tell me why i shouldn't use rubber vac lines
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Joined: Nov 2003
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From: Maryland, 21794
A couple of 2nd gen guys have used silicone in oil catch-can and fuel vapor areas. There was no sign of wear in either of these areas after some months.
I wouldn't reccomend using them in these applications...just saying, it works fine.
I've used silicone lines on all my engines, and they have never shown a single sign of wear...
I wouldn't reccomend using them in these applications...just saying, it works fine.
I've used silicone lines on all my engines, and they have never shown a single sign of wear...
Originally Posted by ptrhahn
Dale's right, rubber is fine IF you never touch it, but my question to the original poster is, why you WOULDN'T just use silicon? Then there's definately no problem.
A LOT of people had running problems with the original rubber. That's where the ubiquitous "silicon tie wrap job" came from in the first place. Mines been done since '98 or so. I was the 2nd thing I did (after a catback).
If I had it to do over right now, i'd go with 100% viton (nobody's heard of it in 98). Of all the things you'll pour money into with these cars, HOSE PRICE is the thing you're going to get hung up on after you've taken the manifold off and sweated over the rats nest for a day or paid $500 in labor to have it done? Sorry, but F-that. That's a job you want to do ONCE. Pay the extra couple bucks for the good stuff while you're in there.
A LOT of people had running problems with the original rubber. That's where the ubiquitous "silicon tie wrap job" came from in the first place. Mines been done since '98 or so. I was the 2nd thing I did (after a catback).
If I had it to do over right now, i'd go with 100% viton (nobody's heard of it in 98). Of all the things you'll pour money into with these cars, HOSE PRICE is the thing you're going to get hung up on after you've taken the manifold off and sweated over the rats nest for a day or paid $500 in labor to have it done? Sorry, but F-that. That's a job you want to do ONCE. Pay the extra couple bucks for the good stuff while you're in there.
btw, the reason i'm doing this now is becuase i have the engine out for a rebuild after 125k original miles. if i do it again i'm going with viton, but even after 125k (with the precat still in the engine bay) the hoses are still in fair conditon for the most part. call me wierd, but i'm not convinced silicone = no problems. i've seen it cause problems. i know everybody and their mom runs it... but it's attributes just don't make sense.
i've already bought some SAE spec 260 deg. EPDM tubing along with new fuel inj. lines so i'm just going to use that.
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Nosferatu
2nd Generation Specific (1986-1992)
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Sep 5, 2015 02:13 PM
