I just adjusted my timing . . .
I don't think it has ever been set before, and the car has 66K on it (95gsr).
Anyhow, the pointer on the belt cover was wayyy before the first tick. The first of the three ticks is 14deg BTDC. So, I'm guessing the car was running at about 11 deg.
Is it possible for the timing to retard over time?? I am pretty sure the car was idleing at 750-800rpms. It seems weird for it to be that low . . .
I went ahead and set it at about 18deg. I am pretty sure no one has messed with the timing before.

this was my first time to set the timing. Yes, i did jump the service connector. Any help/feedback is appreciated.

- kanobe -

 

Are you sure that the car was warmed up before doing it also?

 

I've found that the crank pulley TDC "white" mark isn't really true to TDC.

Using a positive piston stop and setting the timing belt gear to TDC on teh oil pump mark, and then putting the lower timing belt cover and crank pulley on, I've found that the crank pulley TDC "white" mark is to the right of the timing belt cover reference.

The crank was actually a little retarded relative to the crank pulley mark. So, the timing I was reading was a few degrees retarded. If I set it to 16 degrees BTDC, then it would really be something like 12 to 14 degrees BTDC. No easy way for me to tell precisely how many degrees of difference there was.

I'm not at all insinuating that this is true of all B-series engines tho, even tho it has happened on my GS-R and a friend's GS-R.

If this were also true for your motor, then it might have been even further retarded than what you're reading.

Just thought I'd put that out there.

 

In Vtec -
Yeah, those marks don't seem very accurate.


Yes, the car was warmed up, I was just driving for 1/2 hour. How is it possible to set the timing accurately? If the 18 deg tic-mark is really 16, should i set it ahead of the mark? Just keep advancing it and see if the car knocks?
I'm in TX now, so I am running 93 octane, but I go back to CA in Jan, so i don't want to be detinating on 91 . . .
thanks


ps - somebody will post the C-Speed racing how to. don't bother, we've already seen it.

 

ttt

anybody have any suggestions?

 

Well, if you have adjustable cam gears, you can do a little sumpin' sumpin' to ind out how many degrees you're off.

Use a degree wheel and piston stop to determine your true TDC. Put your lower timing belt cover and crank pulley back on and then immediately mark the crank pulley for true TDC (using the lower timing belt cover marking as a reference).

Then, put a pointer on the adj cam gears where the degree marks are and rotate the crankshaft. Rotate the crank pulley CCW from one pulley mark to the other pulley mark, using the lower timing belt cover marking as a guide. Count the number of degrees moved on the cam gears. Multiply that number by a factor of 2 and that's your difference in TDC timing marks. Then it's up to you to decide on whether it's "x" degrees advanced or retarded. It should be pretty logical.

 

The hardest part about the procedure is getting the crankshaft pulley bolt off the degree wheel without disturbing the crankshaft.

 

thanks