Help! Need to find TDC with no distributor or piston stop.
02-17-2007, 06:43 PM
#1
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Help! Need to find TDC with no distributor or piston stop.
The roll pin on my distributor gear has broken while I was turning over the motor. I have fixed the dizzy and now I need to put it back in. Just using the TDC marks on the crank wont do because I may be at the wrong stroke. I dont think that any place near by has a piston stop.
Anyone have any tips? When looking at the head, is the valve on the left the intake valve, or the valve on the right of the piston?
Anyone have any tips? When looking at the head, is the valve on the left the intake valve, or the valve on the right of the piston?
02-17-2007, 06:53 PM
#3
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RE: Help! Need to find TDC with no distributor or piston stop.
TDC is at the top of the exhaust stroke and the begining of the intake stroke correct? Hoping I can get it close enough by looking at the valves.
02-17-2007, 06:56 PM
#4
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RE: Help! Need to find TDC with no distributor or piston stop.
no.. tdc is TOP DEAD CENTER... its the point at which the piston has reached the furthest part of its travel towards the head... before it begins to travel to BDC or bottom dead center, which is where the piston is furtherst AWAY from the head
02-17-2007, 07:13 PM
#7
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RE: Help! Need to find TDC with no distributor or piston stop.
ORIGINAL: Evil_F
2 strokes where the piston is at the top. Compression stroke and exhaust stroke.
2 strokes where the piston is at the top. Compression stroke and exhaust stroke.
compression they would both be closed............
im not too sure on this i know the exhaust stroke, 1 vavle has to be open to let the exhuast fumes out
02-17-2007, 07:19 PM
#8
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RE: Help! Need to find TDC with no distributor or piston stop.
ORIGINAL: Evil_F
So I guess that the top of the exhaust stroke is TDC.? Just trying to verify if anyone knows.
So I guess that the top of the exhaust stroke is TDC.? Just trying to verify if anyone knows.
any time the piston reaches the highest point in the cylider .. its at TDC top dead center... it has nothing to do with the valves
rotate the motor and align the crank marker to 0... if you have a valve cover off, make sure both valves are closed
02-17-2007, 07:29 PM
#10
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RE: Help! Need to find TDC with no distributor or piston stop.
ORIGINAL: AdderMk2
apparently you dont read
any time the piston reaches the highest point in the cylider .. its at TDC top dead center... it has nothing to do with the valves
rotate the motor and align the crank marker to 0... if you have a valve cover off, make sore one of the valves is open
ORIGINAL: Evil_F
So I guess that the top of the exhaust stroke is TDC.? Just trying to verify if anyone knows.
So I guess that the top of the exhaust stroke is TDC.? Just trying to verify if anyone knows.
any time the piston reaches the highest point in the cylider .. its at TDC top dead center... it has nothing to do with the valves
rotate the motor and align the crank marker to 0... if you have a valve cover off, make sore one of the valves is open
I have fixed the dizzy and now I need to put it back in.