CowboyDren

As in 0.4 sec off your ET? That's outstanding.

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Breakinit

Yup...16.6 to at 16.2(with brakin at the end)

Bob86ZZ4

Question: on a '94 do you need to do all this throttle blipping and disconnecting the tps? My son wants me to help him advance the timing on his '94 SE-R. I am a Chevy guy and don't know anything about his car (except I helped him put a new clutch in recently and that went very well). I have a timing light with adjustable advance settings so do I just time it by hooking up the light and shooting it at the marks? Thanks for any help. I've searched around here and can't find this answer in the archives. It must be there but I've missed it.

james vick

Yeah ya have to do the so called dance on the 94 if you don't have a consult or a n-probe or something like that handy. Here's a link the should help ya out.


http://www.se-r.net/engine/about_timing.html

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Bob86ZZ4

Thanks for that link. I just tried hooking up my timing light and can't seem to find any timing tab on the block. I can only seem some marks on the large pulley that has the wide belt on it. It's the outer pulley. The inner pulley on the crank shaft I can't see any marks on. I don't even think the nicks I see on the large pulley are timing marks. The look more like somebody nicked the pulley for some reason along the way. I see no wide paint marks like described in the link. Shouldn't there be some sort of tab mounted on the engine to referance the timing marks on the pulley against? The only place I can get a good look at the pulley is straight down from the top. What am I missing? Thank you.

CowboyDren

Are you sure you're on the #1 spark plug? It's the one at the pulley end of the block, not the clutch end. Somebody may have also screwed up your pulley, but you're looking in the right place. Look at it from the top down, slightly towards the radiator, and there should be a bent plate with an indicator.

Bob86ZZ4

Yep, sure it's on cylinder 1. I do see marks that I'm guessing are the timing marks, even *** they look more like some knicks in the edge of the pulley. But, I don't see any timing tab or indicator to referance the marks against. I wonder if somebody busted it off or something.

CowboyDren

Bob, have you zeroed the timing light? You mentioned that it has adjustable advance; you want to set this to 0° at least until you get oriented properly. It's believable that the timing tab is broken, and it's believable that the marks are hard to read (they really aren't big enough). You just might be SOL.

When a buddy and I put UR pulleys on his G20, he got blue pulleys. In a stroke of boredom, I went inside the house and got a bottle of florescent yellow acrylic hobby paint, and filled the timing marks with it. Then we sprayed over that section of the pulley with clear spray paint. WOW, what a good idea; the Xenon bulb in the timing light makes the marks SCREAM yellow, even in normal afternoon sunlight.

Bob86ZZ4

Yep, with the timing light set at zero. I think I can see the marks but no timing tab to compare them to. Oh well. Guess we just have to go by feel. I think we got it into timing mode because when I rotate the distributor I can see the marks go forward and backward with the timing light flashing.

gottabfast

my dilemma...my car idles ok around 750 when warmed up, no problems there. The timing seems to have been ridiculously advanced, the last of the 6 marks was an inch or so away from the timing post when I first put the light on it. So I shut it off, disconnected the TPS and turned it back on and raced the engine as stated in the FSM...with the TPS disconnected the car idles at 1500...So I set the timing with it idling at 1500 (is that ok?) Once that was done, I shut the car off and plugged the TPS back, then started her back up. I rechecked the timing and it was at 17, but the idle was at 1100 rpm. Can the timing be set with the TPS disconnected and the car idling at 1500?

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-Zack
-'91 SE-R, Aztec Red: JWT Pop-Charger, Fidanza Flywheel, JWT PP w/01 SE disc. AGXs w/GC coilovers (300/279) & C/C plates. NX2K Brakes w/Carbotech pads & Crown SS lines. Progress rear sway bar. Active Tuning RSTB, ES Bushings & motor mounts.

Bob86ZZ4

My guess would be "no." I think you need to follow the directions others have posted. Can't you get the idle adjusted according to directions? There is a small set screw that stops the air butterfly on the front side of the throttle body. I had to take mine out and take the stop nut off and clean up the threads with a wire brush and lube them well, then put it all back in. I also ran the screw down from the top so I could adjust it with a small phillips screwdriver. It had been installed with the head of the screw facing down, I couldn't get a screwdriver down there to adjust it. I put the stop nut on the underside as originally set up. I advanced the timing by turning the dist. forward (top away from the driver) a bit. Now the car has major loss of power so I have to set it back. Do I have to get it into timing mode to do so or can I just move the dist. back to the original position (I marked it before moving it)? Thanks.

gottabfast

You'll need to get it back into timing mode. My idle adjusting screw bottomed out, so I think I need to add adjustment somehow or get a new IAC...

aka_se-r

what happens when you unplug tps sensor and car wont stay on or turn on at all then what???i've tried it on my g20 to put in timing mode and i followed instructions given but havent had any luck i got a 91 g20 w sr20de engine..all stock.any info will help..also i want to raise rpm a little higher too...

CowboyDren

If your car dies when you disconnect the TPS, the odds are good that the idle is too low. Try adjusting the idle screw without getting the car into timing mode, then try to enter timing mode. Trial and error until the idle screw is backed out enough that the car keeps running with TPS disconnected. My '94 G20 is supposed to idle at 800 ±50, so it's pointless to set the base idle over 850 RPM.

In case it hasn't been mentioned before, you're best to go ahead and clean the TB, EGR, and BPT systems before you try to set the idle or timing. I haven't even gotten around to adjusting the idle or timing on my car, because I've only had it for a week, and I haven't had time to clean these systems yet. I wrote this damned article. How poetically just is that?

SE-Riouse_93

i have a 91 se-r, and i just put in a jdm motor in it and has 7 marks. do i set still at 15 degrees or where u put white paint. *** i neeed to go take it and smog it and i need to have the timming correct.

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1991 clean white SE-R -Bone stock- another DD (second owner)

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nismo94tuner

Damn I feel like a real noob right now. I have 6 timing marks. I set my timing right on the 5th mark. Now I don't know if that is 15* or 20*. I have a 91 classic. I'm assuming its 15* so I would be safe to raise it up to 19*, right?

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92 Sentra GTi-R
Small Snail Crew
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johnbrooks302

yes you would...as long as you runnin 91 octane or higher.

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nismo94tuner

Well, I run 93 all the time. I thought I had it set to almost 20* where it is currently. I'll have to get out the timing light again and see if I can gain a little more from playing with it!

johnbrooks302

do it do it

adg016

Incorrect...the new marks begin with 5 deg ATDC.