[AT] combine engine update

Mon Jun 20 06:01:08 PDT 2011

Right now, I have a 99 Chevy C6500 with a 3126E and an MT653 Allison It is 
just like new with air and power and everything.  It belonged to a county as 
the mechanic truck.  However, the engine smokes more from the breather than 
from the exhaust.  We think it has a broken ring.  Getting it torn down 
seems tojust not happen with the other things we have going...

Cecil in OKla
----- Original Message ----- 
From: "charlie hill" <charliehill at embarqmail.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, June 20, 2011 5:28 AM
Subject: Re: [AT] combine engine update

> Cecil,  I was just doing some reading on the 3208 on line.  It appears 
> they
> were originally designed as a throw away but some rebuilders figured out 
> how
> to re-bore and sleeve them.  Then later on, in the early 80's CAT made 
> some
> changes to them and made them a more reliable engine.  Well, if I remember
> right they were always pretty reliable, they just weren't made to be
> rebuilt.  Anyway there are still a lot of them around in boats and 
> equipment
> and used as power units.  Back in the mid 70's they had a bad reputation
> among truckers.
>
> Char
>
> -----Original Message----- 
> From: Cecil Bearden
> Sent: Sunday, June 19, 2011 11:12 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] combine engine update
>
> I have one truck with a 3208 and have had very good luck with it.  I also
> have a 3208 in my 613 scraper and it appears to be ok.  My 2 Ford semi's
> have 3406B's in them.  The  Freightliner  has a 400 cummins
>
> Cecil in OKla
>
>
> ----- Original Message ----- 
> From: "charlie hill" <charliehill at embarqmail.com>
> To: "Antique tractor email discussion group" 
> <at at lists.antique-tractor.com>
> Sent: Sunday, June 19, 2011 8:51 PM
> Subject: Re: [AT] combine engine update
>
>
>> Cecil,  CAT likes to sell parts!  Of course, as you well know, not all of
>> their engines are known for reliability and longevity.  There is the 
>> 3208,
>> better known as a throw away.  At least I think it was the 3208, it's 
>> been
>> a
>> long time since I messed with truck engines.
>>
>>
>>
>> -----Original Message----- 
>> From: Cecil Bearden
>> Sent: Sunday, June 19, 2011 7:22 PM
>> To: Antique tractor email discussion group
>> Subject: Re: [AT] combine engine update
>>
>> I really do not understand why they ever came up with this design.  Cat
>> engines are known for their reliability and longevity, but pull the head
>> to
>> fix a small problem and you end up overhaulling the engine.  It really
>> seem
>> like the engineers missed the boat on that design.
>>
>> 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: Sunday, June 19, 2011 3:07 PM
>> Subject: Re: [AT] combine engine update
>>
>>
>>> 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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>>>>
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