1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

12a Rebuild: Broke Oil Pump to front iron bolt

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Old 08-19-14, 10:23 PM
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12a Rebuild: Broke Oil Pump to front iron bolt

And it was going so well. Front-end float was .0019"

I need a new bolt, but more importantly I have to get the broken end out.

(And a more accurate torque wrench for the very low end range.)
Old 08-19-14, 10:33 PM
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Originally Posted by TimWilbers
And it was going so well. Front-end float was .0019"

I need a new bolt, but more importantly I have to get the broken end out.

(And a more accurate torque wrench for the very low end range.)
OK, panic subsided. I took the pump off and there was just enough of the bolt sticking up to grab and turn.
Old 08-19-14, 10:57 PM
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I don't use a torque wrench on those bolts for this reason.

Someone around here probably has a good used set for you. Yours are all stretched now.
Old 08-20-14, 01:44 AM
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I always turn about one turn past hand tight with a dab of red locktight on each bolt.
Old 08-20-14, 08:06 AM
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Tim, I have several of those oil pump bolts if you need one or two. Zap me your mailing address, I'll get them out ASAP.
Old 08-20-14, 10:58 AM
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Don't use red loctite on those bolts. The factory doesn't. I don't. Never had one break or get loose.
Old 08-20-14, 11:28 AM
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Place I always seem to go wrong is when the torque spec for one bolt is in in/lbs instead of ft/lbs. Many times over the years I have missed that tiny change in notation. To my agony.
Old 08-20-14, 11:29 AM
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Originally Posted by ray green
Tim, I have several of those oil pump bolts if you need one or two. Zap me your mailing address, I'll get them out ASAP.
Where it goes and what it is.

Thanks Ray. PM sent.
Attached Thumbnails 12a Rebuild: Broke Oil Pump to front iron bolt-oil-pump-bolt-holes..jpeg   12a Rebuild: Broke Oil Pump to front iron bolt-oil-pump-bolt.jpg  
Old 08-20-14, 12:20 PM
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They're headed your way Tim. I'll send a full matched set of 4.
Old 08-22-14, 10:25 PM
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Originally Posted by ray green
They're headed your way Tim. I'll send a full matched set of 4.
Ray,

All is good. They have a new home.
Thanks so much.

I'm no good a guess torque, so I got a 20-200 in-lb wrench. 5-7 ft-lbs works out to be 60-84 in-lbs, and that is a relatively light touch.

Probably old news but during disassembly after each part was cleaned it went into a labeled ziplock baggie and like parts were stored together in old (cleaned) litter pans.
Attached Thumbnails 12a Rebuild: Broke Oil Pump to front iron bolt-dscn1027.jpg   12a Rebuild: Broke Oil Pump to front iron bolt-dscn1030.jpg   12a Rebuild: Broke Oil Pump to front iron bolt-dscn1032.jpg  
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