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Changed timing belt, now engine sputters, stalls and smokes: blown valves/pistons? 200 1987

posted by  Kindofhandy on  Sat Jan 20 16:06 CST 2018
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I changed out the timing belt and front seals. At first the timing was way off so it backfired and didn't start. The distributor turned out to be about 180 degrees off at TDC, so I pulled it and reinstalled it to point to the wire for plug 1 at TDC. Bingo.

Now it starts, but it has a loud, rattly sputter, dies quickly, and the smoke of something burning comes from the hole in the prehistoric exhaust pipe right under the engine.

Partway through the process I came across the advice to not rotate the crankshaft by itself during the timing belt procedure because it risks running the pistons and valves afoul of one another. Too late. So, non-interference or not, does this sound like I may have blown valves and/or pistons?

If so, is there anything else I should do to diagnose? Thanks.






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