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Author Topic: First build ever  (Read 9219 times)

Offline teazer

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Re: First build ever
« Reply #130 on: Aug 01, 2017, 01:20:11 »
Valve guides should be pressed in with cold guides and a heated head if at all possible.

Offline onefromexile

  • Posts: 224
Re: First build ever
« Reply #131 on: Aug 01, 2017, 05:14:02 »
Valve guides should be pressed in with cold guides and a heated head if at all possible.
Yeah
I did that froze plugs and heated each  hole
I have them in it's very close
Iiterally need to go down about 1/4" to the the cir-clip
I didn't have to swing too hard
I'm prolly just worried too much
Hand driving I'll get em'




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Offline crazypj

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  • Split personality, I fake being smart
Re: First build ever
« Reply #132 on: Aug 01, 2017, 18:44:44 »
We didn't teach it but hand driving with hammer, use 4lb 'drilling' (or 'club' ) hammer.
One big hit works better than a lot of little taps and stops guide absorbing as much heat. You do need the 'tube' part that fit over driver to prevent guide going too far, the stock cast guides will fracture perfectly around the circlip groove if inserted too deep( seen it happen on brand new bike, came from factory with 'extra short two piece guides )
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline onefromexile

  • Posts: 224
Re: First build ever
« Reply #133 on: Aug 01, 2017, 19:20:33 »
We didn't teach it but hand driving with hammer, use 4lb 'drilling' (or 'club' ) hammer.
One big hit works better than a lot of little taps and stops guide absorbing as much heat. You do need the 'tube' part that fit over driver to prevent guide going too far, the stock cast guides will fracture perfectly around the circlip groove if inserted too deep( seen it happen on brand new bike, came from factory with 'extra short two piece guides )
I was able to get em in just did a couple hard hits each
I was just being a puss and over worried
I have bronze guides though too



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Offline crazypj

  • Posts: 12476
  • Split personality, I fake being smart
Re: First build ever
« Reply #134 on: Aug 01, 2017, 20:54:21 »
Bronze guides are 'better' as they won't crack but will probably 'shrink' so need reaming after fitting. Valve seats WILL need to be re-cut. I use 45, 70, 30 for three angles (mainly because they are the cutters I have  ;D )
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline onefromexile

  • Posts: 224
First build ever
« Reply #135 on: Aug 01, 2017, 21:06:53 »
Bronze guides are 'better' as they won't crack but will probably 'shrink' so need reaming after fitting. Valve seats WILL need to be re-cut. I use 45, 70, 30 for three angles (mainly because they are the cutters I have  ;D )
I'm going to have seats re-cut same place as my cylinder bores
We just don't have the tooling at the shop I do have a 7mm reamer (.270 )
I think is the size


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Reamers are not expensive but
The boring head I wanted and the cutters for valves are
but my boss wouldn't let me get unless I could show more than one use for it
He almost bought the boring head though cause we could have used a more rigid style than the two we have
« Last Edit: Aug 01, 2017, 21:10:18 by onefromexile »

Offline J-Rod10

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Re: First build ever
« Reply #136 on: Aug 01, 2017, 21:57:53 »
I'm going to have seats re-cut same place as my cylinder bores
We just don't have the tooling at the shop I do have a 7mm reamer (.270 )
I think is the size


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Reamers are not expensive but
The boring head I wanted and the cutters for valves are
but my boss wouldn't let me get unless I could show more than one use for it
He almost bought the boring head though cause we could have used a more rigid style than the two we have
.270 is 5 and a half thou off from 7mm.

Offline onefromexile

  • Posts: 224
First build ever
« Reply #137 on: Aug 01, 2017, 23:51:19 »
.270 is 5 and a half thou off from 7mm.
yes thankyou

If I recall my guide hole was .274
before driving into head
Now they are at .273
I'm using pin gauges .274 won't go
.273 goes
I have to ream holes anyways
if I don't have correct reamer size
We have tooling fastener supply next door so I can get same day
But I want to wait till new valves come so I can measure for sure
How close tolerance overall am I looking at trying to achieve ??
I'll have to go back to my service manual



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Finally got my forks
K6cb450 33mm
Wow they are so much beefier than stock 31mm
Had to grind down the steering lock
To fit the bottom triple and need a few wheel spacers but it looks so much better
I feel much better
And I have cl fork lowers so I can retain the drums up front too
Which I know people would advise disk are better yes
But I want the look to stay with the drums and scrambler high pipes
Mine was a cl360

« Last Edit: Aug 01, 2017, 23:59:28 by onefromexile »

Offline onefromexile

  • Posts: 224
First build ever
« Reply #138 on: Aug 02, 2017, 00:37:28 »
yes thankyou

If I recall my guide hole was .274
before driving into head
Now they are at .273
I'm using pin gauges .274 won't go
.273 goes
I have to ream holes anyways
if I don't have correct reamer size
We have tooling fastener supply next door so I can get same day
But I want to wait till new valves come so I can measure for sure
How close tolerance overall am I looking at trying to achieve ??
I'll have to go back to my service manual



Sent from my iPhone using DO THE TON
Finally got my forks
K6cb450 35mm
Wow they are so much beefier than stock 33mm
Had to grind down the steering lock
To fit the bottom triple and need a few wheel spacers but it looks so much better
I feel much better
And I have cl fork lowers so I can retain the drums up front too
Which I know people would advise disk are better yes
But I want the look to stay with the drums and scrambler high pipes
Mine was a cl360
I do think I'll go clubman bars
I'm not sure about clip ons for this because the tank comes pretty close for clips


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« Last Edit: Aug 02, 2017, 10:44:19 by onefromexile »

Offline onefromexile

  • Posts: 224
Re: First build ever
« Reply #139 on: Aug 12, 2017, 08:32:46 »
I do think I'll go clubman bars
I'm not sure about clip ons for this because the tank comes pretty close for clips


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Maybe another layer of cloth the strengthen but the shape and look I wanted is there
Will be going with clip ons
I just can't get past how top heavy clubman bars make the front look tall



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