My brake servo vacuum hose does not look good at all and now I need something to replace it with.
It is part 15 here: https://opel.7zap.co...ar/e01/j/0/5-0/
The original part number 93172328 have inner diameter of 10.5mm. The hose in my car is marked "Vacuum airbrake hose 10.5mm ID" so I have the original hose still in the car.
The newer part 93188759/93188760 that replaces 93172328 have inner diameter of 10mm. From what I have understand a lot of cars have had the hose replaced under warrant and the new hose have red stripes (=93188759/93188760 i guess).
I saw a picture of a hose that clams to be 93188760, it had red stripes and was market "Semperit TU25 Öl/Luft Oil/Air PN 25 bar...".
Can someone with a red stripe hose in there car confirm the marking on the hose?
The spec for this hose: https://www.semperfl...rit_TU25_en.pdf
I have found NOS of 93188760 in UK, but I live i Sweden. If I can find same thing here per meter instead of buying GM part number from UK I would prefer that.
Another alternative is to buy any vacuum hose with inner diameter of 10mm with outside diameter of 18mm or less.
The Semperit hose is a general purpose hose and not a dedicated vacuum hose from what I understand, so getting a true vacuum hose might be better.
There are many on Ebay claiming that they are sell vacuum hose, but far from all looks to be hoses for vacuum. A hose that can stand the pressure from compressed does not necessary stand vacuum without collapsing.
After some research I found two SAE standards:
SAE J 1402 - Automotive Air Brake Hose (compressed air) https://www.sae.org/...t/j1402_201710/
SAE J 1403 - Vacuum Brake Hose https://www.sae.org/...t/j1403_201409/
The hose should thus have SAE J 1403 specification and not only SAE J 1402.
The best I have found so far is Cardon 1405: https://www2.codan.com/node/28343
It has SAE J 1403 spec and temperature range up to 125°C (Semperit 80°C). The problem is the inner diameter of 9.5mm (do not know the tolerance) and It looks like many vacuum hoses have inner diameter 3/8" = 9.5mm.
Can someone that have done the hose replacement comment on the fitting. Will it be possible to fit a hose with 9.5mm inner diameter?
Does anyone have any other suggestions for brake servo vacuum hose?
When it comes to replacing the hose i have found these threads:
Is it a doable jobb? Anyone having comments to how the job shall be done?