Sounds like you have a vacuum leak. Call Jim Bell and run your problem by him. He will straighten it out for you if it is blower related. Good luck Skip

 

the coffee can lookin thing?

 

What kind of noise was your Kenne Bell making? I had a built short block put in the same time as my KB and noticed a new noise when I first drove it. Chalked it up to piston slap on the built motor, but upon listening under the hood found out it was coming from the KB. When I put a tighter belt on the KB (changed upper pulley) most of the noise went away. Let me know what you found out on yours.

Mark

 

It is hard to describe, but it was sorta like a clunking niose, but only when at idle.

It went away as soon as I got over 100 rpms.

 

Yes it's the cam creating low vac

 

I wish my truck had that kind of problem...

I would say that it's your cams.

 

Don what is your vacumn at idle? If you don't think its your cams it could be your by pass not functioning properly. Works 140 with out by pass was like 3 inches of vacumn at idle (brake issues) with by pass is about 14 (no problems).

Steve



<Duh... thanks for correction jarmstro

 

That is pretty much how I would describe the noise mine makes. Like I said, a tighter fitting belt took most of it away. Will be interested to hear if you needed repair.

Mark

 

The only time my truck sees 100rpm is when I just start it or when I turn it off. How exactly do you know the clunk happens at 100 rpm?

 

opps ment 1000 rpms

still must have been tired from FFW Virginia

 

PLEASE vacumn is measured in inches only. 30 inches of vacuum is perfect and cannot be attainable here on earth because it will crush whatever it draws the vacuum on. Outer space is a perfect vacuum. Trust me I dealt with this for many years.

Example:

A perfect vacuum would be one in which the absolute pressure would be zero (in any units).

That would normally occur when the amount of vacuum was 29.92 inches of mercury (meaning that the absolute pressure was 29.92 inches of mercury below the ambient atmospheric pressure).

Just for your information, 29.92 inches of mercury is equivalent to 760 millimeters of mercury or 14.696 pounds per square inch.

 

I agree. I've had that problem years ago with big, lope cams. the problem was helped by adding a vacuum canister.
JE

 

wow someone payed attention in skool

 

To quote Probie.....you have more problems than a math class!!!!

Sorry to hear about your trouble bro.

You comming by tomorrow or going to the cape????

 

Ok Im sorry about being the slow guy (or maybe just the drunk guy Ill know in the morning ), but could somebody pleeeeeease tell me what in the hell a supercharger has to do with breaks not working properly.