Engine ID

[Cooky]

Posted just now
Hi Guys

Newbie here that needs some help. Picked up a GS1100G basket case recently. Frame is 12/81 and number suggests it's a 82 model. Engine that came with the project has

# U701-112696 and after DOT checks, is not the engine that was in the bike on last rego in 07.

Can someone please help with engine id, as engine does not want to fit between engine mounts. All seems to line up, even shaft drive, but with mount bushes installed in cases it is about 15mm to wide to fit between rear mounts, and the same on left lower. If I remove the bushes it drops in. Also engine mount brackets seem to be ok, but bolts are wrong length, which makes me think they may have been from the original engine.

Just want to get this worked out before I start resto.

Cheers
Cooky

[KiwiAlfa156]

May be the bushes and bolts aren't the correct ones? May be some pics ?

[Nessism]

The rubber mounts came on the later GK variant.

[Cooky]

Thanks Nessism will try to track the engine I have

[Cooky]

Well Nessism is correct, removed bushes and engine fits(can't stay that way). Went to a mates Shop who has GS and GK"s. GS lower rear mount is solid while GK is rubber mounted. So it seems GK frame mounts are further apart on the rear than GS frame. Appears I have a GS frame and a GK engine.

[GregT]

I suspect it's possible to custom make bushes to solve the problem. Either solid aluminium or urethane. I've made custom bushes from urethane for GSXR engines when in other frames and it works well. Got a friend with a lathe ?

[Cooky]

Thanks Greg
That was 1 thought, have a lathe myself and a local shop sells urethane rod, My Mate also offered to sell me one of his GK wrecks to make 1 out of 2 or a rebuilt GS engine to fit the frame. 3rd option is to part out what I have and find a more complete project. I'm going to stare at it this week with a beer in my hand till my next bright idea hits haha.