How can i be sure that im timed correctly? With the cps and all.

 

It's timed right if all your sprokets were lined up correctly with the guides on the chain, while at TDC and installing the CPS housing into the exhaust cam as shown in my thread.

 

Does it matter which cycle of tdc #1 im at? I tried to retime with the v,c. Off but couldnt find the correct colored links at 10.and 2

 

It would take you many many tries to get the chain marks to line up again w/o removing the chain and timing it from scratch.

Place a screw driver in the #1 spark plug hole and rotate the engine until you are at TDC comp stroke which would have the screw driver rise up.

The easiest way to make sure youre still in time is to line up the factory harmonic balancer timing mark with the timing mark on the front cover. If the harmonic balancer timing mark is lined up, and the intake and exhaust are at 2 and 10 (respectively), you are good to go.

Prob is u have that ati balancer and I dont think it has the same timing marks.

 

So im okay though? I cranked until #1 was high as it would go far as i could tell and reclocked the position sensor thats why im asking. I had to rotate the sensor to do it,

And yeah no timing mark on the ati unfortunately.

 

There is room for error if you dont have all the timing marks lined up perfectly though. Especially the harmonic pulley and front cover timing marks. Those need to be lined up dead on.

Just rotating the engine wont get that dead on without a comp gauge or lining up the marks.

If timed and lined up correctly, the CPS housing should slide right into the hex of the exhaust cam without issue or rotating.

If it rotates it will through the CPS outta time.

 

Fak! Well i gotta figure that out then

 

Either use your comp gauge to determine actual TDC at the comp stroke, or press off the ATI and silde on the factory harmonic pulley just to line up the timing marks on the front cover.

I think using a comp gauge to determine TDC is covered in the LSJ build book.

 

So i gotta get a comp gauge then lol
Somehow my buddy and i did it last year haha

 

How have u been doing your compressions tests??

Or press your ATI off and slide the factory harmonic balancer on just for timing. That isnt hard to do.

 

Somehow my buddy and i timed it last year just with a screwdriver in cyl 1 and resetting the cam sensor

 

You guys were lucky and precise at the same time haha.

I've always used the screw driver as a guide, but even with the screw driver all the way up it was slightly off on the timing mark on the harmonic balancer and front cover mark.

 

Yuck. Ill need a stock damper if i wanna do this right then

 

Or comp gauge

 

Comp gauge hose in cyl4, screwdriver in cyl1. Rotate forward until you start getting air from the hose in cyl4, use the screwdriver in cyl1 to find tdc

Line hash mark up with nub. Install. I recommend taking the sensor out of the housing and stick your finger up there to keep the wheel from rotating.

 

So your saying install compression gauge in cyl 4 and it will start to build air when the pistons near the top? I'll read about it in the book.

 

Just put the tube in and your thumb over the end. When the screwdriver in cyl1 starts coming up, so is cyl4. If it doesn't start pushing air out, go another rotation.

 

Gotcha!

 

Think im just gonna get it towed to gm guys, too many ideas not enough diagnostic tools and time.

Matt told me it could have to do with my power steering light being on could have to do with a ground issue somewhere, and the fact that it was taking a while to start could be low oil pressure. I did find a small seep around the front cover.

 

Scratch that, its going to performance autowerks so matt can just work on it! lol

 

I was going to tell you to tow it there, they'll actually find the problem for the money vs the dealer not finding it and charging you more

 

Yup. Only thing im losing out on is the tow cause its 30 miles away vs the dealer which is 5 haha. But it will be worth its weight in gold im sure,

 

Great choice, Matt and Dave will get you all squared away.

 

You have AAA? That will make the tow cheaper

 

Well its good your getting it checked out man hope its nothing serious