Ty,
Post-mortem per Sean:
"It appears that the liner split and caused hydraulic lock between piston and
head.
This broke the rod and the resulting flaying of the rod broke the camshaft and
put holes in the block".
"The head and the crank survived the failure, with some damage to the rod
journal".
This is somewhat consistent with two liner failures that Larry Young
experienced.
Our liners may have been compromised by water in block and a hard freeze after
garage door was left open.
This also explains why radiator exhibited a bulge in top and bottom tanks, a
condition that we reported earlier in the year.
"never be beaten by equipment .....or your attention to detail". to paraphrase
Kas.
Conjecture presented here and willing to listen to other theories.
Joe
-----Original Message-----
From: tylerpthompson@yahoo.com
To: Mark J Bradakis <mark@bradakis.com>; fot-bounces@autox.team.net; fot
<fot@autox.team.net>
Sent: Thu, Sep 23, 2010 9:42 am
Subject: Re: [Fot] Improving the stock tr4 crank
I am very interested in any other responses to Jim's questions. I plan on
building up a stock motor this winter. The crank seems to a weak link and any
help this group can provide is certainly appreciated.
Joe, did you ever diagnose why the motor went at Topeka?
Thx
Ty
#413
------Original Message------
From: Mark J Bradakis
Sender: fot-bounces@autox.team.net
To: fot
Subject: Re: [Fot] Improving the stock tr4 crank
Sent: Sep 22, 2010 9:23 PM
toodamnfunky@comcast.net wrote:
> FoT
>
> I am preparing a fresh crank ( stock ) for next season and I want to do
>
> everything I can to bullet proof it. I will start with Magnafluxing it,
then
>
> shot peen, then cryo treatment, balanceB and finally nitriding.
>
>
Right off the bat I would say magnaflux, then balance. Once
any balance grinding is done, then continue with the other
treatments.
mjb.
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