Gears crunching

Need some help with a technical problem - ask away and let's see if we can all help.

Moderators: hot66, impmad2000, Nige

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bahama68
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Gears crunching

Post by bahama68 »

Started with just reverse but now it's spread to first. Standing still neither will go in without a serious crunching sound that makes me wince. If I'm rolling first goes in no trouble.

Any thoughts?

John.
'68 911S - sold
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hot66
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Post by hot66 »

check your clutch adjustment first.
James

1973 911 2.4S
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Airhead
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Post by Airhead »

Check also your, linkage bushings and gearbox mounts, if still no joy brace yourself for a rebuild of first and reverse due to a worn slder and/or synchrohub as I've just completed (before discovering I am also in for an engine rebuild :roll: ), see pics in the following thread:

http://www.ddk-online.com/phpBB2/viewtopic.php?t=10998
Gary71
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Post by Gary71 »

As above plus reverse will always crunch unless you are stationary and have had the (properly clearing) clutch down for a second or two so the box stops. It just smacks two gears into each other, now such luxuries as synchros on there. :)

Clutch adjustment is key :)
bahama68
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Post by bahama68 »

Ouch. After a new dizzy and starter this years maintenance budget is looking a little thin.

The crunching in reverse is at dead stand still. Had never happened before until about two weeks ago.
'68 911S - sold
Gary71
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Post by Gary71 »

Definitely a dragging clutch. I'm not familar with the release mechanism on the 901 box, but on most boxes a couple of turns on the nut on the end of the cable and you'll be sorted :) Not a big (or expensive) job.
bahama68
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Post by bahama68 »

Cheers Gary.

I'm dropping it in to get an O ring replaced on Friday so I'll mention it then.

John
'68 911S - sold
912uk
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Post by 912uk »

Also get the oil changed not a big job but can help as well. I found it solved a huge number of problems in my E when I did it..
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