:10 PM
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#7 |
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Registered User
Join Date: Feb 2006
Location: Oklahoma City
Posts: 588
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Re: New engine running bad
What about a vacuum leak?
__________________
1970 Chevy C10 "Under Construction"  2002 Chevy S10 V6 
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08-31-2007, 11:28 PM
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#8 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: New engine running bad
Carb is new to me but not a new one
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08-31-2007, 11:29 PM
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#9 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: New engine running bad
All vaccum lines are new and there are no open holes........Going to check the timing more later.....
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09-01-2007, 12:00 AM
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#10 | |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: New engine running bad
Quote:
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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09-04-2007, 06:05 AM
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#11 |
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Registered User
Join Date: Feb 2006
Location: Gilbert, Az
Posts: 180
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Re: New engine running bad
Just wanted everyone to know that I found the problem this weekened. I was missing the sping that holds the throttle forward on the right hand side, so when I stepped on the gas the throttle would not return to the closed position like it should. Thanks for all the support and knowledge. It is running good for now.
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