My 122s has a little more gear noise than I am used to. I replaced a collapsed transmission mount, Ujoints, Center Bearing and rubber bushings. When I had the driveline out, I noticed that the output of the transmission was leaking and there was a noticeable amount of slop front and back and side to side on the output shaft pinion of the tranny. I'm probably going to pick up a used m40, but I was trying to get a rough idea how long m40s tend to last after they get sloppy like this?

The shift linkage is pretty sloppy too.

Here is a video of the our 122 about 5 minutes after we started it for the first time: http://oregonstate.edu/~onstottc/volvo/volvo.html

When I bought it the Carbs were in bad shape, the head gasket was blown and the exhaust valves were shot. The generator bracket was broken in several places.

You might be able to pick up a few mods I have made. I replaced the head bolts with ARP studs. I put heat barrier film on the carb heat shield and used some extra insulator blocks from my jaguar Xj6. I nickel plated the steel carb parts and some of the linkage. The K&N filters came off of my out of commission XJ6. I took the metal plates off of an old set of air filters that were on the Volvo and they were a perfect fit for the K&N's.

I installed a GM 10si 65 amp alternator from an old buick. I made the brackets myself.

A rebuilt but never used head came from agent stranglove.

Great video. The transmission sounds like it's due for a rebuild. The parts are mostly available. No idea how long it will last, but these old tanks are very tough. As for the shifter, mine has been terrible for the past three years, you get use to it. People that have driven my car can't usually find 3rd - keeps the speeds down! Fixing it is easy (I've got an M41 now, so never bothered to fix the M40) and involves replacing the aluminum and brass that got warn out by the steele pivot. I notched mine out (M41) and fit a little 6061 aluminum in it's place to go back to the stock size. Easy.

Taking apart the M40 for new bearings etc, isn't hard.

Craig

Who is my best bet for tranmission parts?

Bearings and such you can get locally at any bearing house (nothing special) just bring them in the bearing for numbers/cross matching etc. I've always had good luck with Olof of Vintage Import Parts or the good folks at Swedish Treasures (google gets you the url) for strange seals, gasket sets, and other bits. I've never had to replace a synchro or gear set in my own car, but if they aren't available on this side of the pond, try CVI

Craig

Hello,

I usually have all the parts in stock to rebuild all M40's and M41's.

I have gasket sets, needle bearings, roller bearings, synchros, shift dogs, shift pawls, layshafts, thrust washers, spring clips and more.

I even have the needle bearings for the 73-75 M40/M41 layshaft, as they are no longer available anymore from Volvo.

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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501