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#3334524 - 04/05/14 09:33 PM Has anyone had bypass pipe stuck to water outlet?
Gokhan Offline

Registered: 12/29/10
Posts: 2307
Loc: Los Angeles, California
I had a leak at my water-outlet gasket and started the job of replacing the gasket today. In fact, there was hardly any gasket left.

I wanted to remove the water outlet, which requires removing it from the water-bypass pipe and replacing the O-ring for it. There is one small bolt holding the water-bypass pipe's flange against the water outlet and I removed it. For some reason, the flange of the water-bypass pipe appears almost welded to the water outlet. No matter how hard I pull or twist it, I can't separate them. Below is the parts diagram, with the outlet, gasket, O-ring, and the flange end of the bypass pipe shown at the top left:

Has anyone had this problem? I wanted to remove the water outlet from the water-bypass pipe because it's hard to scrape the old gasket material otherwise, as there is little space between the water outlet and cylinder head.
1985 Toyota Corolla LE, 4A-LC engine, ~ 264,000 M
Mobil 1 (M1) 0W-40 SN synthetic
Toyota 90915-YZZF2 filter, 90430-12031 drain gasket

#3334586 - 04/05/14 10:29 PM Re: Has anyone had bypass pipe stuck to water outlet? [Re: Gokhan]
Chris142 Offline

Registered: 06/05/03
Posts: 14496
Loc: apple valley, ca
Probly lots of corrosion holding them together
02 Wrangler Chevron 10w30
87 F250 napa 15w40
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Can am maveric edge 5w40