86/87 200x crank rebuild

[shortline10]

Had two cranks one with a bad rod and one with bad clutch side threads .
As most know parts are impossible to find for the 86/87 model .
Customer found new bearings so it's rebuild time .

[shortline10]

First two pictures are the finished product , perfectly trued and ready to install .

[atc007]

How close is it ? 2 ? lol.. Great job Mike.

[shortline10]

Perfect Bill :lol: !

Forgot to get pictures on how I true a crank or how to press the rod out , these were pictures for the customer but thought some might like to see how its done !
How close is it ? 2 ? lol.. Great job Mike.

[atc007]

Great job man!

[Dirtcrasher]

I wanna find a rod that I can make a stroker out of. Everyone RUINS the right side threads (why consult the manual??) but there has to be a way to stroke it!!

Nice work SL!!!!

[MIK6]

Ive got a set of ruined right side too!! Lol

[big specht]

I wanna find a rod that I can make a stroker out of. Everyone RUINS the right side threads (why consult the manual??) but there has to be a way to stroke it!!

Nice work SL!!!!
Yea you just weld a plug in the pin hole and off set bore it how far you want to stroke it and heat the rod up and shrink it

[Dirtcrasher]

Yea you just weld a plug in the pin hole and off set bore it how far you want to stroke it and heat the rod up and shrink it

Sounds easy but it has to be in a jig to do that properly and keep it all even and parallel.

Shortline, did he re0use the rod and pin? It appeared so and that stuff is discontinued......

Thanks,
Steve
DC

[shortline10]

Rod and pin were reused and luckily in like new condition , installed new big end rod bearing / shims and crank bearings . Good for another 28 years now :lol:




Sounds easy but it has to be in a jig to do that properly and keep it all even and parallel.

Shortline, did he re0use the rod and pin? It appeared so and that stuff is discontinued......

Thanks,
Steve
DC

[big specht]

Sounds easy but it has to be in a jig to do that properly and keep it all even and parallel.

Shortline, did he re0use the rod and pin? It appeared so and that stuff is discontinued......

Thanks,
Steve
DC
That's the most is on line there is usually more to it what they say but you get the basics

[chargercharlie]

The threads were not only ruined the nut was welded on the crank..judging by the flat threads they welted on it for a while with an impact (the wrong way ofcourse)..you dont want to know how I got the rotor off ;) Thanks for the help mike!