Water Pump

Hi guys . Need some advice , if you can . My 63 CJ5 has a 56 M38A1 F-head engine in it. My question is , does anyone know what single belt application water pump would fit in place of the double pulley one in it now ? Mainly concerned with belt alignment , and pulley diameter . Thanks

 

I would think you probably could swap pulleys, with a puller and a press. The pump itself ought to cross with CJ5.

Slightly unclear what the issue is. If the military double pulley is working now, why not replace that in kind?

 

Main problem is availability . All auto parts stores list for CJ 5 , but have no listing at all for M38a 1 . And I mean for all parts , not just a water pump . Online jeep specialty sites do list , but charge an arm and a leg , and , then there is waiting for shipping . I've been an auto partsman for 38 years , and just hate to pay retail for parts .

 

Try ebay?

Willys Jeep M38 M38A1 double pulley water pump NEW US MADE
American made, and only slightly higher than a Gates CJ5 part.

I'm usually amazed how fast shipping is, and way easier for me than going all over town.

 

Thanks , I'll check that out .

 

That will depend on the replacing pump

 

Just a follow-up question . The reason I want to replace pump is , after removing it to do other service work ( it did not leak before ) , I reinstalled sealing it good , and with a new gasket . The leak seems to be coming from around the mounting bolt closest to generator , right side of engine . Question is , does bolt go into water jacket , and I should have put sealer on bolt threads , or are they blind holes ? Thanks again all !

 

Thanks Glenn , I'll give it a try after work tonight . Jeep has been sitting for about 3 weeks .
I'm suffering from withdrawel .