Re: 1941 Packard 110 - Water Pump Replacement

Posted by Owen_Dyneto On 2016/7/17 7:53:31

If the coolant leak is coming from the "weep hole" in the pump body, surely the seal is failing.


1. 1 gasket goes between the pump body and the pump rear cover plate, the other between the pump cover plate and the engine block.

2. I've always used either Permatex or gasket shellac.

3. Yes, and check the lengths to make sure you get the bolts back into the same holes when reinstalling. I shellac the threads as the bolts go into the water jacket.

4. Yes, where they are used will be indicated by a slight recess in the casting of the pump body.

5. Snug, no specs that I'm aware of though you could see what specs are recommended for similar pumps on the 50s models and be guided by that.

Unless it's been changed in recent years, chances are good you won't be able to get a wrench on the lower center pump bolts because the engine has sagged on a worn-out rubber front engine mount. Procedure for this has been addressed here multiple times and should be easy to find but in a nutshell what I do is raise the engine a bit with a jack and block of wood under the oil pan and then remove the "yoke" which supports the engine mount. Purchase 2 new front engine mount rubbers before you begin the job.