Holley NH bowl gasket

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Model T Ford Forum: Forum 2014: Holley NH bowl gasket
Top of pagePrevious messageNext messageBottom of page Link to this message  By Bud Holzschuh - Panama City, FL on Tuesday, July 15, 2014 - 09:49 pm:

On a Holley NH, does the lower bowl gasket (the smaller one) go inside the bowl or outside ?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jack Daron - Brownsburg IN on Tuesday, July 15, 2014 - 09:54 pm:

out side.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Thompson on Wednesday, July 16, 2014 - 07:44 am:

Jim Thode said - inside
Jack said outside???


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Wednesday, July 16, 2014 - 07:47 am:

I vote outside.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Donnie Brown on Wednesday, July 16, 2014 - 09:04 am:

I vote outside also......


Top of pagePrevious messageNext messageBottom of page Link to this message  By Kenny Edmondson, Indianapolis on Wednesday, July 16, 2014 - 09:07 am:

Outside. Unless you want it to leak. :-)


Top of pagePrevious messageNext messageBottom of page Link to this message  By ROBERT BERGSTADT on Wednesday, July 16, 2014 - 09:08 am:

Large one inside, small outside if it's our gaskets red inside, grey outside, Bob
Also on sale at Bob's Antique Auto Parts


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bud Holzschuh - Panama City, FL on Wednesday, July 16, 2014 - 09:18 am:

An earlier post regarding a Kingston L4 said the gasket goes inside. I have always put mine outside (on my own L4 and on a L2) without leak problems.

I am new to the NH so I thought I would ask.

Maybe its different depending on the model carburetor ?

BTW only one lower bowl gasket in my rebuild kit.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Wednesday, July 16, 2014 - 11:07 am:

It goes on the outside, but you can put one on the inside too, and it will still work.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick on Wednesday, July 16, 2014 - 11:48 am:

Outside. No need for one on the inside


Top of pagePrevious messageNext messageBottom of page Link to this message  By ROBERT BERGSTADT on Wednesday, July 16, 2014 - 12:21 pm:

The reason for the inside gasket is when rebuilding them sometimes there is a small gap in them, that's why we supply it, also my father when he was alive and I rebuild them we also put them in as does Russ Potter, Bob


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Wednesday, July 16, 2014 - 12:30 pm:

Yes, the inside one is just a spacer. Fuel behind it can leak down the threads and out if there's no outside gasket.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Scott Conger on Wednesday, July 16, 2014 - 12:42 pm:

Bud

the difference is in where the gasket goes is dependent on how it is made. Kingston has a threaded stub which goes through the bowl. It has a flat on it which seals firmly against the inner face of the bowl. If you put the gasket on the outside, the fuel runs down the threads and out the carb...you have no effective seal...all you've done is keep the nut from scratching the bowl paint.
With the NH, you have essentially a threaded plug from the outside to the inside. With an NH, you want the seal on the outside, between the plug/drain and the bowl.
Depending on the abuse the bowl has seen in it's life, you may or may not want to use the extra washer as Bob Bergstadt mentioned above. If you reshape the seal area of the bowl to original shape, you will have a space as Bob mentioned. All too often, amature rebuilders fail to do this, and the mis-shaped bowl bottom is caved in enough that the extra gasket/spacer cannot be fit.
Anyway, that's the difference.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Zahorik on Wednesday, July 16, 2014 - 01:13 pm:

Sometimes the leaking problem is not just a gasket. Many times the bowl has been dimpled in, by over torquing the bowl nut.

I always use a brass hammer to flatten out the bottom of the bowl prior to re installing the bowl and/or nut or drain bolt.
Mike


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Wednesday, July 16, 2014 - 01:20 pm:

You can also put the bowl in your press and use a deep socket to squash the bottom back to flat. Some of us hammer-control challenged individuals don't always hit where we mean to hit.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Tomaso - Milton,WA on Wednesday, July 16, 2014 - 03:57 pm:

That's how flatten them also, Steve.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Thursday, July 17, 2014 - 10:42 am:

The bowl pictured above appears to be an L-4.


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