The Ford Barn

Hoogah · 04-08-2018, 07:04 AM

Just picked up this Tilly and manifold at a swap meet and notice that the bolts holding the carby on have nuts. My Zenith doesn’t. Did all Tillotson carbs have nuts on the bolts or was this one done out of necessity? How many of you have gone down this path with either type of carb? I ask because one of the threads in my Zenith is weak and I’m going to have to do something about it soon.
(Sorry, the Zenith photo is sideways and I can’t fix it.)

Additional edit, 9th April ‘18: My Tillotson is actually a Marvel Schebler. Thanks for the correction, Duke36.

James Rogers · 04-08-2018, 07:32 AM

Probably out of necessity. The bolt holes probably stripped and this is cheaper than heli-coils.

johnbuckley · 04-08-2018, 07:36 AM

...if the threads are stripped I prefer to use nuts and bolts as helicoiling removes a substantial amount of the remaining metal

jhowes · 04-08-2018, 08:46 AM

The Tillotson and Marvels are made of pot metal and the threads strip if one overtightens them. I use helicoils but the nut and bolt method works just as well. I have never had a zenith that had lost it's threads. Jack

duke36 · 04-08-2018, 12:28 PM

That looks like a Marvel carb. in photo 1; ditto other posts.

160B · 04-08-2018, 03:06 PM

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Quote:

Originally Posted by Hoogah

J
(Sorry, the Zenith photo is sideways and I can’t fix it.)

mr fixed

abachman3 · 04-08-2018, 03:16 PM

You can 'weld' up the holes using those aluminum type filler rods, using just a propane torch and then drill and re-thread the holes.

Bill Pursel · 04-08-2018, 03:27 PM

I take it that the intake is for a RHD car?

Hoogah · 04-08-2018, 04:07 PM

Quote:

Originally Posted by Bill Pursel

I take it that the intake is for a RHD car?

Yes.

Synchro909 · 04-08-2018, 05:37 PM

I agree with those above who said that the thread were stripped so a nut was used. I have the odd one like that and have done LOTS of miles on them. No one has ever noticed but mine is not a car that will ever be judged and I know yours is the same.
If it works, leave it alone and drive on, I say.

Hoogah · 04-09-2018, 12:08 AM

Quote:

Originally Posted by duke36

That looks like a Marvel carb. in photo 1; ditto other posts.

Thanks for pointing this out, Duke. I’m new to both Tillotson & Marvel. I’ve corrected the info in Post #1.

04-08-2018, 07:32 AM	#2
James Rogers Senior Member Join Date: May 2010 Location: Asheville,NC Posts: 3,104	Re: Carby to manifold bolts Probably out of necessity. The bolt holes probably stripped and this is cheaper than heli-coils. __________________ http://www.model-a-ford-4bangers.com/

04-08-2018, 07:36 AM	#3
johnbuckley Senior Member Join Date: Jul 2010 Location: United Kingdom Posts: 1,441	Re: Carby to manifold bolts ...if the threads are stripped I prefer to use nuts and bolts as helicoiling removes a substantial amount of the remaining metal

04-08-2018, 08:46 AM	#4
jhowes Senior Member Join Date: Jul 2010 Location: upstate NY near Mass border Posts: 789	Re: Carby to manifold bolts The Tillotson and Marvels are made of pot metal and the threads strip if one overtightens them. I use helicoils but the nut and bolt method works just as well. I have never had a zenith that had lost it's threads. Jack

04-08-2018, 12:28 PM	#5
duke36 Senior Member Join Date: Jun 2015 Posts: 1,414	Re: Carby to manifold bolts That looks like a Marvel carb. in photo 1; ditto other posts.

04-08-2018, 03:16 PM	#7
abachman3 Senior Member Join Date: Jun 2013 Location: Western Springs, IL Posts: 323	Re: Carby to manifold bolts You can 'weld' up the holes using those aluminum type filler rods, using just a propane torch and then drill and re-thread the holes.

04-08-2018, 03:27 PM	#8
Bill Pursel Member Join Date: Nov 2017 Location: Terre Haute, Indiana Posts: 90	Re: Carby to manifold bolts I take it that the intake is for a RHD car?

04-08-2018, 05:37 PM	#10
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Re: Carby to manifold bolts I agree with those above who said that the thread were stripped so a nut was used. I have the odd one like that and have done LOTS of miles on them. No one has ever noticed but mine is not a car that will ever be judged and I know yours is the same. If it works, leave it alone and drive on, I say. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.