Alfa Romeo Montreal - Air Intake Tubes - Alfa Romeo Bulletin Board & Forums
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post #1 of 26 (permalink) Old 10-05-2019, 10:54 AM Thread Starter
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Alfa Romeo Montreal - Air Intake Tubes

Hello!
Following a comment I made on another Thread here, there has been a fair amount of interest in the Air Intake Tubes for the Montreal. Anyone else interested, let me know. My details are below:

Karl Robertson
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post #2 of 26 (permalink) Old 10-05-2019, 02:15 PM
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I am. Will send contact info.


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1972 Montreal - done!
1982 GTV6 - making it a track car!
1991 164B - sold 8/2013
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post #3 of 26 (permalink) Old 10-06-2019, 10:27 AM Thread Starter
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Anyone else interested in a set of Air Intake Tubes? Let me know.

Karl Robertson
[email protected]
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post #4 of 26 (permalink) Old 10-07-2019, 04:48 AM
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Hi Karl, what are they going to be made from?

1966 GTA replica, 1967 Duetto, 1987 Quadrifoglio
1972, 1973, 1974 Montreal
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post #5 of 26 (permalink) Old 10-07-2019, 01:08 PM Thread Starter
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They are just like the original Hoses. They are made of a type of impregnated cloth with spiral wire reinforcement. The color is Black.
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post #6 of 26 (permalink) Old 10-07-2019, 01:20 PM
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Sorry Karl, that would not be original. I had a set of NOS intake hoses, the were a cloth type material, tan in color on the inside with a spongey black rubbery foam on the outside. Absolutely no spiral wire visible or under the foam. If in the photo is the intake hoses then they are not correct. Peter.

1966 GTA replica, 1967 Duetto, 1987 Quadrifoglio
1972, 1973, 1974 Montreal
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post #7 of 26 (permalink) Old 10-07-2019, 01:39 PM
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Quote:
Originally Posted by classicalfas View Post
...I had a set of NOS intake hoses, the were a cloth type material, tan in color on the inside with a spongy black rubbery foam on the outside. Absolutely no spiral wire visible or under the foam. ....
Sounds like the the original ones would not have lasted very long if the construction is as you note. In this case....we might need to settle for other alternatives...such as the wire reinforced ones. Would the original version even be available still?


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1971 1750 GTV 105.48 (sold), 1972 1300GTJunior (sold)
1969 1750 GTV 105.5 , 1972 Montreal
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post #8 of 26 (permalink) Old 10-07-2019, 03:38 PM
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I still have my original one's, not in great shape, but original maybe someone wants to 3D Print them?
No high temperatures 180 degrees?, must have a flexible material?
Don't know much about 3D Printing.
You can see that one is longer than the other. They are as original as my car is. I told yous! Luckily I never installed them on the car so you can all see them.
I'll be very upset if an Alfisti wants to borrow them and not return them.
Cool you can see when the engine backfired once in her 47 years of existence and burn't the bottom left, looks melted?
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1972 Montreal (The Pumpkin)
1975 Alfetta Sedan
1975 Alfetta Coupe Race Car
1982 Spider
1984 GTV-6
1984 GTV-6 Verde (GiGi)
1987 Milano (Da NEW Winta Beata)
1987 Milano Verde(Da kREDden Mobile)

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post #9 of 26 (permalink) Old 10-08-2019, 05:07 PM Thread Starter
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Well, the debate goes on...!
I have owned my car since 1985 (Australian delivered). The hoses fitted to the car when I bought it was the same as those you see on my car today. It is also the same material as the Air Intake Hoses to the cabin that run along the space under the Fenders (normally called the Catwalk) from the Front of the cars to the inside Air Vents. Would seem logical to me that Alfa Romeo would use the same materials.
The point is, today, this is what is available. For anyone who wants some Hoses, let me know. Others, please investigate alternatives at your leisure. Thank you.
Karl Robertson
By the way, in the Concours Handbook, these Hoses would be considered "disposables", like radiator hoses, tires, fan belts, brake pads, spark plugs, etc. and will not be judged against you for correctness, if you are not keen to take my quick investigations at face value!
Again, I have owned my car for almost 35 years. If anyone's ownership goes back longer than that, please speak up. I am happy to be corrected, but not on here say.
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post #10 of 26 (permalink) Old 10-09-2019, 06:18 AM Thread Starter
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... just here to finish the loop on this discussion. As most of us are aware, "Montreal" The Essential Companion by Bruce Taylor is probably one of the best reference model specific books available for the Alfa Romeo Montreal. It is so good in fact, I use it as a Workshop Manual! So, I refer to the following pages with pictures:
[B]Page 36 - Top RH Corner
Page 84 - Lower RH Corner
Page 87 - And I quote " The relatively straight ram air intake ducts leading from the nose of the car to the air cleaner box contribute to maximising the dynamic efficiency of the induction of the Montreal engine. The original air inlet hoses were made of a steel wire reinforced rubber - coated fabric which becomes brittle with age. Hence they are often missing, and the air is drawn from within the engine compartment instead.
The hoses may be replaced by modern synthetic flexible hose of inside diameter about 51mm (2in), which is readily obtainable from specialist factors. A multi-ply hose with its reinforcing wire on the outside should be chosen, so that the internal wall of the tube is fairly smooth. Ford truck pre-heater ducting is suitable, and has a similar aspect to the original hoses." End of quote
Page 101 LH - Center
Page 102 RH - Lower Corner
Page 143 Center - Left hand side
Finally the Alfa Montreal Parts Catalogue TAV #26 which clearly shows that Part No. 105.64.08.571.00 has some sort of spiral wire in it.
I rest my case folks, you can make up your own minds.
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post #11 of 26 (permalink) Old 10-09-2019, 07:02 AM
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Not so fast Karl, not to be the thorn but I have to push back. First of all I'm guessing you didn't read that I had 2 New Old Stock air hoses, that's not heresay as you wrote. If you have this book "The Alfa Romeo Montreal by Patrick Dasse" it is a photo book of the Montreal being built and assembled and that has mostly FACTORY PHOTOS. In this book you will clearly see a photo of the engine compartment and the questioned air hoses, they look nothing like what your offering. They look exactly what I had described in my previous post and and what Alfasrule posted of his well worn hoses. Now I'm not saying your hoses that are on your car did not come with your car, your car is an anomaly, remember I have seen it and you pointed out many differences that I thought were incorrect but because in was a CKD car, they were correct. This might be another item that was sourced in Australia, like others on your car. I really don't care what type of hose your car or any other car has but please don't tell me that they are original because that's just not true. Peter.

1966 GTA replica, 1967 Duetto, 1987 Quadrifoglio
1972, 1973, 1974 Montreal
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post #12 of 26 (permalink) Old 10-09-2019, 02:01 PM
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Is it possible that Alfa used varying materials during the years of production? Mine is a December 1974 RHD Australian delivered car that I've owned since 1978. It's unlikely the first owner ever changed the ducting in the 3 years he owned it, and I know I've never changes them. The ones on my car are simple plastic ribbed construction - nothing like anything described above in this thread.

All I know is that I want to replace them with new so I've ordered a set from Karl. Everything he's supplied me to date is top class and I've no reason to think it will be different this time. At the end of the day, all I want is something that works, looks appropriate and will last.
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post #13 of 26 (permalink) Old 10-09-2019, 06:51 PM
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I can plunk them in and they fit like gloves. Have to take the air cleaner off too install them, don't want to risk breaking them. Sure they must of also shrunk Left to Right as well. They are the 1972 original intakes.
PIA! I will next year.

AlfasRule!

1972 Montreal (The Pumpkin)
1975 Alfetta Sedan
1975 Alfetta Coupe Race Car
1982 Spider
1984 GTV-6
1984 GTV-6 Verde (GiGi)
1987 Milano (Da NEW Winta Beata)
1987 Milano Verde(Da kREDden Mobile)
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post #14 of 26 (permalink) Old 10-10-2019, 08:43 AM Thread Starter
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Alfa Romeo Montreal - Air Intake Hoses

Ref #10
As most of us know, the book by Bruce Taylor - MONTREAL The Essential Companion is a great reference and source of information. It is so good that I have used it on numerous occasions as a Workshop Manual. So please look at the pictures here, they are from that book:

Pages: 36, 84, text on 87 (sorry for the upside down image), 101, and 143.

What started out as a desire to help fellow Montreal Owners seems to have become some sort of personal questioning of my credibility. No need for that. As I have said at the beginning, and will say it again, if any of you need help or information I have, or parts I make, let me know. For those who don't, that is fine by me...
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post #15 of 26 (permalink) Old 10-10-2019, 08:48 AM Thread Starter
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Alfa Romeo Montreal - Air Intake Hoses

Here is the image from Page 143.
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