Wow good conversation. I've owned my twin discs for 15 years and never
checked the screen and never had a problem. I will check it asap.
On Jul 14, 2014 9:40 AM, "Kerry Lebel" <[email protected]> wrote:

> Bob the filter is a steel screen.  Disconnect the shifter first and check
> the cable.  If you have the twin disc tranny I can scan the manual I have
> so you can have a copy to find the screen.  If you were running it hard you
> should make sure you are getting proper oil flow as I “believe” it shares
> oil with the engine.  I could be remembering incorrectly.
>
>
> Kerry
>
>
> On Jul 14, 2014, at 5:31 PM, John Strong <[email protected]>
> wrote:
>
> I agree that the first step in diagnosis is to change the fluid and clean
> the filter.
>
>
> On Mon, Jul 14, 2014 at 9:03 AM, COPTERBC via UnifliteWorld <
> [email protected]> wrote:
>
>>  Kerry,
>>
>> Thanks. Yes it is a new issue. It only happened as I was docking and
>> shifting in and out of reverse. I could get it to shift OK but with quite a
>> bit of pressure on the shift lever as I shifted it out of reverse.. It was
>> "sticking" in the reverse position. It shifted in and out of fwd. just fine
>> and into reverse smoothly. Where is the filter located? I have never
>> changed it or cleaned it in the 12 years I've owned the boat. I will check
>> the shift cables to make sure it isn't in that system. I'm doubtful though
>> because it happened after running the boat hard to check out engine
>> cooling, which was good. I hate and don't believe in "coincidence' much. I
>> didn't even know there was a filter on the trans.
>>
>> Bob
>>
>>  In a message dated 7/14/2014 8:32:49 A.M. US Mountain Standard Time,
>> [email protected] writes:
>>
>> Bob,
>>
>> Before you start thinking about a rebuild you should consider just a
>> basic inspection.  That twin disc tranny is sensitive to a dirty filter.
>>  They have a permanent screen in them.  Check it and make sure it is
>> completely clean.  I had problems with mine slipping badly on my port side
>> and 90% of it went away after I had the thing cleaned.  Rebuilding the
>> tranny can be pricey as it is very difficult to pull it out and it weighs
>> enough to through out the just about anyone’s back if you don’t take the
>> extra time to hoist it out.  On a separate note is this a new issue?  Has
>> it happened more than once?  And how hard is hard?  Once it is in hear does
>> it work OK or does it slip?  Are you sure it isn’t a control cable issue?
>>
>> Kerry
>>
>>
>>  On Jul 14, 2014, at 4:08 PM, 'BC' via UnifliteWorld <
>> [email protected]> wrote:
>>
>>  I have a 42 ft ACMY with DD 671 NA engines. Yesterday after running the
>> engines hard (1800 t0 2000 RPM) for 30 minutes, my port transmission (Twin
>> Disc) was hard to get out of reverse. Any ideas on this and how difficult
>> is it to get my transmission rebuilt. Does it have to be removed from the
>> boat to be rebuilt? I'm guessing it does. I'm in San Diego. Thanks. Bob C.
>>
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