[AT] combine engine update

[john hall]

Cecil, the scary part of the whole rebuild was Deere and Clevite called for 
3 O-rings per sleeve. I talked to techs at Clevite as well as the machine 
shop and neither could explain why the parts list conflicted against what 
was in the engine. I agree that whenever you open up an engine built like 
this, you need to change the O-rings!

John Hall

----- Original Message ----- 
From: "Cecil Bearden" <crbearden at copper.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Saturday, June 18, 2011 7:28 AM
Subject: Re: [AT] combine engine update


> John:
> Sounds like that engine is built just like a lot of caterpillar engines. 
> If
> you pull the head you have to pull the sleeves and put in new seals 
> because
> the head holds the sleeves down against the seals..  Our old 2 o-ring
> sleeves on the old tractors were really  built for servicing, not like 
> these
> later models....
>
> Cecil in OKla
> ----- Original Message ----- 
> From: "john hall" <jtchall at nc.rr.com>
> To: "Antique tractor email discussion group" 
> <at at lists.antique-tractor.com>
> Sent: Saturday, June 18, 2011 5:44 AM
> Subject: [AT] combine engine update
>
>
>> Been awful quiet lately so I thought I'd share an update on my combine
>> engine. Last spring, I found water in the oil on the engine on my John
>> Deere 55 combine. We pulled the head and changed the gasket and all
>> appeared well. Cut the wheat crop with no problems. Last fall we again
>> found water in the oil--2 weeks before cutting soybeans. I mentioned it 
>> on
>> the list here and inquired about block seal. I decided to try some K&W
>> Block Seal. It appeared to work as we cut the beans with no problems. I
>> put anti-freeze in for the winter and pretty much forgot about it. Then 
>> in
>> late winter I went to crank it up one day only to find it was way low on
>> water and way too full of "oil". I looked around for high-tech block
>> sealers and found a couple that cost over $100, but they would not
>> guarantee a repair. Nothing else to do but pull the engine. Got a fellow
>> that lives nearby with a track-hoe to do the lifting for us and set it in
>> the shop. When I dropped the pan I saw water leaking on 4 !
>> sleeves. The engine had been rebuilt before I got it using Clevite parts.
>> It took a little doing but everything was converted over to new Clevite
>> numbers and we installed rings, rod bearings and sleeve seals. The sleeve
>> seals in this engine leave a little to be desired. Only one seal is used
>> and the sleeve compresses it when the head is installed, like a metal oil
>> filter canister. The current theory is when we pulled the head to change
>> the gasket, we released the pressure on all the sleeves causing them to
>> start leaking. Anyway, we just finished cutting wheat with no engine
>> troubles. Matter of fact the only trouble we had with the combine was a
>> leaking fuel bowl. Not bad for a machine that is older than its owner!
>>
>> John Hall
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