Quote:
Originally Posted by humfrz
WOW! What a read.
Two things I have taken away from this recent conversation and references, is that, number one, I would never attempt to take this engine apart and put it back together. The second thing is that I would never trust this engine that anyone else has taken apart and put back together.
When and if the internal parts of the engine in my FR-S fail, someone else is going to have them a car, screwed up engine and all.
humfrz
|
This thing is a serious pain in the ass to rebuild due to all the packing. Not so much putting the packing on but cleaning it off. I literally spent more time cleaning packing than I did removing the engine and disassembling. I've removed packing on other engines but this Threebond 1217H seems more difficult to remove than most. The other pain in the ass is the valve lash. The manual says to seal up the cam assemblies and then check the lash. If the lash isn't right then you have to pull it back apart, clean all the packing off, get the right shims, put it all back together with new packing (again) and then recheck the lash and cross your fingers that it's right. When I indexed all my pivots, rockers and shims I somehow labeled them 180deg off. When I reinstalled I basically had everything from the intake side on the exhaust side. So the lash was all off but consistently off so I quickly figured out I simply had to rotate everything 180. So I had to strip all this packing back off (real fun) but when I threw it all back on a did it without packing, checked the lash, it was good. Pulled it back apart and then packed it. checked the lash.. still good. The packing will change the lash though so in the end you really do have to pack it before checking it. A dry fit only tells you if you're in the ballpark. I used the dry fit method on the other bank just to be sure I didn't get all those flipped too (they were not).
I have about 310 miles on mine and so far so good. After reading that thread Tcoat linked to I'm not convinced I'm out of the clear yet. I've gotten under the car to look all around to make sure I'm not leaking oil anywhere and everything is spotless so far. It will be nice not having that leak near the bottom right of the timing cover
for a while.