V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

timing question on my 2.8

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Old Nov 26, 2003 | 05:20 PM
  #1  
PONTIAC86style's Avatar
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
timing question on my 2.8

in the middle of a timing chain replacement....(don't have the puller for the crank gear, and plus, it's cold out here in OH.....) i have properly alligned the gears to the position they need to be in, but i would like to know what position the rotor sould be in... is there a mark showing the postion it is supposed to be in?
also

i was able to place my finger in between the chain and the cam gear when i got the timing cover off.... is this a lose chain? or when i put the new stuff on there will it be the same?

just want to make sure that every thing is aligned when i put the car back together,i don't want to have to pull every thing back off to make an adjustment on somthing i missed with the cam gear or somthing.... thanks
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Old Nov 26, 2003 | 05:53 PM
  #2  
Doward's Avatar
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
Depends.

Did you rotate the crank to TDC #1, and do it that way (factory style) or rotate until the dots were aligned next to each other, and then put it on? (works also - just TDC is #4 instead)

As long as you put it on the same way it came off, you don't need to adjust the rotor - wouldn't hurt to check, though.
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Old Nov 26, 2003 | 11:10 PM
  #3  
PONTIAC86style's Avatar
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
i adjusted both the cam and crack pullys in line with the marks, i just cranked them by hand untill they were lined up, (thats what it told me to do in my haynes manual)
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Old Nov 26, 2003 | 11:13 PM
  #4  
PONTIAC86style's Avatar
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From: NE ohio
Car: Pontiac Firebird
Engine: 2800
Transmission: slushbox 700r4
*crank* not crack, sorry, it's been a long day....

i adjusted the gears that were on there, then took them off, i havent put the new one's on yet, they are both lined with the "dots", i guess it would be factory style
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Old Nov 29, 2003 | 02:45 AM
  #5  
TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
If you followed the Haynes manual, you should be okay. That's because the Haynes book says not to pull the chain off until you spin the engine to get the marks lined up. Once you remove the chain, don't spin the engine or the cam sprocket.

And if you could actually lift the chain off the cam sprocket and put your finger between the gear teeth and chain (so if someone started the engine you'd get your fingertip cut off), then wow, that sucker is way too lose, and I'm surprised it didn't skip a tooth on you! The chain should be very snug between the cam and crank sprockets.

Don't ever use the crank's center bolt to pull the new crank gear or balancer on... that's how my center bolt snapped.
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