Catastrophic Engine Failure - What Are my options?

[servetakid]

Sideways displacement? By that do you mean that the barrel has say been fitted and moved a mm or two to either the left or right on the space say between the studs and holes? And thus putting the crank out of line?

I believe tameni manufacturer the cranks for MEC, which no longer exists so they are selling the cranks direct?

[coaster]

All you need now is for some kind soul to find a barrel that's gathering dust, maybe waiting for a rebore

I have an Indian Alli 225 barrel which has done very few miles sitting doing nothing, yours for pint some time it you want it. It will need a hone and a piston but can have a play with porting. Let me know and I'll stick it in the post

[corrado]

Sideways displacement? By that do you mean that the barrel has say been fitted and moved a mm or two to either the left or right on the space say between the studs and holes? And thus putting the crank out of line?

I read that as meaning the small end had no room to move sideways because of the shims and that when fitting the cylinder you would be unlikely to feel that tightness in the small end.

I believe tameni manufacturer the cranks for MEC, which no longer exists so they are selling the cranks direct?

I was under that impression too. I thought that MEC was just a distributor and that they didn't make the parts.

[DigDug]

All you need now is for some kind soul to find a barrel that's gathering dust, maybe waiting for a rebore

Paul

I have a SIL 200 barrel and piston still in their wrappers- postage may be a a bit as the pot is quite heavy but that's all it will cost you.

[servetakid]

Cheers all. I've sent for some quoutes from a lot of the reputable scooter shops in the north about repairing the casings. I am hoping to get to my scooter clubs meeting tonight and see what people can suggest locally. I will post back with my options.

[Speed Demon]

Tameni is a guy who I think has always made the MEC cranks and also those for a few other scooter firms besides. He'll build to a price and TBH I always thought the Black MEC ones were pretty good - used them in TS1s for years but only recently seen my first rod failure with these.

As for the standard MEC ones - standard rods were never up to the job of anything tuned in original form, never mind pattern versions. Sadly Jordan you've learned by your mistakes.

As for Storkfoot's idea of upgrading to a Jap rod at Grampian. I think this is a simple enough conversion on Indian webs or and 'race crank' with a 22mm pin, but standard type cranks use a 22.9mm pin and to convert these requires an expensive stepped pin. Maybe someone can find you a blown race or late SIL crank to convert to an RD rod. The only other issue is that with a 110mm rod you will need a 3mm cylinder packer.

[Donnie]

Bloody hell, show's how long it's been since I have needed to buy anything, didn't know Mec had gone under.

[Killkenny]

Yep, Yam 110 RD rod,Indian webs, tight crankpin,welded if desired, They,ve served me well since the 1990`s never had a rod or big end failure and thats on some 25plus HP engines. you live and learn with Lammies all the time. Hail Frank

[servetakid]

Tameni is a guy who I think has always made the MEC cranks and also those for a few other scooter firms besides. He'll build to a price and TBH I always thought the Black MEC ones were pretty good - used them in TS1s for years but only recently seen my first rod failure with these.

As for the standard MEC ones - standard rods were never up to the job of anything tuned in original form, never mind pattern versions. Sadly Jordan you've learned by your mistakes.

As for Storkfoot's idea of upgrading to a Jap rod at Grampian. I think this is a simple enough conversion on Indian webs or and 'race crank' with a 22mm pin, but standard type cranks use a 22.9mm pin and to convert these requires an expensive stepped pin. Maybe someone can find you a blown race or late SIL crank to convert to an RD rod. The only other issue is that with a 110mm rod you will need a 3mm cylinder packer.

I have a SIL GP crank wich i was looking at getting built with a Jap rod, but i decided it wasnt "economical" as i had already got a "good" crank. Overall condition is fairly decent, but has some rust type marks on the webs. I've got this as an option.

This was my first proper project and i was possibly a bit naive with what components i used. I've learned a hell of alot since running this machine, and now I've learned some more (shame about the circumstances). I was feeling low yesterday. but today I'm feeling more positive and i am detirminded to get it sorted properly! I now have a fair few options, and hopefully its looking like it could potentially cost me less than i initially thought to get it sorted again. So onwards and upwards!

[purple_pill67]

Jem booth can build you a crank up to whatever spec from the sil one you have Jordan