Gary, thanks for the reply
My mistake. I stated that the bearings were "insert type", what they are
is "roll-out" bearings.
With this type, a tang is formed on one edge of the insert to bear against
the bearing cap preventing rotation. A matching recess in the cylinder
block for the tang also prevents longitudinal movement.
The top bearing half can be pushed out in the truck without lowering the
crank shaft. This type with the tang supposedly was not used until 1956.
The earlier type (52-55) had a dowel to prevent movement.
John
----- Original Message -----
From: Gary L. Perry <glperry@fwi.com>
To: John Walch <chevytrucker@aiusa.com>
Sent: Thursday, August 17, 2000 11:52 PM
Subject: Re: [oletrucks] 235 Main bearing mystry - HELP!
> John, I'm not really understanding what the problem here is. 54 engines
DID
> have inserts
> for mains, first year other than 53 Powerglide from car. Don't the later
> bearings stay the same?
> Maybe changes (improvements) were made to later engines, don't know. Seems
> most kits
> fit all years from 54-62 that I have seen. You can order bearings
seperately
> from engine
> rebuilders to fit whatever dimensions they measure your engine for.
>
> G. L. Perry
> Huntington, IN
> 54 Chevy 2-ton (driver)
> 50 Chevy COE (project)
> MM Jet Star 3 Super (tractor)
> -----Original Message-----
> From: John Walch <chevytrucker@aiusa.com>
> To: oletrucks <oletrucks@autox.team.net>
> Date: Thursday, August 17, 2000 3:53 PM
> Subject: Fw: [oletrucks] 235 Main bearing mystry - HELP!
>
>
> >I need help on the main bearing of my '51 3100 as noted in the original
> >message below. Check out the pictures of the engine at:
> >
> >http://aiusa.com/jwalch
> >or
> >http://www.clarkson.edu/%7Ewalchjc/chevy.html
> >or
> >http://chevytrucks.org/users/wayne/
> >
> >
> >Thanks,
> >John
> >
> >----- Original Message -----
> >From: John Walch <chevytrucker@aiusa.com>
> >To: <oletrucks@autox.team.net>
> >Sent: Thursday, August 17, 2000 1:21 PM
> >Subject: [oletrucks] 235 Main bearing mystry - HELP!
> >
> >
> >> I'm looking at a 1954 235 that has, believe it or not, a 56-62 "insert"
> >type
> >> main bearings. These bearings are not supposed to fit this block.
> >> After much research, here's what we have:
> >>
> >> Block casting #3733949 (1953-54 235)
> >> Code date F73- June 7,1953
> >> Crank Casting A#3701488
> >> Head casting #3836848 (1956-58)
> >> Distributor #1112403 (1955-59)
> >> Oil pump cast # 3701562 (1953-55)
> >> Water Pump - 2 hole type (1952-54)
> >>
> >> According to all the information I can find, this engine is supposed to
> >have
> >> main bearings of the doweled type. Has anyone ever seen a situation
like
> >> this before? Maybe this was (is) an experimental or prototype of the
> 1956
> >> 235.
> >>
> >> What's wrong with this picture? Appreciate any help.
> >> John
> >> chevytrucker@aiusa.com
> >>
> >> 1951 Chevy 3100
> >>
> >> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
> >oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|