Can't get water pump to seal

[Chopper3200]

Hello! Does anyone make a 4.6 engine block water pump bore shim I could JB-Weld in to get a smooth sealing surface? Mine is so pitted from rust and corrosion It won't seal up anymore for more then a couple months at a time, even with a new oring and sealant. Thanks.

 

[Generalee0527]

Assuming you are repairing this in the vehicle? Probably need to use a cylinder hone to open it up a little then install a speediSleeve with proper adhesive. if out of the car then a machinist could do a better job.

SKF

www.skf.com

 

[MadMikeyL]

Do not JB Weld your water pump in. Just clean up the sealing surface with a red cookie on a die grinder, or some 80 grit sandpaper, and then use a new o-ring and coat it with a thin coating of grease. That should seal, but on the off chance your block really is that pitted and it won’t seal, just follow the same procedure with some RTV instead of grease, and let it cure overnight before filling it up with coolant.