

| Subject: | Re: Transmission noise, shifter goes into reverse too easily |
| From: | Stephen Edwards |
| Date: | Mon, 7 Feb 2005 22:17:14 -0600 |
Thanks Shawn. darryl also believes that the longer I wait the worse, which only makes sense. i guess those purdy alloys will have to wait... Steve >On 1 Jan 2070 at 23:46, Stephen Edwards <welfarewrkr@IGC.ORG> wrote: > > > I suspect that the "new" 91 GL 4-speed I just picked up needs a > > transmission. It runs very nicely but there is that whine that is > > noticeable as you go up through the gears; also there is very little > > travel on the clutch, suggesting that it's a long time since that was > > done (the clutch is also very heavy to operate, not sure what that > > means), and - most strangely of all - it seems to be quite possible > > to shift into reverse when you meant to go from third into second. > >The reverse issue could be just a linkage adjustment. >As for the whining, I drove my '88 for a few years with this noise. >When I switched to Redline MTL, the noise became more apparent due >to thinner oil (but it shifted better!). After maybe 25k kms, I was >worried enough that I took it in and had the transmission opened up. >All the bearings were replaced, but I recall the big mainshaft >bearing as the one responsible for the noise (it's the most >expensive one). A year and only 10k kms later, my ring and pinion >starting making noise. I took it back to the same shop, and finally >negotiated replacement for parts only, since I thought if the R&P >was due to fail, they should have known 10k kms earlier. (Either >that, or something they did caused it to fail, I don't know which). >In any case, I now have my suspicions that driving it with a noisy >bearing(s) for seveal years may be contributed to the R&P failure >due to metal particles in the oil. I also wonder about the Redline >MTL, since many say that MT90 should be used, even though MTL does >meet the spec (it is 70W80, MT90 is 75W90, the spec is 80W *or* >80W90, so it is not really clear. I plan to use MT90 from now on.) >In any case, if you are concerned, I would drain the oil and see how >much metal is on the drain plug magnet. Keep the oil and let is >settle for a week or more, then pour off to another container and >examine the sediment left behind. Not knowing how old the oil is, >this may not tell you much, but it could also say a lot if there is >a ton of particles on the magnet. (the sediment will be non-magnetic >stuff from the syncros mostly). If the magetic particles are large >flakes, then I would be concerned - this is what I saw when my R&P >failed - metal was flaking off the faces of the gears. >Also, if you plan to keep the van, you should probably deal with it >sooner rather than later, as it won't go away - ie: at least take it >to a reputable shop for an opinion. >I'm sure others, like Darryl at AA Transaxle, can give you more >technical advice, this is just based on my experiences, which are >pretty limited compared to others here... :-) > > >-- >Shawn Wright >I.T. Manager >Shawnigan Lake School
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