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Old 12-04-2012, 07:10 PM   #46
concours
WFO for 41 years
 
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Location: Kensington, NH USA
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Originally Posted by bagpiper22 View Post
I'll let you know what I find. I had to leave it half-opened for now. I did what I could to remove the pinion gear, but didn't want to force it, so the proper tool is on the way. Should arrive this week.

I moved too fast and didn't mark my shifter before pulling the inner cover, so now I'll learn all about indexing. fun fun!

I hope to get at the trap this weekend. Will post results.

Thanks!

Scott
You know you have to heat the case to get the bearing out, right?
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Old 12-04-2012, 07:32 PM   #47
marksbonneville OP
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You know you have to heat the case to get the bearing out, right?
I stuck mine in the oven and the crank just fell out
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Old 12-04-2012, 09:18 PM   #48
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I was going to go that route, but then figured with a puller on the way, I'd just wait. If I end up baking it, do you recommend a certain temp? For how long?

It's just the right hand side of the case, with the crank. Oil pump is still attached. I have an old baking sheet in my shop I can put the case in. Maybe baste it with a nice little 5W-30? Ha!

Thanks,

Scott
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Old 12-05-2012, 07:52 AM   #49
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Originally Posted by bagpiper22 View Post
I was going to go that route, but then figured with a puller on the way, I'd just wait. If I end up baking it, do you recommend a certain temp? For how long?

It's just the right hand side of the case, with the crank. Oil pump is still attached. I have an old baking sheet in my shop I can put the case in. Maybe baste it with a nice little 5W-30? Ha!

Thanks,

Scott

Remove the oil pump as you might as well replace the gasket anyhow. I put mine in the oven at 250 but the crank and bearing fell out before that point, the pinion tool was a waste of money for me, could not hold up to the pressure. Make sure you post pics of the parts in the oven if the wife or girlfriend sees them.
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Old 12-05-2012, 01:16 PM   #50
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I'll try the oven. Just curious: did you do the sludge trap with bearing and pinion in place, or did you remove them after the crank was out of the case?

Thanks!
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Old 12-05-2012, 02:13 PM   #51
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20 minutes at 250 didn't do anything. Even with a few gentle taps with a dead blow hammer.

Think I should try longer?



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Old 12-05-2012, 03:24 PM   #52
Voltaire
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by putting the whole thing in the oven it all expands at the same rate. This method works for just the crankcase prior to dropping the bearing ( which you put in the fridge before hand) in on assembly.
I'd use a heat gun around the bearing housing.
I take it you fitting new bearings after using a hammer on them.

The puller fits over the pinion gear and pulls off without heat....well it should do.

On the 650s the three gears have dots that line up for the cam timing with one keyway on each, although I have ones with 3 keyways that require dial guages to set up...

Earlier models have a timed cam breather but I'm not sure on the 750's.

Have fun with your Triumph.
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Old 12-05-2012, 04:58 PM   #53
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Well the puller came today and after a little bit of wrestling, I got it over the gear and without too much effort, the gear came off! Meanwhile the crank is still firmly stuck in the bearing, so I'm not done yet.

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Old 12-05-2012, 06:17 PM   #54
concours
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Chant with me.... heat gun, heat gun...
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Old 12-05-2012, 06:23 PM   #55
concours
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Quote:
Originally Posted by bagpiper22 View Post
Well the puller came today and after a little bit of wrestling, I got it over the gear and without too much effort, the gear came off! Meanwhile the crank is still firmly stuck in the bearing, so I'm not done yet.

Don't feel bad, my crank inside the bearing had been peened over with an AIR HAMMER!
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Old 12-05-2012, 06:41 PM   #56
concours
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Originally Posted by marksbonneville View Post
Remove the oil pump as you might as well replace the gasket anyhow. I put mine in the oven at 250 but the crank and bearing fell out before that point, the pinion tool was a waste of money for me, could not hold up to the pressure. Make sure you post pics of the parts in the oven if the wife or girlfriend sees them.
You got it all wrong... wifey went OUT for the evening so the three boys could shrink fit new sleeve in a Trident cylinder.. and drink beer
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Old 12-05-2012, 06:43 PM   #57
concours
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Quote:
Originally Posted by Voltaire View Post
by putting the whole thing in the oven it all expands at the same rate. This method works for just the crankcase prior to dropping the bearing ( which you put in the fridge before hand) in on assembly.
I'd use a heat gun around the bearing housing.
I take it you fitting new bearings after using a hammer on them.

The puller fits over the pinion gear and pulls off without heat....well it should do.

On the 650s the three gears have dots that line up for the cam timing with one keyway on each, although I have ones with 3 keyways that require dial guages to set up...

Earlier models have a timed cam breather but I'm not sure on the 750's.

Have fun with your Triumph.
+1000 RTFM... it's IN there!
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Old 12-05-2012, 06:46 PM   #58
bagpiper22
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I've got a heat gun (electric type) so I can use that tomorrow. I'm just happy to have the pinion off in one piece.
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Old 12-05-2012, 07:05 PM   #59
concours
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I've got a heat gun (electric type) so I can use that tomorrow. I'm just happy to have the pinion off in one piece.
Is it a for-real HeatMaster industrial gun? You may still need a bit of judiciously applied propane torch in the general area around the bearing. Good luck!
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Old 12-05-2012, 09:04 PM   #60
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I don't know if it's HeatMaster, but it's an industrial heat gun. I'll try that before anything else. It gets plenty hot.

I really appreciate all the help! I've gone through the manuals, watched all the videos, but when it doesn't do what it's supposd to, it's nice to have a group who've lived through it. Thanks.
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