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03-28-2011, 11:37 PM
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#1 |
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Registered User
Join Date: Jul 2009
Location: Tulare,CA
Posts: 87
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sbc break in
Well finally got my motor all ready to break in so started it running fine but after about 4 min at 2000rpms my temp gauge isnt going up so i shut it down thinkin sonethings wrong. my headers are red hot so shouldnt my temp gauge be reading something i have a new 4 core and dual fans i just had them going full blast what do you think?
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03-29-2011, 11:55 AM
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#2 |
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Registered User
Join Date: Aug 2010
Location: Redding California
Posts: 72
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Re: sbc break in
If your headers are glowing I would say advance the timing. I did that once because I was trying to do it alone and I didnt want to stop on the break in and lose the cam. I got out and looked at the motor for a second and the headers were so red it looked almost transparent. start it up rev it to about 2500-3000 RPM and have someone set the timing to 34-36* while its running. Should cure the problem.
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1970 C10 swb 350 4spd under construction |
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03-29-2011, 07:47 PM
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#3 |
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Registered User
Join Date: Jun 2009
Location: somewhere,wi
Posts: 170
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Re: sbc break in
Make sure your carburetor isn't flooding over. Floats set to high or too much fuel pressure will turn the headers red quick! Smell your oil, you can smell raw gas when their real rich...
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03-29-2011, 08:51 PM
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#4 |
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Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: sbc break in
Our dirt cars did that when they were lean or not enough fuel.
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Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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03-29-2011, 10:11 PM
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#5 |
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Registered User
Join Date: Oct 2009
Location: Henderson Nv
Posts: 151
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Re: sbc break in
check and make sure thermostat isnt stuck
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03-31-2011, 12:38 AM
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#6 |
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Registered User
Join Date: Jul 2009
Location: Tulare,CA
Posts: 87
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Re: sbc break in
alright well i got it warming up fine needed a themostat but i noticed some of the cylenders are hotter than others like the tube coming out of #2 is alot more blue than any of the other cylenders on that side of the motor. Could this be due to adjusting valves wrong or the timing because this is still a brand new motor
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03-31-2011, 02:39 AM
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#7 |
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Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: sbc break in
I wouldn't go off color of tubes, but using a heat sensing gun on each tube of the header is much more effective and accurate (they are cheap at harbor freight). But if this an issue it could be intake design and unequal fueling, unequal cranking compression due to a valve open or rings not seated completely allowing blow by. Just a few thoughts.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
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03-31-2011, 11:24 AM
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#8 | |
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"Where were you in '62?"
 
Join Date: Jul 2004
Location: Cleveland County, North Cackalacky
Posts: 5,013
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Re: sbc break in
Quote:
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PROJECT: "FULL METAL YELLOW JACKET" 1962 Chevy C-10 Stepside Shortbed Nostalgia Pro/Street Pickup Truck PROJECT: "FULL METAL YELLOW JACKET Build Thread What Are You Workin' On? - 1Bad62ChevyPickup PROJECT: "TYRANNORAMBLER REX" 1969 AMC Rambler American Nostalgia Pro/Street Youtube Channel: Father Son Projects Youtube Channel: 2TIMOTHY2FITHTEEN  "North and South Carolina Folks Click Here!" (((( ~ I have Parts For Sale & Miscellaneous Stuff ~ )))) "Well being as there's no other place around the place, I reckon this must be the place, I reckon...Nyuk Nyuk Nyuk" -Curly Howard Ph.D. |
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