Crankshaft/Cam dot-to-dot?
#1
TECH Regular
Thread Starter
Join Date: Apr 2002
Location: McChord AFB WA
Posts: 445
Likes: 0
Received 0 Likes
on
0 Posts
Crankshaft/Cam dot-to-dot?
Hey all,
I'm in the middle of a cam install G5X1 and I have a question concerning TDC/#1 firing position. To start off, when I pulled out the cam sprocket and removed the old cam, I put the new one in and I noticed that the crank dot looked a little off center. So, with the chain off of the sprocket I turned the crank one complete turn to align the dot again or bring it to the center. However, upon thinking about what I had done, I believe that I need to turn the crank one more complete turn to return the #1 piston to TDC/firing position and then align them dot-to-dot, is this correct?
Thanks in advance for any help,
Nate
I'm in the middle of a cam install G5X1 and I have a question concerning TDC/#1 firing position. To start off, when I pulled out the cam sprocket and removed the old cam, I put the new one in and I noticed that the crank dot looked a little off center. So, with the chain off of the sprocket I turned the crank one complete turn to align the dot again or bring it to the center. However, upon thinking about what I had done, I believe that I need to turn the crank one more complete turn to return the #1 piston to TDC/firing position and then align them dot-to-dot, is this correct?
Thanks in advance for any help,
Nate
#2
11 Second Club
iTrader: (8)
Join Date: Jan 2002
Location: SILSBEE TX
Posts: 1,782
Likes: 0
Received 0 Likes
on
0 Posts
WHAT you are thinking does not matter , stop and think with chain install one turn 2 times to the other one time , after install before installing cover roll over by hand 2-3 times to be sure dots align and to be sure values do not hit piston
good luch Johnny
good luch Johnny
#3
Registered User
Join Date: Jun 2002
Location: Forced Induction Heaven
Posts: 453
Likes: 0
Received 0 Likes
on
0 Posts
We just had a huge discussion on this board about this. #1 is not firing ATDC with DOT to DOT #6 is firing and #1 is on overlap. It confused me too. Do a search or if I can find it real quick I will post the link.
Here is the link.
https://ls1tech.com/forums/forced-induction/144540-cam-install-question-dot-dot-1-exhaust-compression.html
Here is the link.
https://ls1tech.com/forums/forced-induction/144540-cam-install-question-dot-dot-1-exhaust-compression.html
#4
TECH Regular
Thread Starter
Join Date: Apr 2002
Location: McChord AFB WA
Posts: 445
Likes: 0
Received 0 Likes
on
0 Posts
Thanks,
So, I don't need to turn the crank one more turn then to bring it back to where it was when I had first pulled the sprocket off? Just go dot-to-dot and that's it?
So, I don't need to turn the crank one more turn then to bring it back to where it was when I had first pulled the sprocket off? Just go dot-to-dot and that's it?
#6
TECH Apprentice
Join Date: Jan 2002
Location: O'Fallon-MO.
Posts: 337
Likes: 0
Received 0 Likes
on
0 Posts
It don't matter dude,As long as its dot to dot the cam sensor will adjust even its 180 out which your thinking it is being you didn't turn it around another full turn.