The Ford Barn

walkrit1934 · 03-03-2017, 04:22 PM

Would like to know what this manifold is for. It fits a Model A but has other characteristics. The number AAF 9425 is on one end of it and the ports have been honed (looks like from the factory). I have other pics I can email if necessary.

Bob C · 03-03-2017, 06:06 PM

According to my Canadian Ford parts book it's from a Right Hand Drive AA.

Bob

Dick Steinkamp · 03-03-2017, 06:30 PM

I have a similar manifold, but the boss (hump) over the rear runner is not drilled and tapped. My understanding is that this boss was for a pivot for the spark advance/retard.

Does anyone know why some of these manifolds did not have the boss drilled and tapped?

Synchro909 · 03-03-2017, 07:14 PM

Originally, these RHD manifolds had a post set in the casting when it was poured. I guess all sorts of things happen in 85+ years. A bell crank mounted on the post to operate the ignition advance.
By the way, these bell cranks and the rods that go to and from them are not available!

There was another thread about this not long ago.

KMeredith87 · 03-03-2017, 11:25 PM

I have one sitting in the garage...it's for a RHD and from my understanding the post is pressed in. Unfortunately the post, bell crank and linkage are very hard to come by. (I still need them!)

updraught · 03-04-2017, 03:14 AM

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juke joint johnny · 03-04-2017, 03:52 AM

Some of them have smaller internal passages , They are for the small bore European engine.
That engine was available in LHD European countries like France,and Holland they didn't have the post
They only have the post if it was sold in a RHD country like England

03-03-2017, 06:06 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,749	Re: Confusing Manifold According to my Canadian Ford parts book it's from a Right Hand Drive AA. Bob

03-03-2017, 06:30 PM	#3
Dick Steinkamp Senior Member Join Date: Apr 2016 Location: Bellingham, WA Posts: 1,163	Re: Confusing Manifold I have a similar manifold, but the boss (hump) over the rear runner is not drilled and tapped. My understanding is that this boss was for a pivot for the spark advance/retard. Does anyone know why some of these manifolds did not have the boss drilled and tapped? __________________ All steel from pedal to wheel

03-03-2017, 07:14 PM	#4
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Re: Confusing Manifold Originally, these RHD manifolds had a post set in the casting when it was poured. I guess all sorts of things happen in 85+ years. A bell crank mounted on the post to operate the ignition advance. By the way, these bell cranks and the rods that go to and from them are not available! There was another thread about this not long ago. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

03-03-2017, 11:25 PM	#5
KMeredith87 Senior Member Join Date: Mar 2013 Location: San Antonio Posts: 177	Re: Confusing Manifold I have one sitting in the garage...it's for a RHD and from my understanding the post is pressed in. Unfortunately the post, bell crank and linkage are very hard to come by. (I still need them!)

03-04-2017, 03:14 AM	#6
updraught Senior Member Join Date: Feb 2015 Location: Australia Posts: 1,969	Re: Confusing Manifold Sponsored Links (Register now to hide all advertisements) You just missed one http://www.ebay.com.au/itm/model-a-f...QAAOSwjDZYee-6

03-04-2017, 03:52 AM	#7
juke joint johnny Senior Member Join Date: Feb 2012 Location: London England Posts: 908	Re: Confusing Manifold Some of them have smaller internal passages , They are for the small bore European engine. That engine was available in LHD European countries like France,and Holland they didn't have the post They only have the post if it was sold in a RHD country like England