+2 trans "play"

PostPost by: rdssdi » Fri Apr 26, 2013 11:52 pm

I had disassembled my entire transmission from my 1969 Elan +2 in an effort to repair a whine on deceleration in all 4 gears. I replaced all the bearings and seals but could not find any evidence of a broken or damage component.

The only potential problem was the main shaft end play. It was possible to move the shaft in and out as much a 40 thousands. I had a bushing turned from a larger bushing to place in the housing which is supposed to secure the ball bearing against the trans case face. The shaft now has very little to no fore and aft play.

The small circlip in the shaft was also beaten and did not fit well in the groove on the shaft. It was also replaced.

What is the consensus that this could have caused the noise as well as is the "fix" proper.

Bob
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PostPost by: rdssdi » Fri Apr 26, 2013 11:54 pm

Correction I meant shim not bushing.

Bob
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PostPost by: AHM » Sat Apr 27, 2013 12:22 pm

I can't quite 'see' what you mean.

Could you indicate on a diagram where you put the shim - ie part numbers on RDent website manual
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PostPost by: rdssdi » Sat Apr 27, 2013 7:13 pm

Shim is placed under retainer part "18" P/N 2821E7050C removing fore aft movement of bearing "3" part number 69GG7025. Where shim ID is sized to fit over bearing race OD and presses against snap ring "2" part number 105E7026 thereby removing fore aft movement of bearing as , I assume, retainer has worn.

Bob
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PostPost by: rdssdi » Sat Apr 27, 2013 7:18 pm

Latest information. I have assembled the trans with all the new bearings and the aforementioned shim. All but the shifter lever and top cover. When I spin the main shaft counter clockwise and with a bit of a side load I can most times hear a noise that if amplified through the case and subsequently the car be the noise I am hearing. If I do not apply a side load to the shaft the noise is not created. No lube in the trans. I will try to locate where this noise is coming from before I close up the trans and install it.

Bob
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PostPost by: Sea Ranch » Sat Apr 27, 2013 8:06 pm

Sounds like your best bet, Bob. Listen and identify exactly the part causing the noise. Could use an automotive-type stethoscope to help zero in. Get a partner to do the turning and side-loading so you're free to focus on listening. Even if your previous noise has been fixed and this one you're hearing now will not amount to anything, at least you'll feel you've done everything you could before re-installation.

Let us know . .

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PostPost by: rdssdi » Wed May 01, 2013 12:38 am

The trans was checked and the noise was deemed "normal" gear noise. We assembled the transmission and bolted it to the engine. I have to replace the rubber boot that goes over the clutch lever and fits into the bell housing. Even though the car is stored indoors and has very few miles since restoration the rubber has hardened and cracked. So it goes.

I will report as to the status of the trans noise as soon as the car is running again.

Bob
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