Quote:
Originally Posted by ctrlz
Yeah, a lot of reviews there saying the taper is too steep and it's pushing the seal out of the groove.
Hopefully success with a better tool.
Another idea I had was heating the tool to maybe 200-250 degrees to get the "O" shape to expand slightly. May buy you a small fraction of room. Don't want to go much hotter than operating temp for the engine. Then cooling may help it compress.
Any way you do it, going slow seems to be key.
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Yeah I thought about doing heat there for a minute and decided against it. It's Teflon material. That stuff doesn't really change consistency just because it's hot, but once it gets to its threshold, then it just breaks down and melts. That's likely why they prefer to use that material for the internal seals vs rubber. Rubber will change shape on you, expand, and likely push off the seat. It's also not rigid enough to hold back the extreme pressure of the combustion chamber.
As far as going slow, I think methodical is the key. Once the seal is smushed, leaving it for a minute is just good form, but I don't think necessary. I think the key is, once the seal is pressed, don't jack with seal anymore. If you play with it and make it spin, you're technically unseating it. The Teflon is firm but malleable, for reasons like I talked about above, it has to withstand heat and extreme pressure, but hold a specific shape and thickness. None of the guys in the other videos were taking more than what seemed to be an hour or so to do a set of injectors and then installing them.