Search found 10 matches

by The Hiwatts
Thu Jul 24, 2014 7:47 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

We have come to the conclusion after 14 gearbox/clutch rebuilds it's time to give in!!! We are no further forward with it from the first rebuild!!! I have put back in my original 150pacemaker engine and taken out the rebuilt 200, and will have to give it another go at a later day!!!! :cry: Oh well!!...
by The Hiwatts
Sun Jul 20, 2014 2:51 am
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

Gears are quite tight on layshaft - we have tried various layshafts too!!!
sT90'in gear box too

:cry:
by The Hiwatts
Sat Jul 19, 2014 6:08 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

Just to add, it's got a Brand new top end, bearing seals crank barrel piston, new top chain guide too!!!!
by The Hiwatts
Sat Jul 19, 2014 6:03 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

We have had the gear box in and out a total of 14 times now!!!! Ok, we changed the hub bearing, we have tried every shim from 2mm to 2.8mm, new phosphor bronze bush, new end plate, bearing, new needle roller bearings,tried various gearboxes, new chain, tightened front sprocket, new clutch, tried old...
by The Hiwatts
Wed Jul 09, 2014 11:19 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

Hi Doom, I have thought this as I have metal chain guides with rubber
Silencing material on them, not Nylon type?? However these were in engine before
Rebuild and I didn't have this noise?? Only thing I've not replaced
Is the layshaft??
by The Hiwatts
Wed Jul 09, 2014 11:08 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

Still no better - I'm sat here stumped now!!
I can't physically build the gear box any different? New bearings too!!
What a ball ache this has become!!! :roll:
by The Hiwatts
Wed Jul 09, 2014 9:25 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

I'm going to change the chain and tighten it on the guides a bit more check alignment - it's definitely not the kick start teeth engaging on gear either just to narrow the issue down!!
by The Hiwatts
Wed Jul 09, 2014 9:18 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

And when I Mean start, as in scooter starts and on tick over!!!!
by The Hiwatts
Wed Jul 09, 2014 9:18 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

Re: HELP! Lambretta Gearbox noise

Yes the usual disappears when clutch in - I've built loads of engines and I've either been lucky to never come across this, or something is drastically wrong??
by The Hiwatts
Wed Jul 09, 2014 8:49 pm
Forum: Tech FAQ
Topic: HELP! Lambretta Gearbox noise
Replies: 27
Views: 13940

HELP! Lambretta Gearbox noise

Hi all, SX 200 casing with new rear hub bearing - Layshaft in, SX200 gearbox, new roller bearing and shim under Christmas tree, Gears in correct way and sit appropriately higher than the layshaft, shim and end plate roller bearing new, and large end plate bearing new, gear shim 2.5mm, with correct a...