1990 S3.5 lower radiator hose - Alfa Romeo Bulletin Board & Forums
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post #1 of 36 (permalink) Old 07-04-2019, 07:32 PM Thread Starter
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1990 S3.5 lower radiator hose

I have a 1990 spider which looks like an S3 but is a Motronic car with electric fans.
I have tried 3 different lower radiator hoses from 3 different vendors. (Vicks, Trail and Centerline) They all sell the same hose which doesn't match my hose nor does it fit on the water pump. Too tight.
They all call for the same hose for 1990 - 1994 which is part number 605-62912

An ex-Alfa technician whose opinion I respect very much looked up the hose in his documentation and found part number 605-55449 for 1990.

I cannot find this part number anywhere..

Anyone with a 1990 been through this?
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post #2 of 36 (permalink) Old 07-04-2019, 08:28 PM
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Classicalfa shows Bottom hose 1989-93 (WA016) with electric fans.
Cheers, Jon

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post #3 of 36 (permalink) Old 07-04-2019, 08:32 PM Thread Starter
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Thanks but unfortunately, they just responded and said that they only have the hose for non-AC cars.
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post #4 of 36 (permalink) Old 07-05-2019, 12:29 PM Thread Starter
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Hard to believe that no one on this list has a North American spec 1990 spider with A/C and has not come across this problem.
Here is what i have learned.
From 1969 through 1990, the US spec cars apparently used a water pump with the lower hose connection at the 9 o'clock position while the ROW cars used a water pump with the lower hose connection at the 8 o'clock position.
The reason was that the US spec cars had to have the hose clear the Spica injection pump and on Bosch cars, clear the A/C compressor which went where the Spica pump was.
In 1990, Alfa changed the radiator to the one used through 1994 but still used the old pump. In 1991, they changed to the pump that has the connection at the 8 o'clock position when they moved the A/C compressor and added power steering.
Soooo, the 1990 is a unique beast with a special lower radiator hose.

All that being said, I still cannot find a replacement hose or get a response from someone who has found a solution to this dilemma.

If I ever come up with a solution, I will surely share it.
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post #5 of 36 (permalink) Old 07-05-2019, 04:04 PM
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Patience young grasshopper! There are only a few of us with '90s on here and at least some of us need to consult our notes for info like this.

I think the 1990 has a perfect blend of the most modern injection without the power steering, air bag and other S4 additions. But you do run into things like this here and there, plus I'm not convinced that all '90s are the same - in fact I'm convinced of the exact opposite.

Unfortunately my notes aren't as helpful as I had hoped. They are a bit sketchy and somehow I can't find my receipts for this job. I save all of my receipts so that's a bit of a mystery. If I had that I'd be able to tell you exactly. Or if I'd been smart and put the part number in my notes.

But I did run across this exact issue once upon a time. It took a couple of pumps and a couple of hoses to hit the right combo. According my notes, the proper pump turned out to be an '89 and the hose I have listed as "1990 with OUT A/C". Yes my car has (well, had) A/C but the proper hose turned out to be listed like this. No idea why. I'm pretty sure I got it from Vick.

SOOO.....I wish they had a picture to be sure but I think this is probably the proper hose:

Radiator Hose Lower - Spider 1990 (non Ac) (SKU 11-4851) [11-4851] - $44.74 : Vick Autosports, The Premier Fiat and Alfa Parts Source

Though this picture on the Vick site bears an uncanny resemblance to my hose and looks quite different from Centerline's picture of the same hose:

Radiator Hose Lower - Spider 1991 on (with Ac) (SKU 11-4827) [11-4827] - $38.00 : Vick Autosports, The Premier Fiat and Alfa Parts Source

Chris

1990 Spider Veloce

Last edited by GV27; 07-05-2019 at 04:12 PM.
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post #6 of 36 (permalink) Old 07-05-2019, 04:18 PM
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BTW, my parts manual shows a different p/n than what your buddy came up with. PM with your email and I'd be happy to share (r.i.p. Papajam).

Chris

1990 Spider Veloce
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post #7 of 36 (permalink) Old 07-05-2019, 05:07 PM Thread Starter
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GV27/Chris
You have been PMed.
BTW, I pretty much agree with you assessment of a 1990 model which is why i am bringing this thing back to life after sitting for 12 years.
Wish I had the dual pods like my 1985 and a deep dish wood wheel but other than that, I like it just the way it is. S3 looks with S4 technology and accessibility under the hood.
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post #8 of 36 (permalink) Old 07-07-2019, 05:59 AM
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It has been some time but I believe I used a Gates 22150. It required some trimming and I needed to use some nylon ties, with something to keep the ties from rubbing through the hose. I needed to use the ties to keep the hose away from one of the pulleys.
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post #9 of 36 (permalink) Old 07-14-2019, 08:44 AM
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Check with Di Fatta Brothers | Alfa Romeo Parts | Fiat Parts
I have had good luck in the past on their backroom of un-obtainable parts.
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post #10 of 36 (permalink) Old 07-14-2019, 01:50 PM
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Pantera,
did you get a PN for the 1990 one year only hose?
can you share it?

yes the PN listed in post 1 for the 1990 (605-55449) is not correct, imo.

btw you'd best search alfa p/ns without that hyphen thing!

Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.
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post #11 of 36 (permalink) Old 07-15-2019, 01:17 PM Thread Starter
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That part number came from an Alfa Romeo microfische that came from a dealer here in the USA. I do not believe it was correct outside of the USA.
Most cars in Europe first did not have the Spica pump and later id not have the air conditioner compressor where the Spica pump used to be.
US spec cars used a water pump that had the connector coming straight out to the right side of the car at the 9 o'clock position if you were facing it.
ROW cars had a pump that had the connector coming out at the 8 o'clock position which interferes with the earlier Spica pump and the later A/C compressor.
See attached photo.

I got a reply from DiFatta today saying that the hose as not been available for 13 years.
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post #12 of 36 (permalink) Old 07-16-2019, 12:51 AM
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Greg,
Thank you for clearing that up.
so the PN 60555449 is most likely correct for the S3.5.

Hoses in our spiders were marked S.A.I.A.G (Società Industria Articoli Gomma), that was the original hose manufacturer, 'till Pirelli swallowed them in '93.
(today's bit of useless information)

Dom

Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.
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post #13 of 36 (permalink) Old 07-16-2019, 04:18 AM
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Can you post a photo of the correct hose and i'd of the ends. I have a stash of NOS hoses I cannot identify.
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post #14 of 36 (permalink) Old 07-16-2019, 05:22 AM Thread Starter
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Dom, so you can see that my hose is the original from 1990. Good eyes. Jim G noticed that also.

divotandtralee
There is a photo of the correct hose installed on the car above. I can try to get the dimensions of the ends but basically the water pump end is whatever Alfa water pumps all had and the radiator end is the standard size for all S4 spiders.
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post #15 of 36 (permalink) Old 07-16-2019, 06:07 AM
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If you can't find the Alfa part, I'm sure there is a radiator hose that can be made to work. At the very worst, you could have a steel-braided hose made.
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