J13 Rebuildin

[Craig Hughes]

Hey wiser than I on top of the Datsun pile, I'm taking apart a J13 and my friend who runs our local high school autoshop wants to remove these pressed-in flush finished caps that are at both ends of the motor and where the oil pump and temp sender go into. He feels to completely clean the motor carcass this is a must but doesn't know if he could find replacements so I'm asking imput on how to remove them but if that is the right thing to do. If you say remove than who has these journal caps avaible. I leave this topic for your immense depth of knowledge and skill to ponder and solve,thanks for the help.

[matwood]

Not much pondering about it. They are called freeze plugs and there are more than just a couple. You can get them in brass or steel from places like rockauto.com and stuff.

 

Don't think there's anything special about them...

 

To remove them, i usually just knock one side back into the block, grab the end that rotates out with some vise grips, and pull it on out...

 

 

 

One of the J-series people should chime in here sometime.....

[datsun65]

Not much pondering about it. They are called freeze plugs and there are more than just a couple.

 

You can pick up new freeze plugs for the J13/J15 from:

 

http://www.motorpowerinc.com/pricing/j15.html

 

The cost is only $8.00

[Craig Hughes]

Thanks crew for rapid response. I think I'm not explaining them correctly, the're not the 1-1/2" or larger freeze plugs they are about a 1/2" and the're 2 on front and back of the block and completely flush not just the rim and at the of the oil shaft-journal-hollow shaft that runs front to back and the oil pump shaft runs thru it as well as the oil temp. sender. they appear to be made of steel and in solid. The freeze plugs knocked out o.k. but my instructor friend says they need to come out cuz he's sure they are filled with junk needing removal as part of the rebuild on the J13. Did I clear that up? Keep the vurbalage coming I'm waiting on every word.

[banzai510(hainz)]

there was a Forklift site that had rebuilt kits.

Im sure "Datsunaholic" knows PM him I have it soemwhereI think nissanforklifts were J motors. J13 and J15s

[datsun65]

there was a Forklift site that had rebuilt kits.

Im sure "Datsunaholic" knows PM him I have it soemwhereI think nissanforklifts were J motors. J13 and J15s

 

The Company is MotorPower Inc.

 

Nice guys that know the J Series engine. Give them a call, they should be able to assist.

 

http://www.motorpowe...ricing/j15.html

[datsunaholic]

If they are what I'm thinking of, those "Plugs" are plugs to fill where they machined the shaft bores and such. The only way to remove them is to drill them out. Bad idea. You can get the engine plenty clean without removing them.

[datzenmike]

In competition engines they are removed, the holes tapped and pipe plugs screwed in.

[Craig Hughes]

Hey it warms the heart to know you'all really follow up on these question. My shop teach friend thinks similar to what they do on chevy's and such is to remove the and tap and insert these allen head threaded plugs. He's confident theres plenty of metal and the size is not much larger than the present plugs. I'm kinda sceptical but he says no big and the benifits to cleaning out those inner galleries says makes it worth it.Either way I'll still need to rebuild with new stuff top to bottom. I just can't believe how good of condition this little motor is in! Stuff has come apart easy with normal elbow grease with no breaks or rusted into place parts, just the way you would want a 53 year old motor to be! When I'm done I should have some left over manifolds and stuff if someone is hurting. Keep the coments coming all is soaked up, thanks.

[datzenmike]

If you tap and plug them your great-grand kids can easily remove them to clean the oil holes out next time. :D

[Craig Hughes]

Thanks Datzenmike I hope it lasts that long. Once this motor is done I'll do it again to the existing one in the truck, so should have it down as a technique by then.I guess your responding with info and interest is why your "Kingrat"!

[zenndog]

How about some pics of the process? Just for kicks.