Rebuilding motor

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monzadon
Posts: 68
Joined: Fri Aug 11, 2017 3:35 am

Rebuilding motor

Post by monzadon »

I have a 65 Monza conv with the 140 motor and i have some dropped valve seats, the heads are at a machine shop right now but the valves damaged two pistons, I need to replace those pistons so when I am doing this i want to put new rings in and rod bearings, my question is, how do I replace the bearings without splitting the case, there isn't any room to get to the lower rod nuts, do i need a special tool, or is there a special way to do this

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bbodie52
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Re: Rebuilding motor

Post by bbodie52 »

You can position the crankshaft journal to allow access with a 3/8" drive swivel head wrench to both connecting rod nuts. A 3/8-inch Drive Beam Torque wrench (no ratchet head) can also fit to properly torque the 5/16-24 connecting rod nuts to 20-26 ft, lbs.

See the attached 1965 Corvair Chassis Shop Manual - SECTION 6 - ENGINE, page 6-31 for connecting rod cap removal procedure. Page 6-34 describes the connecting rod cap installation procedure.

Image

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Torquing Connecting Rod Nut
Torquing Connecting Rod Nut
:chevy: :wrench:
Attachments
1965 Corvair Chassis Shop Manual - SECTION 6 - ENGINE.pdf
1965 Corvair Chassis Shop Manual - SECTION 6 - ENGINE
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Brad Bodie
Lake Chatuge, North Carolina
Image 1966 Corvair Corsa Convertible

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