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Old 05-07-2017, 03:29 PM   #1961
Elffors
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Default Re: Blown 45 build

Took a look inside front barrel tonight. It looked good, well ok is a better word.
Ive had these pistons since before i solved the lean condition last summer and after i solved that i took a look at them and now they look the same. no added scoring of piston nor barrel.

Started bike and listen hard after the bad sound and found it.
Took off blowerbelt and listened after it and it was gone.

Primarychain on the otherside was making a racket touching inner sheet of primarycover. Couldnt adjust primarychain tension.
Are there more to it than the three transmissionbolts to the frame to adjust the trannny,?
Its been too long ive forgot how to do it.
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Old 05-07-2017, 11:54 PM   #1962
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Default Re: Blown 45 build

Should have the adjuster screw in the frame down by the bottom of the rear fender to adjust front or back . If you don't, loosen the 3 bolts underneath and use a crowbar or board between the seat post and tranny to leverage it back. The tranny adjusting screw also helps the tranny from moving forward. The bolt has a washer/shoulder on it that should fit in a groove in the back casting. 2 cents
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Old 05-08-2017, 10:48 AM   #1963
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Default Re: Blown 45 build

Ahh ok. havn't got that screw so ill resort to crowbar. A bit strange that it requires so much force to move back the tranny. usually when its this hard id forgot to loosen something.
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Old 05-08-2017, 01:07 PM   #1964
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Default Re: Blown 45 build

Did it move, and were you able to take the slack out of the primary?

Wonder why it was so hard to move, just adjusted the primary on my panhead, 5 bolts on that tranny, plus the adjustment bolt, and it moved quite easily, am just hoping I didn't make mine too tight, but with a brand new primary it should loosen up fairly quickly...

Willy
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Old 05-08-2017, 01:18 PM   #1965
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Default Re: Blown 45 build

Quote:
Originally Posted by 2Loose View Post
Did it move, and were you able to take the slack out of the primary?

Wonder why it was so hard to move, just adjusted the primary on my panhead, 5 bolts on that tranny, plus the adjustment bolt, and it moved quite easily, am just hoping I didn't make mine too tight, but with a brand new primary it should loosen up fairly quickly...

Willy
Ill wait til the kids are deep asleep ten i sneak out and find out.
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Old 05-08-2017, 01:20 PM   #1966
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Default Re: Blown 45 build

Crowbar and muscles...

How loose is loose?

I had the same noise on one of the pans. Inner rubbing. Was the primary that loosened up. The chain will need replaced next time. It was fresh..
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Old 05-09-2017, 03:38 PM   #1967
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Crowbar and muscles...

How loose is loose?

I had the same noise on one of the pans. Inner rubbing. Was the primary that loosened up. The chain will need replaced next time. It was fresh..
Some moron put a supercharger in there so theres no room for a crowbar

Dont you just hate it when theres signs of further investigations but you ignore them cause you just wanna slab it together and ride?

Exhaust valve was partially white on top while intake was sothy. Naa its hotter for the that poor sucker than it is for the intake, slabing it together.
Kicking it over i could here compression escaping somewhere. Comptest reveiled that front had 5.8:1 while rear had 6.7:1.

valves wasn't too tight.

so i had a cold one and then begun stripping it down again to lap the valve.

an hour later i was holding the barrel in my hand and i filled the ports with E85 to see if it would leak by the valves, but lo and behold they held tight as lizards ass.
Then it struck me that i touched the rings so they rotated so they are unseated again.
A serious builder would atleast fitted new rings, but not me..
Its always my unseriousness thats comming back to bite me but i just immune to learning.
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Old 05-10-2017, 01:20 AM   #1968
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Default Re: Blown 45 build

Aren't we all? Its the fun part. If we did it right the first time nothing would ever be modified to be better.

Make mistakes at 100%.
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Old 05-10-2017, 01:00 PM   #1969
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Default Re: Blown 45 build

Its kinda sad that forums are slowly dying. I grew up digitally on forums and loved the wittyness, bantering and keybord fighting.
When they started to die i tested instagram it was great but in the end its all about likes and mathematics.
If i like something i get similar pics and the ones i like about them forms what comes next. All i see now is knucks, hotrods front engine dragsters and ass. I didnt even liked an asspic i just looked at it a little longer than the 11th knuck that came before.

If you would like to get many likes you post cool stuff with a short cool sentence. After awhile i missed my forums where i can post ordinary stuff and ramble on forever about my own fakk ups.
And how fun is it to see a hundred pics of almost the same bikes and cars? Its like having your favorite meal 3 times a day every day.

Naah lets go fakk up some innocent metalpieces
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Old 05-10-2017, 05:05 PM   #1970
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Default Re: Blown 45 build

This is the only bike forum I visit. With nothing much to compare it to, I appreciate the JJ a great deal and hope you verbose motorheads keep posting good long posts (with pictures).
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Old 05-10-2017, 11:30 PM   #1971
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Default Re: Blown 45 build

Yes. Pictures.
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Old 05-11-2017, 03:08 AM   #1972
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Default Re: Blown 45 build

The "choppercompendium" site is a good one ! You can download blueprints for frames , forks (girders and springers) and browse thru a ton of tech articles going back for years !
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Old 05-11-2017, 03:33 AM   #1973
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Default Re: Blown 45 build

Quote:
Originally Posted by Elffors View Post
Its kinda sad that forums are slowly dying. I grew up digitally on forums and loved the wittyness, bantering and keybord fighting.
When they started to die i tested instagram it was great but in the end its all about likes and mathematics.
If i like something i get similar pics and the ones i like about them forms what comes next. All i see now is knucks, hotrods front engine dragsters and ass. I didnt even liked an asspic i just looked at it a little longer than the 11th knuck that came before.

If you would like to get many likes you post cool stuff with a short cool sentence. After awhile i missed my forums where i can post ordinary stuff and ramble on forever about my own fakk ups.
And how fun is it to see a hundred pics of almost the same bikes and cars? Its like having your favorite meal 3 times a day every day.

Naah lets go fakk up some innocent metalpieces

i couldn't agree more.
message boards are great, i cannot do without them.
it's a great journey, this one.


on your primary chain:

the lower part of the tranny, that slides back and forth
in the frame opening, often wears out,
causing the transmission to rotate a little,
fucking up your chain tension (and chain).
i've seen it on several bikes. a spacer brings help.

also, if you get the chain tightened, kick the bike over slowly
and check if tension is the same throughout the turn of the clutch.
i had the problem that my primary chain had lenghtend unevenly,
so it was impossible to get it right. it was rock hard on the top
but i could still lift the chain links off the clutch sprocket at 90...
a real pain in the ass,
so i finally converted to belt drive to get rid of it.

i think the chain is rather flimsy, regarding your supercharger and all,
so maybe you just wrecked it with all the power you've got now

glad your engine is ok, i got scared when i opened the thread and saw it torn open
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Old 05-11-2017, 02:21 PM   #1974
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Default Re: Blown 45 build

Heres one for ya jaws. Stack is progressing
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Old 05-11-2017, 08:05 PM   #1975
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Default Re: Blown 45 build

Kool. I love the look of the sidebowl SU with a stack. I have a little 1.25" bore of the same that I am holding onto because of this bike. If I ever find a 45" it'll have a home. Unrelated tp anything new but I also love your cam profiles. Very Leineweber-esque.
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Old 05-11-2017, 08:43 PM   #1976
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Default Re: Blown 45 build

Quote:
Originally Posted by Wisco Cal View Post
Kool. I love the look of the sidebowl SU with a stack. I have a little 1.25" bore of the same that I am holding onto because of this bike. If I ever find a 45" it'll have a home. Unrelated tp anything new but I also love your cam profiles. Very Leineweber-esque.
Man I love this thread, keep it up !!
Willy
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Old 05-11-2017, 09:11 PM   #1977
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Default Re: Blown 45 build

Quote:
Originally Posted by Wisco Cal View Post
Kool. I love the look of the sidebowl SU with a stack. I have a little 1.25" bore of the same that I am holding onto because of this bike. If I ever find a 45" it'll have a home. Unrelated tp anything new but I also love your cam profiles. Very Leineweber-esque.
I ran a stack very similar to that on my 62 in the mid 70's
at speed it would drastically lose power
unless i tucked my leg in behind it and deflected air into the horn
i figured a vacuum formed at the bell entrance by the passing air as speed increased
my leg would disrupt that
So i put a foam 'sock' on the stack
no more problems
you can see the sock in this old pic

my son Vincent is now 50
in that pic he was what, 7 maybe?
so 43 years ago?
1974?

Last edited by 2Loose; 05-11-2017 at 09:22 PM.
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Old 05-11-2017, 11:52 PM   #1978
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Default Re: Blown 45 build

I like this one better Jon.
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Old 05-12-2017, 06:57 AM   #1979
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Default

Quote:
Originally Posted by 2Loose View Post
Quote:
Originally Posted by Wisco Cal View Post
Kool. I love the look of the sidebowl SU with a stack. I have a little 1.25" bore of the same that I am holding onto because of this bike. If I ever find a 45" it'll have a home. Unrelated tp anything new but I also love your cam profiles. Very Leineweber-esque.
I ran a stack very similar to that on my 62 in the mid 70's
at speed it would drastically lose power
unless i tucked my leg in behind it and deflected air into the horn
i figured a vacuum formed at the bell entrance by the passing air as speed increased
my leg would disrupt that
So i put a foam 'sock' on the stack
no more problems
you can see the sock in this old pic

my son Vincent is now 50
in that pic he was what, 7 maybe?
so 43 years ago?
1974?


Thanks Willy! And for that reason I must run a airdeflector on the stack. Combined with a poorly adjusted carb and condensation of fuel in the manifold makes for a unsmooth ride. But man does it bark when the stars align!!
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Old 05-23-2017, 01:14 PM   #1980
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Default Re: Blown 45 build




Ive had troubles with weird noises on and off for 4seasons now. Ive suspected the engine itself many times. I also suspected rivets on blower and primarychains touching each other. i eliminated that cuz i dont tolerate touching of others moving private parts, by installing belt drive further away from primarychain.
Turned out that it was a bracket for a bellcrank on my shifting mechanism bending under load allowing the bellcrank to touch primarychain. As time passes the bracket gets more and more out of shape and the racket increases. Deep down i knowed this al along cus i straightened the bracket a couple of times. But yesterday i made a bracket holding the first bracket and everything is much stiffer. Shifting action feels alot less spongy. Cant wait to take it for a spin!
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