Author Topic: My 1986 IT 200 unfinished Engine rebuild  (Read 1108 times)

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Offline Donald1

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #10 on: November 06, 2018, 06:36:46 AM »
Hey Donald I heat my cases up in the bbq slowly to 200 degrees C then gently tap them on a block of wood, the bearings generally fall out. I do have a socket and rubber mallet handy if they do need a soft tap.
The first time I done this I used the oven and smoked the whole house out and copped a sh_t tin of abuse from the wife.
thanks Cooky, do you think a little convection oven will do the trick if engine fits in it?

Offline Cooky375

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #11 on: November 06, 2018, 10:58:19 PM »
I guess it would, as long it fits in and heats it up, it?ll do the trick.

Offline Donald1

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #12 on: November 12, 2018, 02:31:59 AM »
i guess they sell cheap, those little convection ovens. then 200 degrees ....should i leave in on 200 degrees for a specific amount of time?
 i still have to remove the seals, does anyone recommend a seal removal tool?

also, i was wondering if i should just replace the crankshaft bearings since i dont see excessive play in the other ones, or would it be wise to replace all including the bushing?

Offline Cooky375

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #13 on: November 13, 2018, 09:02:36 PM »
It all depends on the budget, if they look good I leave them. I?ll change mains and counter shaft bearing but if the others look ok, I?ll leave them be.

How long you leave the cases may be oven dependent. If the bearings don?t come out easy, just put the cases back in the oven and go for longer.

I pull the main seals after doing the bearings, I use a socket to push them out. I?m  not sure if that?s right or wrong, it?s just what I do.

Hopefully this helpful.

Offline Donald

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #14 on: December 24, 2018, 05:50:24 AM »
It all depends on the budget, if they look good I leave them. I?ll change mains and counter shaft bearing but if the others look ok, I?ll leave them be.

How long you leave the cases may be oven dependent. If the bearings don?t come out easy, just put the cases back in the oven and go for longer.

I pull the main seals after doing the bearings, I use a socket to push them out. I?m  not sure if that?s right or wrong, it?s just what I do.

Hopefully this helpful.
Yes Cooky, a great help. i just need to gain confidence rebuilding this engine. im mechancially inclined but never took on an engine rebuild before, i dont know why im so paranoid. i think one of my biggest fears is not putting the gear shifter and shifter forks back in correctly. i forgot to rubber band them  together before removing.

Offline Cooky375

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #15 on: December 24, 2018, 07:14:01 AM »
Yes I was the same and it gets better with practice, I?ve only done a 175, 200 and 250. I have never used rubber bands on any. Patience and care will get it in correctly. Slow is smooth and smooth is fast.

Offline Donald1

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #16 on: February 11, 2019, 06:03:18 AM »
FOUND AT GOOD WILL! my most exciting Good Will purchase to date!
engine fits perfect ...

i guess bake at 200 for 30 minutes?

Online killindini1

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #17 on: February 11, 2019, 09:11:57 AM »
Don't forget to season well ;D ;D

Cheers,
Steve.
Beer is more than just a breakfast drink

Offline Donald1

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #18 on: February 12, 2019, 09:25:21 AM »
Don't forget to season well ;D ;D

Cheers,
Steve.

 ;D

Offline Devondan

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Re: My 1986 IT 200 unfinished Engine rebuild
« Reply #19 on: February 12, 2019, 09:30:39 AM »
If the engine is apart, I change all the bearings, they are not expensive, and stripping down again a few weeks is a pain in the ar_e for a few ?/$!
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