Quote:
Originally Posted by maslin
I’ve been glueing engines together since 2006, Mercedes has been doing it a whole lot longer than that. I’ve never blown one up, never wiped a cam, nothing like that. Never even seen it happen to someone else.
Plenty of bulletins out there for over application, warnings in work instructions to clean thoroughly and not drop pieces down holes. You try to be as careful as possible, but I’m sure I’ve left plenty of strips of the stuff in there.
If it drops to the pan it will either get stuck in the strainer, not a big deal until there’s a lot of it there. Or blown though the pump to the filter, also not a big deal until there’s a lot in there.
The concept isn’t the problem. Engines that haven’t been worked on aren’t blowing up going down the road, and they’re all glued together the same way before and after the recall. Or at least they should be.
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Sorry wasn't clear. It isn't the basic concept it is the application of it to that particular engine. The methodology appears to be different from others and that is what is messing with them.
And yes engines that were not worked on HAVE been blowing up for the very same reason going right back to 2013. It is well document on here way before the recall was ever even announced. In many of the factory fresh engines that blew they found sealant blocking passages so even the robots applying it couldn't do it right for a period of time. I am not saying that "gluing engines" together is bad overall just that this particular engine seems to be abnormally susceptible to even the slightest error. This is a result of some poor engineering not just careless or "dumb" techs.