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Re: Engine Cylinder Repair/Re-sleeve? [Re: Lha1988] #1102899 01/31/17 10:12 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Just got off the phone with the machinist: They were able to "heat it and straighten it out" and finish the Valve Job and surface. Sounds like they saved it, of which I'm very happy. These heads are getting hard to find.

Off topic, but need an answer:
During the teardown, lot of the bolts which have Lock Washers pressed onto them have lost their "bend". I question their intended function now.

[Linked Image]

Anyone develop a way of bending the half while on the bolt?

Thanks for all the help.
Steve


'80 4X4 Longbed
From the Off-Road World
Re: Engine Cylinder Repair/Re-sleeve? [Re: Stevie] #1102921 02/01/17 02:58 AM
Joined: Jan 2017
Posts: 17
L
Lha1988 Offline
Need a Spot
I've never heard of heating up and straightening a head,but if it works,great! On the captive washers,I wouldn't think you'd be able to get the "set" back in them. that said,maybe they've just locked in place by friction and will spring back if you can get the ends apart by bending the washer in opposite directions. Good luck.

Re: Engine Cylinder Repair/Re-sleeve? [Re: Stevie] #1102934 02/02/17 03:18 AM
Joined: Feb 2005
Posts: 7,340
R
rxinhed Offline
Trail Leader
*****
Heads don't heat and get straight...sounds like you spoke to Bruce Freeburn in Fontana, charlatan!

Why not scrap the 20R altogether and upgrade to the 22R?

Re: Engine Cylinder Repair/Re-sleeve? [Re: rxinhed] #1102949 02/03/17 02:46 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Originally Posted by rxinhed
Heads don't heat and get straight...sounds like you spoke to Bruce Freeburn in Fontana, charlatan!

Why not scrap the 20R altogether and upgrade to the 22R?


Thanks. I may not have described it in the right terms ("heat" they said), but got the head back from the shop, guaranteed.

[Linked Image]

[Linked Image]

[Linked Image]

AFA going to a 22R, I thought of that, but was told by the smog tech that if the truck doesn't have the original-typed engine (1980 = 20R), he can't certify it as passing CA Smog Check.

Steve


'80 4X4 Longbed
Re: Engine Cylinder Repair/Re-sleeve? [Re: Lha1988] #1102950 02/03/17 02:48 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Originally Posted by Lha1988
I've never heard of heating up and straightening a head,but if it works,great! On the captive washers,I wouldn't think you'd be able to get the "set" back in them. that said,maybe they've just locked in place by friction and will spring back if you can get the ends apart by bending the washer in opposite directions. Good luck.


Thanks. Will give it a shot.

Steve


'80 4X4 Longbed
Re: Engine Cylinder Repair/Re-sleeve? [Re: Stevie] #1103017 02/08/17 12:54 PM
Joined: Jan 2004
Posts: 383
Stevie Offline OP
Mudrunner
Coming together.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Moly-B for anti-seize lube, and torqued to 75 ft/lbs.
[Linked Image]

[Linked Image]

Ready for piston/rod installation.


'80 4X4 Longbed
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