Author Topic: 340 cam plug installation (Read 2236 times)

miketyler · « **on:** July 09, 2005 - 02:23:11 PM »

Am getting the 340 spiffed up and ready to put back in. The cam plug in the rear did show some signs of leakage. I bought a full set of plugs to replace all. The engine had the reverse flange style installed that goes in with the flange facing forward. The kit comes with that type but also has the round "flangeless" dish type. I assume is for your preference as I know of no other 1 7/8" holes in the engine. Are their different block designs that require either one? If not, which type is preferred or seals better? Also, what sealer (if any) do you use on the inside flange of freeze plugs and/or oil plugs.

All three of the rear plugs look to have had JB weld smoothed on them apparently as a secondary external seal or perhaps to keep them from coming out. Is that a common practice? Really need to get these right since they are not accessible when the engine is installed

Please post your comments and experiences here� �

Chryco Psycho · « **Reply #1 on:** July 10, 2005 - 09:19:37 PM »

I use a small amount of silicone around the edge of the plug , either plug can be used in any block , the flat style rimless plug will work , once it is installed with the concave side inward hit it with a hammer to expand it so it holds in the rear of the block

OUTLAW · « **Reply #2 on:** July 10, 2005 - 11:11:37 PM »

Like CP said either one will work . I prefer the cup type myself, easier to get set and sealed. I have always used aviation forma gasket (the black gooey stuff) and give it a liberal coat to the block and the cup then use a socket and an extention to drive it in the block then wipe off any sealer that oozes out

Author Topic: 340 cam plug installation (Read 2236 times)

miketyler

340 cam plug installation

Chryco Psycho

Re: 340 cam plug installation

OUTLAW

Re: 340 cam plug installation