Engine: JDM D15b Vtec

Question:

If cam timing is off by 1 tooth, would I be able to set the Igniton timing w/ a timing light to 16 Degrees?

 

And have it run well? No.

 

So you are saying that, the distributor would be able to adjust far enough to get the pointer on the red line on the crank pulley?

I guess that is my real question. I understand that if cam timing is off that it's a bad thing, and would need to be corrected. Im just wondering if checking igniton timing is a good way to confirm cam timing.

Thank to all!

-Keith

 

 

Oh, I see what you mean. If you properly set the ignition timing and then replaced the timing belt a tooth off, you'd be able to see a noticeable difference in when the spark is occurring. You could at least partially compensate for this by adjusting the ignition timing but your valves would still be opening and closing at the wrong times, causing the motor to run poorly if at all.

 

Well, I put a timing light on it yesterday. With the distributor fully advanced the best we could do was a hair past 0 degrees.


Would this mean the Cam timing probably needs to be reset?

Thanks again.

-Keith

 

i think i have this same problem with my d15b so the answers are appreciated

 

Are you having hesitation/lowend power problems?

 

kinda and i cant move my distributor at all without the car boggin out and its slammed to the right

 

Come on TECH....

 

Make sure you're setting the timing properly. For OBD1, the little blue connector next to the ECU needs to be jumped and the timing gun pickup must be on the #1 plug wire. If you have that right and your cap & rotor are in good condition then you should really inspect the timing belt. Your problems can be caused by incorrect valve timing but there's only one way to know for sure.

 

Well, im pretty sure cam timing must be the culprit. We gonna take the valve cover loose and the top belt cover off and check it out. Might have to break the tensioner loose and move the camgear back one tooth.

Anymore advice is greatly appreciated.

Happy Holidays!

-Keith

 

For the record, It was the cam timing... Off one tooth. We took the top cover off and busted the tensioner loose, pulled the belt off, and turned the cam gear back one tooth.

Man those timing marks on the cam gear are sketchy, and a little hard to read.

Runs great now!