Unhappy Noises

[Grim]

OK, i'm aiming for diff removal this weekend, does anybody know if i can remove the diff without dropping the rear beam? I've welded in strengtheners which make that a 2 week job...

[speedtripledan]

took mine out and put it back last weekend straight out no probs, hardest bit on mine was detaching the prop (limited access) other than that straight out no probs. Back in was a bit harder getting everything to line up needed a big jack and a crow bar

[Grim]

just ordered a set of bolts for the driveshafts, but i doubled up on quantity in an attempt to get to the minimum order price. So if anyone wants a set, give me a shout.

[Grim]

got the diff back today and refitted it, and there's just as much play in the driver's side driveshaft flange as there was before!!! Am i being daft, or does this not seem right?

[Graham385]

When you say "play" do you mean side to side or are you meaning backlash in the diff i.e. rotational "play"?

 

If it's side to side then it sounds wrong!

[Grim]

very much side to side/up and down, you can take the driveshaft and move it towards the boot, to the ground, fore or aft.

 

I'll give MR GB a ring tomorrow and see what they say. Hopefully, car will be OTR tomorrow eve, just need to reattach the gearbox mount, get it off the jacks and tidy up!

 

 

edit: checked the backlash, seems lovely, vastly better than it was before (an inch in terms of circumference of wheel)

[Grim]

well, gave them a ring, he seemed to suggest it was normal but offered to take a look, so i'll pop down

 

If it is normal, i'm hoping the initial diagnosis was right, cos otherwise the noises might still occur

Aiming for a test drive tonight

[megadodo]

My LSD diff has no up/down forward or backwards movement in it at all. My original none LSD diff off the donor, if I remembered correctly was similar and I can't believe that a good diff should allow any movement in those directions, surely that implies bearing problems?

[Graham385]

I would have thought that movement in the drive shaft / diff joint would prevent a good oil seal!

[speedtripledan]

My diff has no movement in it what so ever nor should it, sounds like your cv joint on the driveshaft to me. If you want a comparison pop down to mine and have a look your more than welcome

 

Dan

[Grim]

well, i'm crying into my beer now. Just been out for a test drive, and it is woeful.

Whines like a *bleep* below 30mph, whines a little above that and at 50 to 60 it's making a chattering noise as loud as the exhaust. Felt the casing after a sub 10 miles drive and it's really hot. Yes there is oil in it.

 

I'm at a loss really. I'm taking the car to them tomorrow (if i dare drive it the few miles there) and see what they say.

 

Dan: it's most definitely not the CV joint moving. The output flange is hard bolted to the CV joint, so any slop in that would not be felt at the flange.

 

Gutted

[speedtripledan]

I,m i right in thinking you have had the diff rebuilt ? If its not the drive shaft there is nothing else but the diff at fault so is what you had done under warranty?

Typical bloody kit car !! I hate mine one day and love it the next

 

Keep us posted love to what it turns out to be in the end.

[Grim]

yes it was rebuilt, i even asked to keep the old bearings (out of professional metallurgical curiosity) so i know it has been done.

 

I know the drive shaft flanges plug in, but i can't see how there could be any movement in them that could cause any wear (hence cause play), they're fixed wrt to the moving parts of the diff.

 

There's a reasonably priced lsd diff on ebay, tempted to just go buy that. Will see if i can resolve the current issue first though.

[speedtripledan]

yes it was rebuilt, i even asked to keep the old bearings (out of professional metallurgical curiosity) so i know it has been done.

 

I know the drive shaft flanges plug in, but i can't see how there could be any movement in them that could cause any wear (hence cause play), they're fixed wrt to the moving parts of the diff.

 

There's a reasonably priced lsd diff on ebay, tempted to just go buy that. Will see if i can resolve the current issue first though.

does the lsd make a differance ? often thought of looking for one for mine

[Grim]

For a pinto power output, it probably makes little difference when driving, but it's good for pulling out on wet roundabouts and slippy surfaces.