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GMC V6 and V12 Engines Engine repair and rebuilding

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Old January 29th, 2017, 03:40 AM
hubarlow hubarlow is offline
Join Date: May 2016
Location: Harlingen, TX
Truck: 1963 1000
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Default Re: Spun a rod bearing

Well, a couple of buddies came over tonight and we started the truck up. Part of my problem was that I could not control the throttle while trying to hunt down where the noise was coming from. Another part of my problem is that I have 60/40 hearing loss, so it an be difficult at times to hear what is plain for most people (Too much time spent near loud machinery and too many ear operations because of infections as a kid). In any case, it was difficult to track down, but we discovered the problem TWO different rocker arms on the top of the engine, one on ether side, made it SOUND like it was coming from the middle and gave it the distinctive double tap like a rod bearing. I tightened them all by feel (not with the gauge) and the noise went away. Thank goodness! I really DO need to tear the engine down to see what I have, though. Thanks for all the advice. I am sure I will need it later.
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Old January 29th, 2017, 03:15 PM
bobdylan bobdylan is offline
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Join Date: Mar 2015
Location: mclouth kansas
Truck: 64 Gmc suburbann 305e, 4speed. v12 truck engine, v12 irrigation,2-305e,305a,305d
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Default Re: Spun a rod bearing

I always go with, if your not going to be good you might as well be lucky. Glad it worked out.
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