B44: Tight and notchy transmission?

[BloodClod]

Hi guys,

I’m halfway through my B44 build and while most of it has been very smooth, I’ve noticed that the front and rear transmissions are really tight and notchy.

Have checked and ensured they are built correctly, removed flashing from the ring/pinion gear, ensured the gearbox isn't over-tightened.

Read on another board that the car should be run like this and that the gears will free up after a few packs.

I’m wondering if anyone else has experienced this? Should I run the car as is and expect it to free up? It is one of the tighter transmissions I’ve ever built and it’s certainly not what I expected of this car.

Any input would be great! Thanks.

BC

[IceMike]

my one was smooth as anything, an could hardly hear anything it was so quiet.

[Northy]

China moulds....

G

[RLGfx]

sounds to me like the gearbox isn't shimmed correctly. Play about with the positions of the spacer shims on the diff and see if that helps...

[Northy]

What do the instructions say about shimming?

I looked on the AE site and there is no manual to download

G

[BloodClod]

Well... the instructions just show the number of shims to put on each side of the ring and pinion gears. I followed them exactly.

I was going to play with the shims but on another board someone mentioned that playing with the shimming would break gears as the gears wore in.

Icemike - smooth eh? I guess there might be some tolerance or molding inconsistencies then.

[ryan]

Mine was the same, i checked it all through and was fine so ran a few packs through it and its now fine.

[OldTimer]

Originally Posted by Northy

I looked on the AE site and there is no manual to download

http://aedownloads.com/downloads/manuals/b44_manual.pdf

[WHITTLER555]

I had exactly the same problem but only on one gearbox. I took out one black shim on the pinion shaft and put it together and it was very smooth.

I then read on an American forum that you should not change the kit shims and build it as per instructions and it will bed in.

So back in bits again and decided to wet and dry a VERY small amount of flashing which was noticeable from the rear of the pinion. All shims back in and it is smooth now.

Not run it yet though!