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Discussion Starter · #1 ·
I have reason to believe that my power valve has blown in my 3310 holley. I removed the front fuel bowl but I don't know how to remove the valve. My Holley performance book says I need a 1 inch wrench to remove it but it's nowhere near that size and it's round and not hex head. Am I looking at the right thing? Is it located above the two main jets?
 

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Pull the metering block off, you are seeing the backside of the PV. Once you get the next plate off, you'll see the 1 inch hex
 

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Discussion Starter · #3 ·
Oh...I understad now. Can I do all this with the carb. still on the engine?
 

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Yes. You'll need something to remove the metering block. Putty knife, screwdriver may be good choices... The gasket usually sticks to the metering block making it tough to separate.
HTH
 

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Discussion Starter · #5 ·
In other words, I'm going to need a gasket set before I do this?
 

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yes!! And may I recommend some Non-stick gaskets from moroso?
they are made of rubber and are good for "life" they are pricey but after you spend 30 minutes cleaning off the sticky holley stock gaskets, I think youll agree that they are worth the money. I sure did!
I also have the nylon bowl screw gaskets that act as the washers. they last forever also.
heres a summit racing link
http://store.summitracing.com/default.asp?Ntt=moroso+holley&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp
just brows the parts and youll see the gaskets.

Anyways when running a holley you should always pick up a rebuild kit for the other gaskets and assorted hardware that it always has. Just throw away the stock Bowl gaskets.
Good luck with the power valve issue.
 

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Discussion Starter · #7 ·
Ok, I got the PV out today. I was told to clean it off and suck on the flat end to see if I can pull the plunger back......and I can't...so it's bad right? Do you have to be superman to be able to suck the plunger back because I can't, no matter how hard I try.



<font size=-1>[ This Message was edited by: 82GT on 3/7/06 7:56am ]</font>
 

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Discussion Starter · #9 ·
On 2006-03-06 15:57, fastranger wrote:
How did you know you had a bad power valve?What was the
symtoms...?
THANKS
Because it started fouling plugs, which it NEVER did before. I installed a new set of plugs and they were completely black within 5 minutes of idling. Plus, it just didn't sound quite right.
I didn't know for sure if it was the PV or not....it was just one of the first things I checked.
I'm waiting for someome to tell me if I checked it correctly or not and if, indeed, my PV is bad.
 

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For future reference. Put some ChapStick on the gaskets prior to install, Even the cheap ones come off good using ChapStick.
 

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Discussion Starter · #11 ·
On 2006-03-06 17:35, wildosvt01 wrote:
For future reference. Put some ChapStick on the gaskets prior to install, Even the cheap ones come off good using ChapStick.
When I took the fuel bowl off and primary plate, I discovered it already had the blue, non-stick, gaskets.
So, is my PV bad?
 

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The power valve is about $5. If you cant make it cycle back and forth with your sucking on it then its prob got a hole in it. Sounds like you might have had a sneeze through the carb and it popped it?
Thats the really the only reason i can think of why it might have gone bad.
 

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Discussion Starter · #13 ·
On 2006-03-06 18:13, 71hotrodpinto wrote:
The power valve is about $5. If you cant make it cycle back and forth with your sucking on it then its prob got a hole in it. Sounds like you might have had a sneeze through the carb and it popped it?
Thats the really the only reason i can think of why it might have gone bad.
Yeah, come to think of it, it did spit through the carb. a few times before. My car sets in the garage during the winter and I go out once a month to start it up. It's sometimes really cold out and doesn't like to start when it's extremely cold and that's when it sometimes spits through the carb.

BTW, I like your car! I've always wanted a V-8 pinto and would like to have one someday.
 

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hey thanks,! Yah maybe ill get to actually hear it run and drive it before this years up ! LOL

Anyways ,heres a question for all interested.
There is a kit for the power valve blowout protection but its only listed for the 4000 series of carbs.
Is his 3310 imune from this problem or what?? whats the difference?
 

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Discussion Starter · #15 ·
The 3310 is also in the 4160 catagory. I'm not sure how that all works though.
 

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No difference. If you look in the PV chamber, you'll see a small hole in the bottom. That leads to the bottom of the carb where it can pick up manifold vacuum. The PV protection deal is just a little check valve, so the kit is probably a small drill and the check ball assy - you drill the base plate of the carb and press in the checkball. The newer 3310s will have this installed already. As also pointed out, PV are $5 at about any autopart store - don't test, just toss and replace. The PV gaskets don't seem to last long with oxygenated fuels - they don't seem to last long period. About a year or so.

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<font size=-1>[ This Message was edited by: ckelly on 3/7/06 10:38pm ]</font>
 
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