Problem installing CPS

[nissota]

I got my engine recently rebuilt and I am trying to install the CPS as per instructions from the TSRM. http://born2drv.com/TSRM/Service Manual/

1. The first thing I do is turn the engine clockwise until I see the lobe of the #1
intake cam through the oil filler hole

2. I then turned the engine 120 degrees counterclockwise

3. and then 10 - 40 degrees clockwise.

My problem is when I reach the last step I am nowhere near the 0 mark on the timing cover.

I will attach a diagram showing you where I am in step 1 when I see the lobe of the cam.

Does this mean that my timing belt was installed incorrectly?

 

[GrimJack]

Maybe.

Pull off the top timing belt cover - the big black piece that says 7M-GTE on the front of your engine. Turn the engine clockwise until the front main pulley shows that you are at top dead center. Check that the matchmarks on the cam gears are lined up with the notches in the top of the rear timing cover plate. If everything lines up, you are fine.

If it doesn't line up, then your timing belt was installed correctly.

 

[nissota]

Maybe.

Pull off the top timing belt cover - the big black piece that says 7M-GTE on the front of your engine. Turn the engine clockwise until the front main pulley shows that you are at top dead center. Check that the matchmarks on the cam gears are lined up with the notches in the top of the rear timing cover plate. If everything lines up, you are fine.

If it doesn't line up, then your timing belt was installed correctly.

Thanks. I will do this in the morning.

 

[87_7MGTE]

if you dont wanna take the timing belt cover off, take the oil filler cap off and see if the cam lobe is pointing up while the bottom end is at 0.

 

[shaeff]

if the cams are alligned with the matchmarks on the back timing plate, and the crank at 0*, do this:

another thing: if you set the base timing (cams and crank), rotate the motor, and when it comes back around, they're not lining up anymore, chances are you bent the timing belt tensioner. if that's bent, the belt won't hold time.

-shaeff

 

[IJ.]

After verifying that the cam timing is correct you can retension the belt easily.

It's spring loaded there's a plug in the front cover you can pull, turn the motor a few degrees clockwise loosen the 14mm bolt in there the spring will take up and slack then tighten the bolt replace the plug and you're good to go.

 

[IHI-RHC7]

Another thing to consider is that the pulley slipped, and everything is timed correcly, but the pulley is lying...

 

[supra90turbo]

So the spring on the tensioner provides enough belt tension alone?
I always pulled it a little bit tighter.

 

[IHI-RHC7]

yes, the spring is the tension. The rule is to loosen the bolt and turn the crank unill the cams create slack between the cam and crank, which the spring in the tensioner pulls out. Then tighten the bolt and you're set.

 

[nissota]

I checked the timing this morning and it seems to be fine.

The car is still NOT starting.

I moved the CPS one tooth forward and backwards and the result is the same.

It kicks over when i try to start it which is an indication that fuel and spark are present.

I checked the ECU codes and I get the consistent flash which means no codes are present.

What next?

 

[GrimJack]

First up, I'd unplug the AFM and see if it'll start then. Car should start without the AFM plugged in, although it won't rev worth a damn.

Next I'd run the diagnostic procedure on your cps, isc, and tps.

These are really general steps, if anyone else has more targetted advice, take theirs first!

 

[chriso]

Looks to me like your intake cam is a tooth off on the gear.

 

[IHI-RHC7]

Looks to me like your intake cam is a tooth off on the gear.

That may be, but the car should run one tooth off, just not well.
Are you smelling fuel? I seems like maybe you are having a spark issue, is the micro ground strap intact running to the coil bracket? are all of your wires in good shape going to the coil pack, cps, ignitor, etc?
Did you have the cam gears off of the cams at any time?

 

[hottscennessey]

did the car ever run?

 

[IJ.]

So the spring on the tensioner provides enough belt tension alone?
I always pulled it a little bit tighter.

Kurt: Correct this is why it's important to install a new spring during a rebuild!

 

[nissota]

did the car ever run?

Yes, but not in a few months while the engine was being rebuilt. My engine builder took far too long

 

[nissota]

That may be, but the car should run one tooth off, just not well.
Are you smelling fuel? I seems like maybe you are having a spark issue, is the micro ground strap intact running to the coil bracket? are all of your wires in good shape going to the coil pack, cps, ignitor, etc?
Did you have the cam gears off of the cams at any time?

Yes, I am smelling fuel and I see fuel vapor coming through the afm.

I tested the AFM and the CPS and it seems to be in range

I tested the coils and all of them are lower than factory specs 2.0ohms instead of 3. Is this a serious problem?

I am having problems checking the ignitor using the 2 x 1.5 battery method. I am not getting any continuity. Is there another way to test the ignitor. The nearest person I know with a supra lives quite some distance away.

Could this also be an ECU problem?

 

[nissota]

I have found two problems which are fuel-related.

1.

3 of the injectors were not firing. I ran some carb cleaner through them and then they started pulsing. I left them to soak in some wd40. I will send them later to be professionally cleaned and flowed.

2.

My injector resistor was not giving 2 of my injectors any current. I checked it with the multimeter and I am getting no resistance from the output that goes to those 2 injectors, I think it was 1 and 4.

I ordered a replacement this morning.

Everything else looks like it is in order. I put a test bulb in the injector connections and the computer is pulsing the injector.

The coil output seems to be a little low in my opinion even with the new plug wires but it should start the car.

I will keep you informed...

 

[mhopemk3]

I checked the timing this morning and it seems to be fine.

The car is still NOT starting.

I moved the CPS one tooth forward and backwards and the result is the same.

It kicks over when i try to start it which is an indication that fuel and spark are present.

I checked the ECU codes and I get the consistent flash which means no codes are present.

What next?

Dude that CPS is not aligned right (at least by your pic) if the cam gears are on mark and the pulley on 0.. Go back and look at the pick Shaeff posted. When you install the CPS it will turn on you. Turn it more left and then insert it. It should rotate into the correct position.

 

[lagged]

youve really gotta get on your knees and make sure that those cam gears are lined up properly. being one tooth off can send you on a wild goose chase...ask me how i know.