Mid- Engine Modified Sports

[Stan Back]

Not that I get around much, but I've never seen 3/16" flanges (ours are 3/8").  But the explanation makes sense. With as thin as the flange is, I'd use as big (and thick) a washer that would fit.  Might even contour some around the pipes if needed.

[manta22]

Last week I thought I was going to fire up the engine for the first time. I topped up the charge on the battery, checked for spark and saw a nice fat spark out of the Crane HI-6. I cranked the engine over to build up oil pressure and that looked OK. I switched off the ignition and switched on the electric fuel pump- arrggghhh fuel leaks in the carb fuel bowls. The gaskets were new and the screws were tight but there was gas leaking through the gaskets. These were new "non-stick" fiber gaskets from a Holley rebuild kit and the gasket surfaces were in good shape so there seems to be no other explanation than these gaskets are NFG. I wonder if this Holley rebuild kit is a counterfeit instead of genuine Holley.

In any case, I ordered new gaskets directly from Speedway Motors (due tomorrow), this time I'll try the Buna-N "non-stick" gaskets. These should solve the leak problem. Before this I had not realized that there were different gasket choices for Holley double-pumpers.
Has anyone else had problems with counterfeit fiber gaskets?

[Seldom Seen Slim]

Don said:   "...The downside to 12 point is that you can't use an open end wrench on them."

Hunh?  A wrench?  Why would you?  I thought those 12pt heads were designed for guys with versatile Vise Grips and Channel Locks.

[manta22]

Don said:   "...The downside to 12 point is that you can't use an open end wrench on them."

Hunh?  A wrench?  Why would you?  I thought those 12pt heads were designed for guys with versatile Vise Grips and Channel Locks.

Well sure, Jon. Those heads are designed to give you a non-slip grip with gas pliers. They aren't too good for Crescent wrenches, though. 

Regards, Neil  Tucson, AZ

[Seldom Seen Slim]

Neil, you date yourself when you call 'em "gas pliers".  I haven't heard that name in a while. . .at least since Dad died.

[manta22]

You're 10 years behind me, Jon. Does this qualify you as a "young whippersnapper"? 

Regards, Neil  Tucson, AZ

[jdincau]

My dad called them "water pump pliers"

[Seldom Seen Slim]

Not to further the hijack, but to further the hijack, how many remember when water pumps had 1725 rpm motors and turned the single cyl water pump that froze up lots during the winter?

[salt27]

Don said:   "...The downside to 12 point is that you can't use an open end wrench on them."

Hunh?  A wrench?  Why would you?  I thought those 12pt heads were designed for guys with versatile Vise Grips and Channel Locks.

Jon, For one of my engines I used all ARP 12pt fasteners.

They worked well and looked very nice while the engine was on the stand but once in the car they became a PITA.

My dad called them water pump plies too, I never did ask him why.  

Don

[jdincau]

Because water pumps used to have a packing gland on the shaft that had to be tightened to slow down the leak. Notice I said slow down not stop.

[Stan Back]

. . . to tighten the packing nut on early automotive water pumps.

(Beat me to it.)

[Buickguy3]

  Had to have some leak or you would burn up the seal. I worked in the ice cream business and all of our refrigeration was with Ammonia and the seals were fed pressurized oil and had a drip catcher on the outside of the pump that you had to empty daily. The seals were graphite/rope packing backed up with layers of lead and every few years you had to dig the lead out and replace it all. Today a seal kit that you can hold in the palm of your hand costs about $600.
   Doug 

[manta22]

OK, back to the gasket question...  ... has anyone had problems with Holley gaskets leaking?

Regards, Neil  Tucson, AZ

[manta22]

I received part of my order, the metering block gaskets are shipped from the factory (Holley) for some season. The mating flat surfaces of the float level screws and nuts looked suspect so I ordered a new set. In the mean time I lapped both sides of the nut flat. I think there may have been fuel leaking around the nylon gaskets since it may not have seated properly. We'll see....

"Merry Christmas to all and to all a good night"

Regards, Neil  Tucson, AZ

[robfrey]

Hi Neil,
Fuel leak solved yet?