Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Sure fire way to find TDC ?
View Single Post
  #6 (permalink)  
Old 05-02-2002, 07:37 AM
Phat's Avatar
Phat Phat is offline
Toy builder
 
Last photo:
Join Date: Sep 2001
Location: COLD NORTHEAST
Posts: 223
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Only correct way to do it is as F1 has said ..Make a piston stop out of and old spark plug with a bolt welded in to it.Now turn the engine over by hand till the piston touches the stop ..mark the damper..now turn the engine back the other way till it stops ..mark the damper..Exactly in the middle of those 2 marks is TDC(This why you would do good if you could get a degree wheel in place) never do this with the starter motor or you will damage the motor..i also remove all plugs it just makes it easer to turn the motor over. This is one of those things that is wrong on 90% of the engines out there... It should be the first thing you do when building and engine and the heads are off. Bolt on tabs and damper's are allways wrong..i do mean allmost all the time. Plus the OEM ones slip all the time. Timing and engine by ear is just not and option any more 2 degrees is a lot to miss. So its a good rainy day project that costs nothing to do and helps with power..econmy...starting..and overheating problems. Set timing also at total advance(2500 rpms roughly 32-38 degrees total) and work back from there. Not static.(you know 4 degree before or 8 degrees thats just not getting your moneys worth)
Reply With Quote