Wedge Adhesive Help

[DNK]

Got this cool little plug for my crank sensor hole on my block
View attachment 33954
Aluminum on Aluminum.
Will the "Right Stuff Adhesive work for this?

 

[Got_All_4]

Better the wrong stuff!!! Sorry. Is there any pressure on the plug and how hot will it get. (I think the Right Stuff is up to 500 deg.) Then look on the can for it's limits. Your worst enemy is heat. It will eventually brake down the bonds of any RTV silicone.

 

[DNK]

Plug goes here
View attachment 33971
I will use it to in lou (sic)) of this to seal the bell housing...so no pressure to speak of

 

[dklawson]

Better the wrong stuff!!! Sorry. Is there any pressure on the plug and how hot will it get. (I think the Right Stuff is up to 500 deg.) Then look on the can for it's limits. Your worst enemy is heat. It will eventually brake down the bonds of any RTV silicone.

Where will this plug mount? With oil and water cooling the engine should not exceed 250 oF except perhaps at very localized hot spots.

"The Right Stuff" is rated to about 450 oF according to the Permatex web site. It is elastomeric like RTV which is a good thing to consider when putting dissimilar metals (with different expansion rates) together.
https://www.devcon.com/prodfiles/pdfs/fam_tds_370.pdf

The RTVs I am familiar with are rated for more than 500 degrees. Silicone seals bonded/spliced with RTV have been common on various pieces of industrial heating equipment and ovens for decades. I have not seen any RTV fail due to high temperatures that did not exceed 500 oF.
https://www.amazon.com/Permatex-81160-High-Temp-Silicone-Gasket/dp/B0002UEN1A
https://www.amazon.com/Permatex-821...ilicone/dp/B0002UEN1U/ref=pd_bxgy_auto_text_y

Either The Right Stuff or RTV should work well as long as both surfaces are degreased thoroughly before bonding.

 

[GBRandy]

Is this a Rover engine that you are modding?

 

[DNK]

Randy- 4.0
Doug- Both brand new clean surfaces