924Board.org

[engineer.white]

I have contacted http://www.classicsiliconehoses.com/our-products/, with regards manufacture of coolant hoses for the 931. I am trying to gauge the interest in having them manufacture a full set of hoses specifically for the 931, and possibly the 924. They already do a set for the 924S.
Using the PET i have come up with the following list of hoses for the 931.
#'s are from the IPB page 44 of PET
#1 046 121 051
#6 046 121 053 (PET shows 931 106 263)
#30 931 106 159 00
#31 931 106 159 00
#9 046 121 061
#5 931 106 267 01
heater hose #s are from IPB on page 337 of PET
# 33 477 819 723A
#34 477 819 725A NLA from Porsche

Of these hoses 1, 5, 6, 9 and the heater hoses 33, and 34 would be hard to replace once they are NLA...... I may focus my efforts on these 6 depending on level in interest. Any comments are welcome.
Thanks
David
_________________
1981 924 turbo/931
1982 924 turbo/931
1986 911 turbo/930

[fiat22turbo]

I've not heard many great things about silicone coolant hoses (mostly related to difficulty with keeping them from leaking or popping loose)
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[engineer.white]

I have used silicone heater hose before and never had a problem with them popping off. I did however use the special lined or extended band worm gear clamps for silicone hose. Silicone requires higher clamping force than rubber, but will extrude through the slots in a standard worm gear hose clamp, so you have to use the proper clamps.
David
_________________
1981 924 turbo/931
1982 924 turbo/931
1986 911 turbo/930