Volvo 570A Holley 4150 Avenger Install - Throttle Bracket not available!-gctid809108

[renog]

I have a Volvo 570A (Chevy 350) original stock carb was a 4150 Holley;

I installed a new Holley 4150 Marine Avenger; it bolts up EXCEPT for the throttle bracket.

Holley suggested LOKAR or some other company for the connector but it seems nobody has one available.

Old Volvo Part numbers are 855747 Replaced by 856839,856876 but none of these are in stock at any dealers or online source I could find.

Does anybody have an idea for an alternative part? I'd like to keep the originall 33C cables, but the best I can figure is find a way to use a Mercury cable and re-cable, possibly need a new control box.

This old thread here shows the connector; a king of recangular thing that has a hole in it to accomodate additional throw from the 33C, mounted on a side plate to the carb with rivets.

http://www.baylinerownersclub.org/index.php/forum/technical-discussion/20909-holley-4175-install-questions#218659

Any ideas how to get one of these or a suitable replacement for the new 4150 carb?

I might try to drill out the rivets and bolt on, but I was hoping we could find a replacement or a source for the 855747, 856839, or 856876 that were designed to work with the holley carbs.

Part 2 of the question; the carb base gasket is another volvo part I cannot find; it looks like a half inch spacer; can I remove it and just put a paper base gasket, or should I be worried about losing the insulation property of the spacer and boiling over fuel?

Much thanks in advance.

1990 Volvo 570A (Chevy 350)


Attached files

[2850Bounty]

I would stay with the 33 C cable and keep looking for the correct throttle cable bracket.

[360_mafia]

Try marineparts.com and also dont leave auto sites like summitracing .com

Google your delima and you may find your answer on sites like hulltruth.com or iboats.com.Had a problem once finding parts for transmission on a boat.Had to go 6 pages deep on google before i found parts.Wish you luck

[renog]

I sawed the rivets off the original bracket, now I looked at the photos I took of the new carb, I don't think this will bolt up.

Of course I hit Google and went about 15 pages deep, spent about 12 hours so far and the only hit I found was the one on this forum; so I signed up!

Summit has a lot of parts listed, but so far I bought a bracket that holds the cable (unneeded waste of $50) and a 33C cable end that would bolt onto the carb and attach my cable... but the cable has too much throw; the adapters fit only if I use the throttle between 1/2 and 3/4 throttle; not enough room to back down to idle.

I was thinking of rigging up a eye bolt and a ball bearing on the carb, then a big nut and washer on the 33C end to give it more reach like the stock bracket; unless anyone has an idea how to get a 33C cable and typical throw working on a Holley 4150 style new carb.

I'll try LOKAR; that's where Holley sent me. I guess a few phone calls is my best bet at this point.

[builderdude]

"renog" post=809108 wrote:
Part 2 of the question; the carb base gasket is another volvo part I cannot find; it looks like a half inch spacer; can I remove it and just put a paper base gasket, or should I be worried about losing the insulation property of the spacer and boiling over fuel?

Could you possibly use the existing spacer with the addition of a thin paper gasket sealed to it on either side?

[renog]

the spacer/gasket is 27 years old. I'm going to just toss it and use a paper gasket, and use new carb studs so I can fit the whole thing under my engine cover. Right now it rocks the engine cover. Hopefully if I cn come down half an inch I'll be able to close and not rock the boat

About the bracket, I have a cable end (heim end?) I'm going to make something with sheet metal because so far nobody has this bracket in this photo:

http://www.hardin-marine.com/p-340-throttle-cable-installation-kit.aspx

actually here is the bracket I think I have to make and can't seem to find.

seems like no better ideas exist yet; even though I continue to spend about 2 hours a day looking for something to get me close.


Attached files

[2850Bounty]

I thought about your question a bit more and it led me to a question of my own.

Are you needing a carburetor throttle shaft cable bracket, or a throttle cable sheathe mounting bracket?


Attached files

[Guest]

I found this bracket about 3 years ago through a local marina's part department. The part number is 856839 on the part I received. The marina is Jackson Marina in North East, Maryland. Phone is 410-287-9400. Good luck.

[Guest]

The full part number was VOP 856839.

[renog]

I made it work!

For anyone else buying a new holley carb to replace a stock volvo carb, here is what I did to get a just like stock setup that works perfect.

On the old carb, I sawed off the rivets on the old bracket, volvo part number 856839.

This does not fit right on the new carb plate, so you need to bend the little tab that sticks out to make the whole thing flat.

Then bolt on your old throttle bracket on the bottom, then in the big hole in the holley with some extra big washers because it doesn't quite line up, but close enough.

Now I have a setup just like the original one! No messing with special 33C carb brackets, no heim ends. no adjusting cable throw, no trying to move the cable forward and only using 1/3 of the throttle play and no moving springs around.

I did buy heim ends, a 33C/morse throttle bracket, but attaching those was still going to give me too much action on the cable.

Unfortunately, my buddies at Holley must not sell many Volvo replacements or they would have a throttle plate adapter to do this.

Anyone else need help, send me a PM I'll give you the low down.