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Old 01-21-2012, 06:52 AM   #1 (permalink)
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valvetrain drag?

can't do much with my sammy until i get it towed home from where i left it (100miles away) it just suddenly died on the highway with only a farting noise from the exhaust as it quit. thinking about it now, i'm wondering if i snapped the timing belt. it seemed during my efforts to restart it that the starter cranked the engine over faster and with much less resistance....

so my wondering is, does a valve train have enough drag to make the engine crank a little faster, with it disconnected?

and yes the crank was turning fine, i saw the fan move while i tried the switch.

just curious.
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Old 01-21-2012, 08:06 AM   #2 (permalink)
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Yes, it will crank faster with a broken t-belt. Not so much from the drag of the valve train, it's due to the loss of compression.
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Old 01-22-2012, 01:00 AM   #3 (permalink)
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Quote:
Originally Posted by Whitetrash303 View Post
Yes, it will crank faster with a broken t-belt. Not so much from the drag of the valve train, it's due to the loss of compression.
thanks, i think thats the part i'm buying... after getting towed again.

edit: looks like 1.3L sammi engines are3 non-interference, so i should be good to go without fear of engine damage
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