oiltech casing alterations

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Fri Dec 02, 2016 4:49 pm

ive just had a spare 150 casing redone into a 200 and what a lovely job they have done i also got them to put a 1mm trench in for crank rod space asi am not sure what i am doing yet but you have to wait 6 to 8 weeks so plan ahead for £212 posted back you cant complain :D

User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Dec 21, 2016 11:43 am

Here's the casing I am going to build ImageImage iam just cleaning it up and getting ready to fit rear bearing Image using one of these tools from mb they are brilliant next in is layshaft gearbox and a gp endplate I have cut off the ramp as i am fitting an li rampImageImage


Sent from my iPhone using Tapatalk

hendy
registered user
Posts: 797
Joined: Mon Jul 07, 2014 10:34 am
Main scooter: lambretta li 125
Location: Tyne and Wear
Contact:

Wed Dec 21, 2016 11:50 am

I had mine done last year and was happy with the job overall but I did learn a lesson.

There were quite a few 'harmless' dimples in the welds. One or two of these turned out to be porous and I had to seal them with epoxy. If I get another done I'll go over it and seal them before building my case and top end. It leaked like a sieve when I did a leak-down check.

User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Dec 21, 2016 12:04 pm

Thanks HenndyI'll check for that there was some small holes in the spigot and I've sealed them with Jb weld I no they weren't right through but I did it anyway


Sent from my iPhone using Tapatalk

User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Dec 21, 2016 12:22 pm

Here iam just trying all my clutch parts got a reedspeed 5 plate with mb springs to go in and gt tensionerImage


Sent from my iPhone using Tapatalk

Scooterdude
registered user
Posts: 774
Joined: Sat May 28, 2016 4:51 pm
Main scooter: Lambretta LI 125 S3
Location: Skaville
Contact:

Wed Dec 21, 2016 2:33 pm

Don't want to come over as negative but it looks a right f****n mess, why on earth have they not cleaned those welds up or re welded those blow holes until it was right rather than just leave it hoping the costumer doesent mind and have them messing about with jb weld?
As I say I don't want to appear negative but if that was mine I'd chuck it straight back at them, sorry.

hendy
registered user
Posts: 797
Joined: Mon Jul 07, 2014 10:34 am
Main scooter: lambretta li 125
Location: Tyne and Wear
Contact:

Wed Dec 21, 2016 2:44 pm

Scooterdude wrote:Don't want to come over as negative but it looks a right f****n mess, why on earth have they not cleaned those welds up or re welded those blow holes until it was right rather than just leave it hoping the costumer doesent mind and have them messing about with jb weld?
As I say I don't want to appear negative but if that was mine I'd chuck it straight back at them, sorry.
I tend to agree with you, although I wasn't massively bothered by the welds not being cleaned up (he was completely up front and told me it would be like that).

The blow holes were disappointing though. Apparently Lambretta cases tend to do that when welded due to high zinc content or something like that. However I do think oiltek could spend a little time getting it right before sending. Mine appeared harmless but there must have been others within the welds that linked up to cause leak paths.

Scooterdude
registered user
Posts: 774
Joined: Sat May 28, 2016 4:51 pm
Main scooter: Lambretta LI 125 S3
Location: Skaville
Contact:

Wed Dec 21, 2016 3:54 pm

Might be worth looking at coating the entire area of the work with a Belzona product if your worried about porosity, without checking I couldn't say which would be the best but you could check their website for relevant information.

User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Dec 21, 2016 4:31 pm

I must admit when I first saw it I thought the same but but you don't see the welding when the barrel is fit and the holes I filled were small blow holes I suppose they build up the weld with just enough to machine back down they do take it back about 5mm behind the gasket face I've checked mine and the rest looks good


Sent from my iPhone using Tapatalk

User avatar
garry inglis
registered user
Posts: 1220
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Dec 21, 2016 4:34 pm

Image


Sent from my iPhone using Tapatalk

Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 10 guests