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CV Carburator Supports

Started by dirtymike, November 20, 2014, 02:09:35 PM

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dirtymike

Fitted The carb supports to the Shovel head. Started her up and gas poured out the overflow.Adjusted the float and all is good. Anybody else got any Idea's s on how to secure these CV' to shovel's other than the head.





Tight fit Bill on the throttle cable, don't know if there is room for the idle cable.   

Racepres

That's how I did mine.
Do you have a real air cleaner in that box???

billbuilds

#2
        I used only one bracket from the backer plate to the front rocker box.   I'd recommend using blue Loctite on the rocker box bolt, I sure found it necessary. Bill[attach=0]
Anybody who tries to tell you that the press is the enemy of the people is just that.

Racepres

Quote from: billbuilds on November 20, 2014, 05:06:40 PM
        I used only one bracket from the backer plate to the front rocker box.   I'd recommend using blue Loctite on the rocker box bolt, I sure found it necessary. Bill
Huh...I use Blue loctite on everything...that way nothing gets "forgotten"

billbuilds

Quote from: Racepres on November 20, 2014, 06:20:09 PM
Quote from: billbuilds on November 20, 2014, 05:06:40 PM
        I used only one bracket from the backer plate to the front rocker box.   I'd recommend using blue Loctite on the rocker box bolt, I sure found it necessary. Bill
Huh...I use Blue loctite on everything...that way nothing gets "forgotten"

Huh to you too.  :wtf: 
Anybody who tries to tell you that the press is the enemy of the people is just that.

Julio

Quote from: dirtymike on November 20, 2014, 02:09:35 PM

Tight fit Bill on the throttle cable, don't know if there is room for the idle cable.

Sportster CVs have a different cable bracket than the ones on the BT. The brackets on the BT carb is more slanted to allow room for the gas tank. The Sportster's CV bracket is almost vertical and if you use one on a bike with fatbobs, the cables will scratch up the bottom of the tanks.

J

Racepres

#6
Quote from: Julio on November 20, 2014, 07:23:42 PM
Quote from: dirtymike on November 20, 2014, 02:09:35 PM

Tight fit Bill on the throttle cable, don't know if there is room for the idle cable.

Sportster CVs have a different cable bracket than the ones on the BT. The brackets on the BT carb is more slanted to allow room for the gas tank. The Sportster's CV bracket is almost vertical and if you use one on a bike with fatbobs, the cables will scratch up the bottom of the tanks.
J
Yes...Found that also...There is a Single cable one also...don't know the application...luckily thay all seem to interchange...I dont have a "return" cable on mine. Working fine.

CraigArizona85248

Another option is to run a support bracket from the case bolt between the cylinder up to the bottom bolt attaching the carb to the intake. Or you can fix the bracket to the backing plate of the air cleaner like in this photo.


-Craig


[attach=0]

Racepres

Quote from: CraigArizona85248 on November 20, 2014, 08:41:08 PM
Another option is to run a support bracket from the case bolt between the cylinder up to the bottom bolt attaching the carb to the intake. Or you can fix the bracket to the backing plate of the air cleaner like in this photo.
-Craig

I did that one with my S&S figgered it would be fine when I switched to CV...Not so! it was Not sufficient. I had to Support my CV at the Aircleaner to some point [like the Rocker on late models] more outboard. I'm saying using the S&S method of supporting at the manifold via the case bolt was Not Sufficient. Reaching out to the aircleaner as shown...IDK, Prolly OK

96flhpi

 :agree:

When I had a support straight up to the manifold it lasted about 2 weeks before the intake popped off.  I've had the angled support to 
the air cleaner like in Craig's pic and it's been fine for many years.

76shuvlinoff

#10
Did mine like Bill's,
Heated and bent the bracket out a  bit then I put a 3/8" spacer between the backing plate and the bracket. If I hadn't used the insulator block at the manifold there wouldn't be a spacer.  Drilled a hole on the back plate, bolt head on the inside, lock washer and locktited nut on the outside. Been about 4 years and two CV carbs now, zero issues.

edit to add: I have always ran only a single cable on my Es and my CVs. There's plenty of return spring on em and a kill switch on the right bar. If I can trust the NO cables on my 12 I can get by with one.



Critics are men who watch a battle from a high place, then come down and shoot the survivors.
 - Ernest Hemingway

dirtymike

Its just mocked up for now(tight). It runs alot better with the 48/190 jets and the CVP needle. I used the isolator block and the S&S 158 intake, I think the answer to the hesitation was the Flange adapter. I dont think i have any leaks now, Thanks for all your advise everybody. It might be colder than Wiz but im going to see how she does with a load. I still have to either paint them on get them chromed. My pocket says paint. I've used so much blue lock tight thru the years i think i have stock in the company. Cant do with out it. There is a real air cleaner in the box. I dont run one without it. The backing plate is a 90's model with the vent holes on top. At least i think its for the vents. Used a counter sunk SS Phillips bolt to connect to support. A torch and a hammer and patience. Thanks Dirty

dirtymike

Murhpy's law prevailed this morning. Battery dead, got to 25 last night. The only problem i got so far is the enricher knob will not pull all the way out. I have the carb so close to the tank it wont pull all the way up(see pic). Oh well, time for some jeffro siphering, Dirty   

Racepres

Quote from: dirtymike on November 21, 2014, 06:19:48 AM
Murhpy's law prevailed this morning. Battery dead, got to 25 last night. The only problem i got so far is the enricher knob will not pull all the way out. I have the carb so close to the tank it wont pull all the way up(see pic). Oh well, time for some jeffro siphering, Dirty

The enricher should Not have to be pulled all the way...It begins to function as soon as it is "off the seat" maybe not as Rich .. but, It'll work

BKACHE

[attach=0]  Here is how I do it. Attach a muffler hanger bracket to the middle case bolt between the cyls. Then a bolt holds it to the second hangar bracket from the back of the air cleaner plate. Bolted together between the 2 carb bowl standoffs. This takes the downward weight and the head bands seem to do the trick side to side.
Dan     
Dan

dirtymike


Racepres

Quote from: dirtymike on November 21, 2014, 11:59:21 AM
Is that a CV or an S&S carb

That's an S&S...I can see the enricher..Probably a "B"
But the principle applies...Support at the air cleaner backing plate.

rageglide

#17
I support an SU (edit - much heavier non standard carb) from bottom similar to what BKACHE shows.  Between the lower manifold bolt and the center case bolt.   Plus two upper brackets to stabilize things.

more edit -  If you've got a bar mounted kill switch, run the CV with only a throttle cable, it's got 2 throttle return springs IMO it'll be fine.   The kill switch will be added insurance.  I haven't run an idle cable for almost 20 yrs (with exception of my 2005 roadglide because of the cruise control interlock).

76shuvlinoff

#18
And you can always stick your CV enrichener over under the left tank.

(Crappy picture but you get the picture.. )

Critics are men who watch a battle from a high place, then come down and shoot the survivors.
 - Ernest Hemingway

LoRydr

#19
This is what I use for support. The top of the bracket is joined to the lower bolt of the manifold to carb. The bottom is connected to the case.


Racepres

Quote from: 76shuvlinoff on November 21, 2014, 02:43:10 PM
And you can always stick your CV enrichener over under the left tank.

(Crappy picture but you get the picture.. )



Again...That's how mine is...

96flhpi

Quote from: Racepres on November 21, 2014, 05:36:35 PM
Quote from: 76shuvlinoff on November 21, 2014, 02:43:10 PM
And you can always stick your CV enrichener over under the left tank.

(Crappy picture but you get the picture.. )



Again...That's how mine is...

I got a stock motor mount with the choke mount built in - made the hole bigger and cut a slot to get the cable in and out.

Racepres

Quote from: LoRydr on November 21, 2014, 04:32:21 PM
This is what I use for support. The top of the bracket is joined to the lower bolt of the manifold to carb. The bottom is connected to the case.



This is What I am saying Is Not the way...if you have an S&S it's fine, probably a bendix..etc..also..Not with the CV with the rigid adapter...Ya have to support at the air cleaner...Already tried it...

catmcaw

  I remember at one time there was a post that if a enricher cable had a sharp bend ( like 1st pic ) it would pull enricher off the seat. Anybody out there have that problem?

dirtymike

I'll try to find the post. Seems plausible.