oiltech casing alterations

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
Scooterdude
registered user
Posts: 782
Joined: Sat May 28, 2016 4:51 pm
Main scooter: Lambretta LI 125 S3
Location: Skaville
Contact:

Mon Jan 16, 2017 9:44 am

What pipe is that Garry?

User avatar
garry inglis
registered user
Posts: 1226
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Mon Jan 16, 2017 10:19 am

It's the ads5 road race it works pretty much the same as a franspeed race

User avatar
garry inglis
registered user
Posts: 1226
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Jan 25, 2017 11:27 am

Well it leaked like a siv all round the welding on the top and bottom I've spent £2500 on this engine and am resorting to £5 worth of Jb weld to try and sort it out fuxking ridiculous ImageImage


Sent from my iPhone using Tapatalk

nellyboyo
registered user
Posts: 343
Joined: Wed Sep 22, 2010 10:28 am
Main scooter: Lambretta
Contact:

Wed Jan 25, 2017 12:32 pm

Oh dear. Surely you can complain ?

User avatar
garry inglis
registered user
Posts: 1226
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Jan 25, 2017 1:53 pm

whats the point ill just have to fix it ill try jb plus some epoxy i think and hopefully that sorts it out, it just pisses you of when you put quality parts and time in and check and double check

User avatar
HxPaul
registered user
Posts: 1080
Joined: Fri Dec 06, 2013 1:58 pm
ebay user ID: panhead_5
Main scooter: lambretta Li 150
Location: Halifax,Yorkshire
Contact:

Wed Jan 25, 2017 2:10 pm

hydra wrote:Hi,
Maybe we should accept that it isn't the welding that creates a porous Casing here. If you look at some of the photo's, especially of inside the Crank area and cylinder base Gasket area, there are blow holes where there hasn't actually been any welding done, add to this 50 years of petrol/oil soaked Casings and i reckon it's an up hill task to weld perfect. Adding more and more layers of weld does seal the Casing better and gives strength to the Pins that are welded into the casing for the new stud holes and re welding blow holes after machining could cause issues with heat distortion, as prior to welding, a steel plug is fitted into the Casing to help stop this, although the Mag transfer port always moves and as a consequence the Mag flange/transfer port area is machined also. As a note Indian Casings weld up better, whether that's because of the Aluminium casting or because they have not had as much petrol/oil, I don't know. Also, as previously mentioned we do also now sand blast and wash with Acetone prior to welding, but even this can't reach into 50 years of soaked Casings and so as soon as welding starts, the Casing turns into a volcano and the gases can create blow holes. So if anyone can get a Crystal ball and see if there Casing is one of these....don't send it. You wouldn't believe the state of some of the Casings that arrive, some look like they have just been removed from a swamp, some have all the studs and Bearings in, etc, etc.
The choice of whether or not you send a Casing or not is yours, but if you want perfection....buy a new Casing, simple.
Thank you, Paul - Oiltek
Thats the best argument I've heard for not having an Innocenti case converted by anybody.

nellyboyo
registered user
Posts: 343
Joined: Wed Sep 22, 2010 10:28 am
Main scooter: Lambretta
Contact:

Wed Jan 25, 2017 2:13 pm

Yep I sympathize mate . Was looking at doing a similar conversion on a block I've picked up .
Will be taking it to a local engineering firm to see what they think next week . I need more gasket face as well as the studs modifying.
We use Belzona in work and that goes like steel if mixed correctly just as a side note. Good luck

Scooterdude
registered user
Posts: 782
Joined: Sat May 28, 2016 4:51 pm
Main scooter: Lambretta LI 125 S3
Location: Skaville
Contact:

Wed Jan 25, 2017 2:59 pm

That's shocking! Looks terrible and leaks like a sieve, I feel for you dude and wonder if I had mine done by that other geezer for£380 I'd have gotten a much different job?
As you've already spent 2.5k would it not be a better option instead of f@@king about with jb weld, that may or may not work to just move it on, put it behind you and get a 200 case from AF or Harry Barlow for around £350?

User avatar
Doom Patrol
registered user
Posts: 2288
Joined: Wed Jan 07, 2009 5:03 pm
Main scooter: Lambretta GP 150 going on 200
Location: Second star on the right and straight on till morning
Contact:

Wed Jan 25, 2017 3:01 pm

That's got to smart. In the long run you'd might have been better off going for one of RT's new casings.

User avatar
garry inglis
registered user
Posts: 1226
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Wed Jan 25, 2017 4:00 pm

I'll see if I can fix but no matter how you look at it your bodging what should have been a normal build and to be honest I've lost faith in the casing and on every run out you'll be wondering if it's going to go bang


Sent from my iPhone using Tapatalk

Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 8 guests