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Author Topic: Rear Coupe Lights - Difference between Altissimo/SIEM  (Read 2744 times)
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RickyJ
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« on: August 24, 2010, 09:54:26 AM »

Can anyone tell me if the Altissimo and SIEM light clusters from a Coupe are the same, is it just the lens markings that are different?

The mounting lugs and rubber gaskets on my VX Coupe lights are shot and I've been in contact with another forum member about some Altissimo units. I'm pretty sure the VX lights I have are SIEM, the question is, are all the parts interchangeable (Frame/Lenses/Circuit Board/Gaskets) - I'd like to keep the SIEM Lenses for originality.
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MattNoVAT
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« Reply #1 on: August 24, 2010, 07:52:54 PM »

I dont think you'll have an issue Ricky, if the mounting points change that means that the chassis had to have changed (relocated mounting points for rear clusters) I cant see Lancia doing that just for a change in manufacturer of rear lights/lenses.  Lancia were a bit bonkers at times but not that crazy.  Its probably just the lenses themselves that are made by two different companies depending on early/late production.

I know that Siem is part of Magneti Marelli, who also own Weber, A-L, Carello, Solex, Veglia Borletti and others (all names that are synonymous with italian motors) - my guess is that Altissimo either got bought up (by MM?) or simply went to the wall because MM was so big and so "in bed" with Fiat, Alfa and Ferarri.
Anyone know the Altissimo history?
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1981 2000 Coupe S2/FL
1976 1600 Coupe S1

Understeer is when you hit the wall with the front of the car. Oversteer is when you hit the wall with the back of the car. Horsepower is how fast you hit the wall and torque is how far you send the wall across the field once youve hit it.
rossocorsa
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« Reply #2 on: August 24, 2010, 11:16:26 PM »

in general individual parts are not exchangeable between manufacturers but whole units will fit regardless of what was there before, so for instance you can't fit Carello headlights to a car with Siems without changing the whole backing plate but if you have a whole unit it will fit fine. Throughout the life of the Beta range it seems that Lancia hedged their bets by using two suppliers (maybe due to frequent strikes in the 70s???) the only thing that seems certain is if you have Carrello on the offside it'll be Carello on the nearside but it could just as soon have Siem at the other end of the car or maybe Altissimo   
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RickyJ
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« Reply #3 on: August 25, 2010, 02:56:10 PM »

Thanks chaps.

I'm going to give the Altissimo ones a go - I'd like to keep as much of the SIEM units as possible for the sake of originality but failing that I'll paint the chrome surrounds on them black and stick the complete units in. I'll have a play around with swapping bits over and report back if any bits are directly interchangeable, once I get them - You never know when somebody else may need to know the same thing..
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Lancia Beta 2000
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« Reply #4 on: September 12, 2010, 01:37:38 AM »

Altissimo and Siem rear lights of beta are differents; the "notches" of plastics are different;
if you wnt to use siem lens with altissimo light body, you have to do some little notches in the plastic, ie with a dremel
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