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: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Tue Jan 10, 2017 6:46 am

Drive side bearing in and new plate crank when tin a dream mag housing on had to use 1mm gasket to get clearance on crank just waiting for packing plates ImageImageImage


Sent from my iPhone using Tapatalk

User avatar
garry inglis
registered user
Posts: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Tue Jan 10, 2017 2:19 pm

Reedspeed 5 plate clutch with mb springs put a 2mm top plate on for a bit more clearance Image


Sent from my iPhone using Tapatalk

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:

Tue Jan 10, 2017 2:45 pm

Just an observation. I don't know what your thoughts on the matter are, but I've seen some chatter lately about pull down chain tensioners creating more drag on the chain and reducing power.

User avatar
garry inglis
registered user
Posts: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Tue Jan 10, 2017 3:12 pm

not heard anything but if you set them with the normal 6 to 10 mm slack built in ive had no problems i have two others on my scooters and no problem

User avatar
Suede Ed
registered user
Posts: 263
Joined: Tue Jan 13, 2009 2:01 pm
Main scooter: SIL GP185
Location: Black Country
Contact:

Thu Jan 12, 2017 7:51 pm

Has anyone had a casing conversion done by mike phoenix?

User avatar
garry inglis
registered user
Posts: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Thu Jan 12, 2017 8:19 pm

Image setting up tdc and checking port timings


Sent from my iPhone using Tapatalk

hydra
registered user
Posts: 89
Joined: Wed Jan 21, 2009 7:15 pm
Contact:

Sun Jan 15, 2017 6:15 pm

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

User avatar
garry inglis
registered user
Posts: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Sun Jan 15, 2017 7:51 pm

Well said paul


Sent from my iPhone using Tapatalk

User avatar
garry inglis
registered user
Posts: 1227
Joined: Tue Jul 21, 2015 8:04 pm
ebay user ID: garry52uk
Main scooter: ts1 230 and rb200
Location: darlington
Contact:

Sun Jan 15, 2017 7:53 pm

Image getting there now barrel has gone to rayspeed to get some porting done when that comes back ill get it finished


Sent from my iPhone using Tapatalk

User avatar
garry inglis
registered user
Posts: 1227
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 7:34 am

Image linkage set from af £60 solid aluminium look really nice silver or red


Sent from my iPhone using Tapatalk

Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 7 guests