Core plugs

[jason110]

Cracking on with the engine rebuild and we are refitting core plugs today. Thought I had a complete set of plugs but it looks like the core plug hole at the rear of the engine is slightly smaller in diameter than those on the manifold side of the engine. The parts books isn’t much help, I can’t see a part number listed there. 
 

thoughts? I “could” get it in with some welly but don’t want to come a cropper or is there a core plug specific to that hole? 
 

TIA 
 

 

[simonb]

For the back ones, my LR parts book says 587628 1.75" dia - the big one, and 525497 15/16" dia.

Side ones in block 518272 or 597586 - doesn't specify the difference.

 

Edited August 13, 2020 by simonb

[jason110]

23 minutes ago, simonb said:

For the back ones, my LR parts book says 587628 1.75" dia - the big one, and 525497 15/16" dia.

Side ones in block 518272 or 597586 - doesn't specify the difference.

 

Thank you.
 

Makes sense because the 1” core plugs are a bit too big. 
 

If you can, a screen shot of the parts book page would be great. 

[David Sparkes]

3 hours ago, jason110 said:

If you can, a screen shot of the parts book page would be great. 

From a '72 parts listing showing diameters and part numbers.

Regards

[jason110]

1 hour ago, David Sparkes said:

From a '72 parts listing showing diameters and part numbers.

Regards

Thank you