Replacing water pump-351M-1979 Help
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Replacing water pump-351M-1979 Help
Been a while since I've worked on one of these. 79 F250 supercab 4x4 automatic used to have a/c, none now, will again.
Anywho , waterpump appeared to be weeping from the weep hole. Yanked it off tonight, bearings seem tight. impeller looks fine. Is there supposed to be a gasket between the backing plate and block? Wondering if the backing plate gasket was leaking, because waterpump feels/sounds/acts fine, now that it's sitting on the tailgate.And the top of the backing plate is loose next to the block (no bolts).
Chilton's and haynes are the usual paperweights they are: almost
remove water pump
installation is the reverse of removal
Any ideas?
Anywho , waterpump appeared to be weeping from the weep hole. Yanked it off tonight, bearings seem tight. impeller looks fine. Is there supposed to be a gasket between the backing plate and block? Wondering if the backing plate gasket was leaking, because waterpump feels/sounds/acts fine, now that it's sitting on the tailgate.And the top of the backing plate is loose next to the block (no bolts).
Chilton's and haynes are the usual paperweights they are: almost
remove water pump
installation is the reverse of removal
Any ideas?
Logistics Pro
Joined: May 2003
Posts: 4,238
Likes: 21
From: Northern Illinois
If water was coming out of the weep hole that means the seal is shot. Replace it with a new pump or otherwise it will leak again. Yes there is supposed to be a gasket between the plate and block. The guy that worked on it last might of just used silicone.
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