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Re: Silicone vacuum hose Posted by 900 Aero [Email] ![]() ![]() In Reply to: Silicone vacuum hose, Inga ![]() |
Hello Inga, we stock German cloth covered Black vacuum line for Saab's in 3.5mm and 5mm. I accurately measured both I.D.'s and they're right on 3.5 and 5mm. When I measure the hose nipples on a Saab throttle body the smaller one is 5mm and the larger one that goes to the charcoal canister on the earlier cars is 6mm so Saab is using a 1.5mm interference fit on their 3.5mm hoses and 1mm interference on their 5mm hose. I would assume that the windshield washer lines etc. are also 3.5mm I.D. We don't have colored silicone hose on our web site as yet but our supplier info is as follows; 3.2mm (most GM windshield wiper arm replacement hose), 3.5mm (this is the most popular! Use on all small fittings on and around the intake manifold and most fuel pressure regulators!), 4mm (most windshield washer hose), 6mm (some intake manifold fittings, "probably nothing on a Saab"), 8mm (some radiator over flow fittings), 10mm ("I didn't see anything that would apply to Saab!"). Anyway it's nice to know that the interference fit is built into the hose nipple and not the hose so we know the basic size for Saab is 3.5mm and 5mm for the charcoal canister hose where it applies. We'll get a 3.2mm sample to see if it will work for a tighter fit where the 3.5mm is normally used plus some 4mm (as they don't supply 5mm) to see if it will work in place of the Saab 5mm hose and post accordingly. Take care, Dave
posted by 63.196.199...
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