Oil & Water temp senders - Alfa Romeo Bulletin Board & Forums

 
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post #1 of 11 (permalink) Old 03-13-2017, 11:24 AM Thread Starter
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Oil & Water temp senders

I'm shopping for some Oil & Water temp senders, but have seen more that one type regarding the fittings; spade type, et al.

Which is correct for a '64 Giulia Spider?

Thanks,

Ray

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'64/66 Giulia Spider finally back in the garage and painted
'75 Olandase Blu Alfetta Sedan 2.0 & '88 Red Milano Verde; both long gone and dearly missed
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post #2 of 11 (permalink) Old 03-13-2017, 01:09 PM
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You're the Oklahoma SNO Alfa Chapter Director, for pete's sake! What do you care about correctness?

Kidding aside, my '64 Giulia Spider has bullet connectors on the oil and water temp sensors. Female on the sensor, male on the wire.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L
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post #3 of 11 (permalink) Old 03-17-2017, 12:38 PM
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I would have expected spade fittings on a 64, since it has Bosch electrics, right? Are the other fittings on the car bullet type, Jay? Taillights and whatnot?
I have a couple senders lying around, mixture of spade, bullet, screw type. Far as I've read, oil and water senders are the same item.
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post #4 of 11 (permalink) Old 03-17-2017, 01:26 PM
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My '65 Spider Veloce is all spade type with a "U" type on the oil temperature sending unit wire.


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post #5 of 11 (permalink) Old 03-18-2017, 02:10 AM
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senders

I've just bought two senders from Classic Alfa for my '62 Sprint which have spade connections (they are the same for water/oil). My original oil sender was a bullet type so I've changed the wire connector to spade. Strangely my original water sender was spade and looks like it has never been tampered with.
The main problem is that the new senders have the cone seat sealing which is OK for the oil sender but not for the water version because the manifold has a tapped through hole with no seat. They also have 17 mm hex whereas the original water version had a 21 mm hex so that a copper washer could be used. I've managed to fit the water one and get it to seal by making a v.thin aluminium washer to wind it along the thread + some sealant. Probably dont need the washer, just sealant.
Gauges still don't work though although they will give full scale deflection if the wires are shorted!
Never ending problems.
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post #6 of 11 (permalink) Old 03-18-2017, 06:27 AM
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Quote:
Originally Posted by Andrew View Post
I would have expected spade fittings on a 64, since it has Bosch electrics, right? Are the other fittings on the car bullet type, Jay? Taillights and whatnot?
Andrew:

Oops, my Giulia is probably a '63, not a '64. VIN is 375165. It's an early 1600 normale with drum brakes. All the electricals are Bosch, and most of the connectors are bullet including the taillights.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L
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post #7 of 11 (permalink) Old 03-18-2017, 07:51 AM Thread Starter
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I have no idea about other electrical connectors as my wiring loom is out for refurbishing and all lights/connectors are boxed away.

Danjamds, did you happen to take any photos of the modifications you had to make?

I have an early 105 screw-in thermo intake; would that affect the need to use a different washer as you did?

Thanks,

Ray
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Oklahoma SNO Alfa Chapter Director
'64/66 Giulia Spider finally back in the garage and painted
'75 Olandase Blu Alfetta Sedan 2.0 & '88 Red Milano Verde; both long gone and dearly missed

Last edited by Raimondo; 03-18-2017 at 07:55 AM.
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post #8 of 11 (permalink) Old 03-18-2017, 08:08 AM
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The water SENDING unit with tapered seat can be modified easily with a lathe cut. With these on stock manifolds, Alfa used a copper sealing washer. I imagine you could easily cut a taper into the manifold, but that doesn't strike me as quite right. I seal them all in place with a bit of Permetex Ultra Grey anyway, and none ever leak.


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post #9 of 11 (permalink) Old 03-18-2017, 08:15 AM
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Sener variations

Maybe the attached will help explain the variations:
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File Type: pdf Alfa 750-101 Gauges Senders for AlfaBB.pdf (479.3 KB, 44 views)
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post #10 of 11 (permalink) Old 03-18-2017, 08:26 AM
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I have found that VDO offers a wide array of senders. Most can be had via Summit Racing. However, the full VDO catalog can be a little hard to locate, as most of the listings you find are for more modern cars. Try digging up via the German VDO website. You can eventually find super-detailed descriptions for thread, sealing method, temp/resistance span, etc.

Once you've figured it out, the part can be ordered. Probably have to give up the bullet, though.

Don P
Carson City, NV

Past Alfas...
59 102 Touring (first Alfa $500 running)
65 Sprint GT (2nd Alfa, $500 daily driver)
102 Sprint (never did anything with it, but wish I had)
74 Berlina (first new car - now certainly rusted into oblivion)
61 Giulietta Spider G-Prod Race Car (where is it now?)
84 Spider Veloce (rarely drove it, so sold it)
86 Quadrifoglio (Dull car - no more 115s for me)
1971 Montreal "The Full Monty". Fair winds and following seas

Current Alfas
59 102 Touring Roadster - restoration complete, enough Alfa for any rational man. Or irrational, for that matter
And past...
Two 1946 Stampe SV4C (c/n 294 "Rocinante" - wife's favorite airplane. RIP), and c/n 235 "La Bon Temps Femme" (gone to a new home, but never forgotten)
Zlin 50LA (+9 -6 gees, titanium spar, 1200 lbs, 260HP rumored to now be in Brazil)
1946 Luscombe 8A
Starduster Too (recently spotted at the Nevada City, CA airport - over 20 years and an entire continent separating it from our stewardship in Binghamton, NY)
1955 Cessna 170B (wife taught me to fly tailwheel in this)

And present...
64 Mooney M20E ("Rambo". My faithful steed for over 30 years) Nearly 50 years old, and just returned from a trip to Argentina in him
Newest in the fleet
1967 Piper Super Cub on Wipline amphibious floats (a true "all terrain vehicle")
2010 Triumph Thunderbird


You can snap roll an Alfa only one time...
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post #11 of 11 (permalink) Old 03-18-2017, 09:26 AM
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senders

Pics of my original(?) senders below. The spade version is the water sender. The threads are the same, M16.
My car is all Bosch except for wipers.
Didn't take a photo of my ally washer but I just cut it from 0.5 mm sheet. On reflection I think any good sealant will be fine without the washer.
I've attached a pic of the sender sold by Classic Alfa.
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