Wtf!!!!!!!!!!!

[james_8997]

ok my truck wouldnt start...started trouble shooting, she was gettin air fuel and fire, which left timing. so i dug down to the time chain.wtf,,,,,i line up the timing marks you know up and down.....but i look at the dis. roter and its pointing at the number8 piston. the chain has a good inch of play in it. i know how to time a chevy 350 its easy but this is killin me. any ideals

[kcb37]

Sounds like you need to get a new timing chain and go from their!
Also your dizzy gear may be worn out, causing it to be off.

[james_8997]

whats i dizzy gear???

[Rod726]

Originally Posted by james_8997

whats i dizzy gear???

Gear on bottom of your distributer that meets up with the cam.

[james_8997]

o ok well ill check that when i pull the dis. tommorow to put it in time. can i change the gear if its bad or do i need tha whole dis???

[91nitro]

The crank gear mark is at 12 oclock position and the cam gear mark is at 6 oclock so they are lined up closest to each other and your rotor is pointing at no. 8 cylinder?

[TazExtreme3]

Originally Posted by james_8997

o ok well ill check that when i pull the dis. tommorow to put it in time. can i change the gear if its bad or do i need tha whole dis???

Yeah, You'll have to drive out the roll pin from the distributor shaft that holds the gear on. Pull it off and replace. Pretty simple.

[james_8997]

Originally Posted by 91nitro

The crank gear mark is at 12 oclock position and the cam gear mark is at 6 oclock so they are lined up closest to each other and your rotor is pointing at no. 8 cylinder?

yes, this is what i dont get

[dave89iroc]

chain dot to dot is TDC for #6, and both at the top is TDC for #1

you have to remember that the vortec cap has traces inside it, so you need to follow it to locate the individual contacts

sounds like your timing chain is ok, you happen to check compression before you tore it apart? fuel pressure?

[james_8997]

wait when retimed this thing i lined up the timing mark on tha balincer,,,,number one was TDC and tha rotor pointed at number 1 piston. started right up that was about 6 months ago,,,,and no tha chain is not fine, it has almost an inch of play in it...

[justy]

Sometimes if the gear is bad, You can leave the cap off and bump the ignition and see if the rotor spins. Sometimes it doesn't spin at all. Then you know something like a bad gear needs to be replaced. Or like for me a broken cam shaft.

[james_8997]

i know the rotor is spinnin because if you line up both marks at a 12 o clock pos... then the rotor is pointin at number one

[dave89iroc]

Originally Posted by james_8997

i know the rotor is spinnin because if you line up both marks at a 12 o clock pos... then the rotor is pointin at number one

then nothing is wrong with the timing chain

[james_8997]

THE MARKS are supposed to line up at 6 and 12 o'clock...rotor would be pointing at number one...i know for sure of that, even tha book says that..

[justy]

I don't know if I read everything correctly. But have you tried removing the distributor. Finding TDC on #1 piston (driver's side) Make sure cam is a 6 o' clock, crank at 12 o'clock. Drop distributor in pointing at #1. May need to bump the ignition with someone hold distributor to drop into oil pump. But once that is all buttoned up. It should start right up. If it's a 96 or newer. shouldn't need any distributor adjustments. I wonder if the chain slipped bad or what happened. But sounds like timing is off. If you got a inch of play in the timing chain, Could have stretch some over the years. Usually 1/2 inch is ok. I wouldn't think it would slip with 1 inch of play. But you never know.

[james_8997]

idk dude, ima change tha gears and chain, line it all back up, ree time it and pray

[justy]

and pray! LOL well sometimes thats what it takes. Yeah if the chain is that stretched. I would say it wouldn't be a bad idea to change the gears. Might be good preemptive maintenance.

[james_8997]

but still, it leaves the ? what happened? why did she just give up???

[masintenn]

I don't think you have a timing issue unless you were working on the dizzy or timing chain prior to your problem. You need to keep turning the engine until the timing marks line up and the rotor is pointing at #1. I believe you're 7 rotations off. At this point, you probably need a Tech2 scanner, which allows you to measure "cam retard" and get your distributor lined up properly.

These engines aren't timed in the conventional sense.

What is your fuel pressure?

[dave89iroc]

Originally Posted by james_8997

THE MARKS are supposed to line up at 6 and 12 o'clock...rotor would be pointing at number one...i know for sure of that, even tha book says that..

then your books are wrong, dot to dot is TDC, but for cylinder #6(dist. 180 out, crank 360 out)


if you won't listen to people who do this for a living, then I am not going to help you any more