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Author Topic: 1982 CB750F... The resto-not  (Read 29461 times)

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #650 on: Jul 23, 2019, 21:25:51 »
No worries mate, the bolts come with some instructions re. torque specs - you don't whale on them as hard as you would the OEM steel.

I decided against new stainless bolts for the case halves, and took my crusty old ones to get re-zinked today instead.  Way cheaper, and - hopefully - spiffy too.
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline cb250nproject

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Re: 1982 CB750F... The resto-not
« Reply #651 on: Jul 24, 2019, 02:25:47 »
It looks dam nice black with stainless, makes them
Pop even more


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first cafe build was an incomplete learning experience, more of a test run for the real thing FRANKENHONDA II

Offline CrabsAndCylinders

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Re: 1982 CB750F... The resto-not
« Reply #652 on: Jul 24, 2019, 03:38:52 »
I have always used Blue Loctite and had no problems when using SS bolts in aluminum...

https://www.sailnet.com/forums/gear-maintenance/49514-what-type-thread-sealant-ss-aluminum.html
Lighter, Quicker, Faster.
ZX-14, 900F x 2, 1100F, R100, CBR600, SR500, GT500, RZ350, KZ1000 x 2, Moto Guzzi Lemans lll, CBX550, RD 350, 750 SOHC police special, RG250, TL1000R, GT750, KTM Super Duke 1290 R, Harris/Z-1, Norton 750 Commando, Green 77 KZ650

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #653 on: Jul 29, 2019, 21:58:05 »
Stuff's starting to arrive now, primary chain and a few o rings are on their way and then I can start to reassemble the engine -



- at least I hope I can.  Went with the yellow (loosest) crank bearings as it was impossible to see what colour the bearings were that needed replacing.  I'll plastiguage the clearances and all being well I can start the rebuild.  BorgWarner cam chain which I'm assured is the business and some new primary shaft rubber dampers to replace the knackered and plasticized old ones.

Also had to repaint a couple of the engine side covers as they came out looking a bit grainy.  Wet sanded then resprayed, think I'm good.  Better anyway.
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #654 on: Jul 30, 2019, 12:43:29 »
Need to measure the crankshaft journals but don't have a micrometer.  I'm looking for one online but there seems to be a lot of variation in both price and accuracy.  I don't want to break the bank on this thing but need a halfway decent one.  Anyone give me some real world feedback on an affordable brand?
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #655 on: Jul 30, 2019, 21:16:51 »
Took advco's advice and took the crank to a local machine shop to get the journals measured accurately.  Glad I did too - the two old boys Jean and Gin had 100 years of experience between them and worked in a shop that looked like it had been around since the ark.  Definitely the right place.  Lovely blokes too - measured the journals for free, gave me a bunch of help and then offered me a job.  Old school cool.
« Last Edit: Jul 30, 2019, 21:18:23 by Jimbonaut »
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #656 on: Jul 31, 2019, 23:28:35 »
I ended up buying a 1-2" micrometer, new digital caliper and whatever those T shape whatnots are called used for measuring the ID's of cylinders etc.  All from Accusize.  I'll take the micrometer to my new friend Jean's shop and have it calibrated, and will report back on its accuracy. 

I know.  Exciting shit.
"I'm telling you Donnie, nuthin' but nuthin' but right"


Offline canyoncarver

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Re: 1982 CB750F... The resto-not
« Reply #658 on: Aug 04, 2019, 18:03:30 »
I ended up buying a 1-2" micrometer, new digital caliper and whatever those T shape whatnots are called used for measuring the ID's of cylinders etc.  All from Accusize.  I'll take the micrometer to my new friend Jean's shop and have it calibrated, and will report back on its accuracy. 

I know.  Exciting shit.

Cool tools FTW!

Offline Jimbonaut

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Re: 1982 CB750F... The resto-not
« Reply #659 on: Aug 07, 2019, 15:37:20 »
August 7th, big day...

"I'm telling you Donnie, nuthin' but nuthin' but right"