Opened up an old Indian GP engine and found this......

[drunkmunkey6969]

.....cheeky little spring loaded chain tensioner:

[dapper]

Mounted on the wrong side of the chain too. That must have been under some pressure

[Lamaddict]

Seems like a clever design to me and I always thought that the chain ran backwards, if so this would work better.

[Ian Hepworth]

I found one exactly like that in my kelvinator avanti engine. I thought it was just a clever bodge but it's exactly the same as yours.

[mark]

Found one like this last year lol
http://www.forums.ilambretta.com/viewto ... atic+chain

[joespeed]

this tensioner look like a massey ferguson 23c timing chain adjuster,when the chain wears the piston/pawl pushes out further,it is made in india,good idea but when the chain wears to excess the plunger will fall out possible locking the clutch crownwheel not good!
regards
joe

[honestbob]

thats the same way one on a trials bike works the chain is tight on top the slack wuld be at bottom

[Knowledge]

this tensioner look like a massey ferguson 23c timing chain adjuster.....
regards, Joe

Joe, You seem to know a lot about tractors.

I used to like tractors. I'm an ex-tractor fan.

[RinB]

this tensioner look like a massey ferguson 23c timing chain adjuster.....
regards, Joe

Joe, You seem to know a lot about tractors.

I used to like tractors. I'm an ex-tractor fan.

Martin at least you live in the right part of the country for tractors

[joespeed]

this tensioner look like a massey ferguson 23c timing chain adjuster.....
regards, Joe

Joe, You seem to know a lot about tractors.

I used to like tractors. I'm an ex-tractor fan.

martin, i like it ! not a lot,keep pulling your wire! or should that be cable ,lol
regards
joe
ps.wanna buy a tractor?