T140 Bonneville street tracker-kind of mix project ODDISEY - Page 3 - The Jockey Journal Board

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Old 08-27-2011, 02:13 PM   #41
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

more pics
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Old 08-28-2011, 10:46 PM   #42
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...ok, thanks fellas; think that now I do not have doubts about the bottom end.
I ll try to find the bolts and make the stud.
Next week I ll start with the 500cc engine and continue with the 750cc.
Ill post pictures of the process.

thanks again
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Old 11-30-2011, 02:12 PM   #43
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...very late with the updates, but as previously commented, I put my free time and money to rebuild the pre unit motor, I just finished few weeks ago, so now Im on the road again (well, I was using my Vespa style scooter to take the road...)

anyway, here some photos about doing the crankshaft plug.
Cut the head of an Allen screw, then Bronze was used.










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Old 12-05-2011, 06:11 PM   #44
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...more nightmares...due to the broked conrod that I had on the pre unit I decided to buy new pair for this engine; not necessary you would say.
So I have new con rods, new shells, and checked the crankshaft with a micrometer and have the STD measures that the manual say and seems that is not oval.
when I started to put the new conrods, one is in a perfec fit with the torque set of 22lbs, the other failed to fit well, not have a "free", lose movement.

-Also, the conrod sports a not centered "hole", is kind of thinner (the material) in one side of the ("shoe"-the bottom part-).

So another thing that the British shops sent me wrong.

-Some say to use a fine grit sandpaper, like 2000 or 2500 grit or scuff with aluminum sponge in the small bearing areas where seem problematic

Is that a safety procedure?

thanks in advance


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Old 12-07-2011, 09:51 AM   #45
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...bump this because I really need opinions on the subject
thanks
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Old 12-13-2011, 06:47 PM   #46
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...well, no opinions so I decided to go with the aluminum fibers (the ones that in the past the grandma uses to polish tins)
I did some test with 2500 grit sandpaper and 3000 grit (that s the finer grit) and the aluminum wool seems finer yet; so I passed, with Kerosene, a bit on the problematic areas, clean and polish with a paste; clean again and fit on the con rods, torque set and see; then again until the conrod was fine on the crankshaft.

-Also I tested the original conrod with the old shells but lack of movement as the spare conrod...very strange I must say.

Then I removed the outer race welding a rod and a hit with a hammer.








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Old 12-16-2011, 05:44 PM   #47
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...I tell ya that almost impossible to fit some items without a press...
In this case, the part of the bearing that goes to the cases, fits without hassles by hand without any force after heating
but the parts that go in the crankshaft is not possible to fit without a press.
The inner race in the triple roller bearing was too tight.
-I did a "pile" of sockets to apply the press, due to the shaft

-I put as per the "late" book, a C2 and C3 clearence roller bearings.









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Old 12-16-2011, 05:57 PM   #48
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

keep the updates coming love watching the progress

Ryanm
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Old 12-16-2011, 06:04 PM   #49
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

good work.
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Old 12-18-2011, 12:28 PM   #50
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...hello Ryanm, yes, I ll try to put some of the steps due to the real difficulties that any one can find.
I mean, I have w shop manuals, owners manuals, Haynes manuals, the Wes DVD and I tell ya that NEVER is an easy task, like those manuals say...you always in need to improvise something
I know a lot about it from my 48 pre unit...so old and with miles that when you rebuild you need lot of experience or friends who are mechanics (real ones) and know the stuff to solve problems (a lot!)
Also, you really need ALL the tools; more in the old pre units.

Hello Redasphalt3, thanks

--I see that the 750cc do not have oil seal in the drive side of the crankshaft but what happend with the dust or "residue" of the clutch regarding bearing??

Also, what s exactly these 3 tiny holes do? help with the air release? Im asking because if you do not have oil seal why you want those holes?

thanks

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Old 12-18-2011, 01:08 PM   #51
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Hey, good on ya,for all your efforts. Wish I could give some insight, but have Zero experience with Triumphs. I would think (hope) that others would post. I know there has to be some knowledgeable Triumph guys on here. I really feel for you, as it seems to be a struggle to get parts (the right parts anyways) in the remote area you're at. Good luck, and keep posting!
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Old 12-19-2011, 06:39 PM   #52
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...thanks man, I really hope that one of the 750 guys can answer that question...or a clever person than me, because I do not know how these particulary engines manage to not enter to the bearing or motor, the "dirt" accumulated in the primary due to the clutch
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Old 12-21-2011, 11:31 AM   #53
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

A rice mechanic told me once to put bearings in the freezer overnite and case halve in the oven for a couple of hours and 8 times outta 10 bearings slide in with hardly any effort, never tried it myself though. Cant see that it would hurt to try. Ski
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Old 12-21-2011, 11:51 AM   #54
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Nice engine work. It brings back memories of when I build my Triumph engine. That sure does seem like a long time ago now!

Cheers Dan.
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Old 12-21-2011, 11:54 AM   #55
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Quote:
Originally Posted by reverb View Post
--I see that the 750cc do not have oil seal in the drive side of the crankshaft but what happend with the dust or "residue" of the clutch regarding bearing??

Also, what s exactly these 3 tiny holes do? help with the air release? Im asking because if you do not have oil seal why you want those holes?
The 750cc's don't have an oil seal because the crank and primary share oil. The 3 holes lets the oil equalize between the primary and the sump.
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Old 12-21-2011, 06:07 PM   #56
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Are the 650s the same? It seems crazy for it to share crank oil with clutch oil doesnt it? Is this why the sludge traps are always so nasty(clutch fiber residue)?
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Old 12-21-2011, 07:38 PM   #57
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Quote:
Originally Posted by Ski View Post
A rice mechanic told me once to put bearings in the freezer overnite and case halve in the oven for a couple of hours and 8 times outta 10 bearings slide in with hardly any effort, never tried it myself though. Cant see that it would hurt to try. Ski
I build T58 turbine engines for the USMC, and we do this. We heat any press fit bearing races in the oven to push them on shafts, and we freeze seals to pus them into cases. Our bearings are never heated over 300 degrees, it'll degrade the intgretity of the bearing. And when your talking a turbine engine making 2200 shaft hp and spinning 28000 rpm, you want it perfect. This bike build is coming along great, you went through more hell than most would to get it man. Keep up the good work
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Old 12-21-2011, 08:13 PM   #58
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

Holy shit I missed this one!
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Old 12-23-2011, 07:08 AM   #59
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

...hello Ski,
yes, as in the pictures, the part that goes in the halves fitted without effort but the races to the crankshaft are not possible to heat...so there the press is the solution to not damage anything.

-Danboy, thanks

-Justrob, I see why those are so tiny and are bellow the bearing...however still you have the rod bearing shells contaminated with clutch oil

-Crawler07, possibly due to that they put an oil filter on the line.

-Spots, again, the races to the crankshaft are instantly done with a press without any damage.

-Richard D, keep passing

Here s few pictures with the crankshaft installed and the timing set up:
*as mentioned in the first page of this thread, the motor came with the old timing gears, the ones with A - B letters.
*I trimmed all the silicone excess.
*The bolts and nut are stainless steel, so I used the oil that comes with the spokes to torque them







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Old 12-23-2011, 10:11 AM   #60
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Default Re: T140 Bonneville street tracker-kind of mix project ODDISEY

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I usually use a piece of aluminium to do the same job, I'd be worried about harming the gears with a screwdriver.
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