Mystery engine sender/switch
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New User
Joined: Aug 2012
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From: Vancouver, BC
Mystery engine sender/switch
1952 V8 R-series. What the heck is this sender/switch left of the temp sender, above plug #6? Can't seem to find it on any parts or wiring diagram. Obviously the cover is molded/pressed to accommodate it. On the other side that spot is taken by the shut off valve for the cab heater. It's driving me nuts.
While I'm posting anyway another quick Q with regards to the outside door handle removal. I removed the screw on the side of the door and supposedly the handle should come right off. No dice
, am I missing something? Handle moves fairly freely, has some play, opens and closes no prob, it just would not come out.
Much appreciate any light shed!
While I'm posting anyway another quick Q with regards to the outside door handle removal. I removed the screw on the side of the door and supposedly the handle should come right off. No dice
, am I missing something? Handle moves fairly freely, has some play, opens and closes no prob, it just would not come out. Much appreciate any light shed!
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
8A-10884 .. Temperature Sending Unit / ID: Stamped 224 / All 1948/55 6V Trucks / All 1949/55 FoMoCo 6V Passenger Cars.
8A-10990 .. Engine Excessive Heat Indicator Bulb / ID: Stamped 217 / 1948/52 all trucks 239 flathead / 1953 F100/600 239 / 1949/53 239/256 Ford/Merc Passenger Cars.
Parts catalog pic * shows feed wire branching off wiring harness to 10990. A separate short feed wire then connects 10990 to 10884.
1948/56 Ford Truck Parts Catalog / Volume II Illustrations, Page * 338 / 10884 & 10990 listed in Volume I Text ~ Page 684.
This catalog is available on a CD from hipoparts.com
Edit: See post 4 for sources for these two parts.
8A-10990 .. Engine Excessive Heat Indicator Bulb / ID: Stamped 217 / 1948/52 all trucks 239 flathead / 1953 F100/600 239 / 1949/53 239/256 Ford/Merc Passenger Cars.
Parts catalog pic * shows feed wire branching off wiring harness to 10990. A separate short feed wire then connects 10990 to 10884.
1948/56 Ford Truck Parts Catalog / Volume II Illustrations, Page * 338 / 10884 & 10990 listed in Volume I Text ~ Page 684.
This catalog is available on a CD from hipoparts.com
Edit: See post 4 for sources for these two parts.
Fleet Owner
Joined: Jul 2004
Posts: 27,288
Likes: 1,053
From: NM
#6 cylinder is on the driver's side, correct? That head should only have one port for a temp sender. The passenger side head should have two ports, with the heater control valve in one of them.
No matter, that doesn't appear to be a stock sender. I suspect someone has tried to use one from a later model engine.
No matter, that doesn't appear to be a stock sender. I suspect someone has tried to use one from a later model engine.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
8A-10884 .. Temp Sending Unit =
WESLEY OBSOLETE PARTS in Liberty KY has 1 = 606-787-5293.
COLLECTORS AUTO SUPPLY in Oroville WA has 2 = 800-414-4462.
GREEN SALES CO. in Cincinnati OH has 6 = 513-731-3304 / 800-543-4959.
-----------------------------------------------------------------------
8A-10990 .. Excessive Heat Bulb =
COLLECTORS has 2.
WESLEY has 5.
GREEN SALES has 5.
Note: Collectors has a US 800 number, but is actually located in BC, just a bit north of the WA border. But this isn't a very reliable source, I only listed them because the OP is in BC
Usually you have to leave a message. They say "will call you back" after they check the "warehouse" (could be other unrelated sources, like a local autoparts store or Green Sales!).
But...usually they don't call back.
WESLEY OBSOLETE PARTS in Liberty KY has 1 = 606-787-5293.
COLLECTORS AUTO SUPPLY in Oroville WA has 2 = 800-414-4462.
GREEN SALES CO. in Cincinnati OH has 6 = 513-731-3304 / 800-543-4959.
-----------------------------------------------------------------------
8A-10990 .. Excessive Heat Bulb =
COLLECTORS has 2.
WESLEY has 5.
GREEN SALES has 5.
Note: Collectors has a US 800 number, but is actually located in BC, just a bit north of the WA border. But this isn't a very reliable source, I only listed them because the OP is in BC
Usually you have to leave a message. They say "will call you back" after they check the "warehouse" (could be other unrelated sources, like a local autoparts store or Green Sales!).
But...usually they don't call back.
Thread Starter
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New User
Joined: Aug 2012
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From: Vancouver, BC
All I can find is;
8A-10990 is the dual pole temp sending unit on the drivers side.
8A-10884 is the single pole temp sending unit on the pass. side.
Neither of which are the sending/switch unit above plug #6 left of the temp sending unit 8A-10990 .
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
I looked at the pic of the cylinder head before I typed post 2: The 10884 sending unit isn't the original, is their an ID number stamped on it?
Ross looked at the same pic, he owns one a these trucks, said it wasn't original either.
Post 2: What I typed is "as original" because...not only do I have the parts catalog that shows/lists these parts, but have owned 5 1951/53 Ford Passenger Cars with the exact same engine, exact same parts.
Why do you think I listed the Ford part numbers/sources for these two parts? Because the temp sender is not the original and you may want to replace the bulb.
(sigh) You can lead a mule to water, but you cannot make it drink.
Ross looked at the same pic, he owns one a these trucks, said it wasn't original either.
Post 2: What I typed is "as original" because...not only do I have the parts catalog that shows/lists these parts, but have owned 5 1951/53 Ford Passenger Cars with the exact same engine, exact same parts.
Why do you think I listed the Ford part numbers/sources for these two parts? Because the temp sender is not the original and you may want to replace the bulb.
(sigh) You can lead a mule to water, but you cannot make it drink.
Fleet Owner
Joined: Jul 2004
Posts: 27,288
Likes: 1,053
From: NM
Also read Post #3, that isn't a correct sender. Also that is NOT cylinder #6, it's #3, unless you have the heads on the wrong banks (which would be interesting to say the least).
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Thread Starter
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New User
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From: Vancouver, BC
Pls folks,
I might not be all that bright but I'm not born yesterday either, I'll post the pic again with text to explain things
You can clearly see the dual pole temp sender 8A-10990 on the drivers side(plug 5,6,7,8), which leaves the single pole temp sender 8A-10884 on the other (passenger) side of the engine, not shown in pic. So what is this mystery sender on the driver side above plug 6 IN FRONT (to the left in pic) of 8A-10990?
Like ALBUQ F-1 said in post 3 this side should have only one port for the temp sender, now parts diagrams however do show the second port on the drivers side cover but not what's supposed to be in there.
I hope this clears things up.
I might not be all that bright but I'm not born yesterday either, I'll post the pic again with text to explain things
You can clearly see the dual pole temp sender 8A-10990 on the drivers side(plug 5,6,7,8), which leaves the single pole temp sender 8A-10884 on the other (passenger) side of the engine, not shown in pic. So what is this mystery sender on the driver side above plug 6 IN FRONT (to the left in pic) of 8A-10990?
Like ALBUQ F-1 said in post 3 this side should have only one port for the temp sender, now parts diagrams however do show the second port on the drivers side cover but not what's supposed to be in there.
I hope this clears things up.
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Fleet Owner
Joined: Jul 2004
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From: NM
Sorry, but I have never seen a driver's side head with two ports! Can you pull that "???" sensor out and take a pic of what its inner end looks like? Can you take a pic of the entire head?
I wonder if that isn't a heating element, like a block heater? Since you are in BC, is this a Canadian truck? A lot of trucks up there have Canadian Army features, this may be one of them.
PS -- I posted this question on the Flathead forum to see iof anyone there knew what's up
I wonder if that isn't a heating element, like a block heater? Since you are in BC, is this a Canadian truck? A lot of trucks up there have Canadian Army features, this may be one of them.
PS -- I posted this question on the Flathead forum to see iof anyone there knew what's up
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Pls folks,
I might not be all that bright but I'm not born yesterday either, I'll post the pic again with text to explain things
You can clearly see the dual pole temp sender 8A-10990 on the drivers side(plug 5,6,7,8), which leaves the single pole temp sender 8A-10884 on the other (passenger) side of the engine, not shown in pic.
So what is this mystery sender on the driver side above plug 6 IN FRONT (to the left in pic) of 8A-10990?
A previous owners "fixum." Sender no more belongs there than an battleship does steaming along on (not under) Lions Gate Bridge!
I might not be all that bright but I'm not born yesterday either, I'll post the pic again with text to explain things
You can clearly see the dual pole temp sender 8A-10990 on the drivers side(plug 5,6,7,8), which leaves the single pole temp sender 8A-10884 on the other (passenger) side of the engine, not shown in pic.
So what is this mystery sender on the driver side above plug 6 IN FRONT (to the left in pic) of 8A-10990?
A previous owners "fixum." Sender no more belongs there than an battleship does steaming along on (not under) Lions Gate Bridge!
I'll betcha someone stuck that sender in there to block off the hole used for the heater water valve (if so equipped).
Heaters were optional at additional cost, so if not equipped, there would be no heater water valve, just a 3/8" -18 plug (358066-S8) in the head.
Does the truck have a heater? If the heater valve was leaking (as usual), PO removed it, had that sender lying around...stuck it in there. Mystery solved.
If the head was swapped from something else, the pipe plug coulda been missing. That sender looks like B7A-10884-B 3/8" -18 that was used from 1957 into the 1990's.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Hmmm...a package arrived yesterday. Since "She, who must be obeyed" shops from catalogs, most packages tossed over the gate by UPS, Fed-Ex, USPS are for her.Since "She" is in Miami attending a confab (I didn't tag along as I've been there before and it's as humid as Houston
), I didn't look at it, stuck it in her pile of mail.Well, I just did look at it, has my name on it...and yours.
Thank you, will open it ASAP (which could be an hour or so).
Thread Starter
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New User
Joined: Aug 2012
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From: Vancouver, BC
One head has the sending unit, one has the excessive heat bulb, an individual wire connects the two, harness feed wire connects to bulb.
I'll betcha someone stuck that sender in there to block off the hole used for the heater water valve (if so equipped).
Heaters were optional at additional cost, so if not equipped, there would be no heater water valve, just a 3/8" -18 plug (358066-S8) in the head.
Does the truck have a heater? If the heater valve was leaking (as usual), PO removed it, had that sender lying around...stuck it in there. Mystery solved.
If the head was swapped from something else, the pipe plug coulda been missing. That sender looks like B7A-10884-B 3/8" -18 that was used from 1957 into the 1990's.
I'll betcha someone stuck that sender in there to block off the hole used for the heater water valve (if so equipped).
Heaters were optional at additional cost, so if not equipped, there would be no heater water valve, just a 3/8" -18 plug (358066-S8) in the head.
Does the truck have a heater? If the heater valve was leaking (as usual), PO removed it, had that sender lying around...stuck it in there. Mystery solved.
If the head was swapped from something else, the pipe plug coulda been missing. That sender looks like B7A-10884-B 3/8" -18 that was used from 1957 into the 1990's.
Yeah, it does have a heater, the valve is on the passenger side though and still present, it looks to be the original cover as well, see pic below. The cover is on the driver's side and is obviously stamped/molded with two ports, one for the temp sender and one for this freakin' thing. It does look a whole lot like B7A-10884-B(see pic below) what it's doing on my truck I have no clue
must be a Canadian thing or something.Sorry, but I have never seen a driver's side head with two ports! Can you pull that "???" sensor out and take a pic of what its inner end looks like? Can you take a pic of the entire head?
I wonder if that isn't a heating element, like a block heater? Since you are in BC, is this a Canadian truck? A lot of trucks up there have Canadian Army features, this may be one of them.
PS -- I posted this question on the Flathead forum to see iof anyone there knew what's up
I wonder if that isn't a heating element, like a block heater? Since you are in BC, is this a Canadian truck? A lot of trucks up there have Canadian Army features, this may be one of them.
PS -- I posted this question on the Flathead forum to see iof anyone there knew what's up
Yeah, it's canadian. It does have a block heater on the passenger's side, it's screwed in one of the bolt holes. Doesn't seem there's anyway it should be connected to the mystery thingy though.
Thanks for forwarding this to the flathead forum!
Pics:
Thanks all for the patience and effort, you guys r
ck