I'm going to be replacing all 8 of my injector cups. On Rock Auto they have a .2 ounce tube of Permatex 64000 sleeve retainer compound for $5. Local stores don't have this (or Loctite 620) in stock. Is .2 ounce enough to do all 8 cups or should I get 2 of them?

 

I used the bottle from riffraff. Loctite 620 0.34 oz. I feel like the bottle is pretty empty after doing 8 cups.

 

Wow, that one from Riffraff is expensive. I guess I'll get 2 of the little ones. BTW, I found on Rock you can get a 1.22 ounce bottle of the Permatex stuff, #64040, for $18. But I don't think I need that much.

 

Permatex is not what you want. It isn’t the quality needed for doing cups, loctite is superior.

 

Got supporting evidence? The Permatex appears to have much higher temperature resistance.
https://www.permatex.com/wp-content/.../tds/64000.pdf
https://www.henkel-adhesives.com/us/...ctite_620.html

 

Mainly personal experience as I have had to replace cups installed with Permatex in the past. Temp is the same, 200ºC for Loctite and 400ºF for Permatex. Gap fill is better with Loctite. Once main indicator is that you will only find Permatex at places like Oreillys and Napa for general auto use as it is cheap and generic use. Loctite is found in professional applications like hydraulic stores, aviation, machining as well as what the Ford Manual calls for on this application.

 

Agree with you on this, You never ever want to do it again, SO buy once Cry once!

 

It may be expensive, but Riff Raff is not going to sell you junk! you never want to do this again!

 

Less expensive than doing it twice! We only sell Loctite 620 to our customers installing cups. We also only recommend Clay's install/removal tool. We talk to many customers who buy the cheap junk on eBay and have to do the job again.

 

I've used Clay's excellent tool set, and loctite 620, and ended up doing the job 7 times (once all 8 cups, then chasing down leakers). The last two of those times were with the help of friends Woodnthings and Tugly.

The two big mistakes I made: Not cleaning the holes adequately so the loctite could bond well, and not pressure testing properly when I discovered the 1st attempt was not successful. I was not able to identify all of the leakers at once. It helps to have no antifreeze in the block to check your work. Easier to see air bubbles around a leaking cup sprayed with silicone, than to see weeping antifreeze on the cup edge.

 

Omg That sound like a nightmare!