The Ford Barn

Kentf1003 · 08-31-2013, 08:12 AM

I have several flathead heat sending units and would like to identify them for the years they originated. Any Barners know of a list that shows the matching numbers? Thanks.

Mac VP · 08-31-2013, 12:05 PM

The single terminal type is the 8A-10884 and the double terminal is the 8A-10990. If you plan to sell them, I suggest testing them first to make sure they work. We had a handful of NOS senders that were no good. The brand new senders work ok, so if they don't test good, pitch 'em.

oldford2 · 08-31-2013, 01:27 PM

What is the procedure for testing them? Thanks
John

19Fordy · 08-31-2013, 01:58 PM

This may help. Info. is from 1949-51 Vol.2 of Mercury Overhaul Manual. I bet these interchange with FORD to some degree.

19Fordy · 08-31-2013, 02:22 PM

Here's how you test them. FORD is the same. Click on pic. to enlarge.

19Fordy · 08-31-2013, 02:24 PM

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oldford2 · 08-31-2013, 03:13 PM

19fordy,
Thanks for your efforts to post this test. I will print it out.
John

Kentf1003 · 08-31-2013, 04:54 PM

Not interested in selling them. Simply want to match up a pair for a 1946 59AB engine that is in going in my 40PU.

Prior to using, is their a preliminary resistance or continuity check that would spot a bad sender?

Thanks.

Bluebell · 08-31-2013, 08:33 PM

Kent the double terminal one would be same as an on off switch. 0 ohms when cold, and open cirrcuit when hot.
I can't tell you about the single termial one.
Did I read somewhere that there are two different single terminal ones?

BTW, 19Fordy's posted pictures cover the test procedure.
Thanks 19Fordy!

08-31-2013, 12:05 PM	#2
Mac VP Senior Member Join Date: May 2010 Location: Cincinnati, OH Posts: 1,361	Re: flathead heat sending units The single terminal type is the 8A-10884 and the double terminal is the 8A-10990. If you plan to sell them, I suggest testing them first to make sure they work. We had a handful of NOS senders that were no good. The brand new senders work ok, so if they don't test good, pitch 'em. __________________ VANPELT SALES LLC Cincinnati, Ohio Office: 513-724-9486 www.vanpeltsales.com www.classictransmission.com

08-31-2013, 01:27 PM	#3
oldford2 Senior Member Join Date: May 2010 Location: pittsfield, MA Posts: 2,086	Re: flathead heat sending units What is the procedure for testing them? Thanks John

08-31-2013, 01:58 PM	#4
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,950	Re: flathead heat sending units This may help. Info. is from 1949-51 Vol.2 of Mercury Overhaul Manual. I bet these interchange with FORD to some degree. Last edited by 19Fordy; 08-31-2013 at 02:28 PM.

08-31-2013, 03:13 PM	#7
oldford2 Senior Member Join Date: May 2010 Location: pittsfield, MA Posts: 2,086	Re: flathead heat sending units 19fordy, Thanks for your efforts to post this test. I will print it out. John

08-31-2013, 04:54 PM	#8
Kentf1003 Senior Member Join Date: May 2010 Posts: 138	Re: flathead heat sending units Not interested in selling them. Simply want to match up a pair for a 1946 59AB engine that is in going in my 40PU. Prior to using, is their a preliminary resistance or continuity check that would spot a bad sender? Thanks.

08-31-2013, 08:33 PM	#9
Bluebell Senior Member Join Date: Nov 2012 Location: Tauranga, New Zealand Posts: 726	Re: flathead heat sending units Kent the double terminal one would be same as an on off switch. 0 ohms when cold, and open cirrcuit when hot. I can't tell you about the single termial one. Did I read somewhere that there are two different single terminal ones? BTW, 19Fordy's posted pictures cover the test procedure. Thanks 19Fordy! Last edited by Bluebell; 08-31-2013 at 08:41 PM.