Is the F20C an "interference" engine?
12-18-2002, 05:46 AM
#1
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Is the F20C an "interference" engine?
if iam not mistaken, many Honda engines are interference engines, by that i mean if the timing chain breaks the pistons could potentially hit the valves. Anybody know if the F20C is an interference engine?
12-18-2002, 06:08 AM
#2
The F20C is the only Honda engine I've had with a timing chain. My previous 7 Hondas had timing belts. Timing belts are much more likely to break. If a belt or chain breaks, there will be serious damage, but I really haven't heard of a chain breaking. I think the chain will stretch and become noisy long before it breaks.
12-18-2002, 06:24 AM
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The chain appears to be very strong and is lubricated constantly. I imagine the chain would outlast the engine. If the chain did break however it would probably cause hell the break loose.
The pistons are domed and the valves are relatively large, therefore that leads to be believe that yes, it would be considered an "interference engine".
Chris
The pistons are domed and the valves are relatively large, therefore that leads to be believe that yes, it would be considered an "interference engine".
Chris
12-18-2002, 09:27 AM
#4
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Yes, the engine is very much an interference engine. Domed pistons and large valves don't necessarily make for an interference engine, but ours with the high CR certainly do. 
12-18-2002, 11:24 AM
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Originally posted by Elistan
Wouldn't valve float from high rpms due to a miss-shift be more likely to cause valve/piston contact than a broken timing chain?
Wouldn't valve float from high rpms due to a miss-shift be more likely to cause valve/piston contact than a broken timing chain?
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12-18-2002, 12:41 PM
#8
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Originally posted by SECRET AP1
Same thing in either case. If the timing chain broke, the valves would not be in sync with the piston movement.
Same thing in either case. If the timing chain broke, the valves would not be in sync with the piston movement.
12-19-2002, 07:34 PM
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Ah yes, the wonderful mis-shift. I knew this guy that had a Camaro (he obviously isn't that smart...anyway) he downshifted instead of upshifting. Small block chevy's aren't supposed to do 12k rpm, so his engine sustained, shall we say....lots and lots of damage **giggles**
moral of the story, don't use crappy shifters, and it's better to take an extra few hundredths of a second to put it in the right gear than explode your engine!
moral of the story, don't use crappy shifters, and it's better to take an extra few hundredths of a second to put it in the right gear than explode your engine!