KA24e won't hold idle/intake backfiring/leak?

Information on the naturally-aspirated KA24E and KA24DE engines.
ChromeMouth
Posts: 11
Joined: Mon Jan 16, 2006 3:05 pm

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So after jokes about the interior fuse box housing, self quote, "nothing important," I checked, and turns out I had no fuse in the Electronics fuse spot. Put one in, crank car, starts for the first time since I've owned it. Dies shortly thereafter.

My friend comes over to help, we play with timing by rotating the dizzy all the while (best results always seemed to come from turning it full clockwise). We heard a big air sound, but it was just that I forgot to reconnect the big vaccum line running off the left rear side of the upper intake manifold. Once we plugged that back on, it'd crank easy, and could be kept alive pretty well by blipping the gas, but still no idle.

Friend comes over with a timing light, we check the plug wires, all good, but then without any real explanation it quits starting. We tried for a while, changed round timing, but still nothing. When cranking now, it'll seem like it's backfiring in the intake at times, and other times it'll make a mouse-like squeak which my friend thinks is a leak in the gasket for the upper intake manifold. Anyway, Battery was down to about 25-30% charge, but even with a jump starter it wouldn't fire. I'm letting the battery get back to full charge and am going to try again, and will try refreshing the gas since it's sat for a decent while, but no explanation really.

The only thing is on the dizzy, there's a little metal flap screwed on, next to where the wiring comes into the dizzy, that has nothing attatched to it at all, and no wires nearby to plug on to it. That's the only thing we thought might have something to do with it, past that, myself and my friends are stumped. Any suggestions or ideas?


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Rev_D21
Posts: 5946
Joined: Sun Jan 12, 2003 9:49 pm
Car: 1986.5 D21 LB HD 2WD V6 5Speed
1991 D21 Reg 2WD Auto
1995 D21 Reg 2WD 5Spd
1996 D21 Reg 4WD 5Spd
2012 Versa 1.6S 5-Speed
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Can you get a pic of the dizzy part you are talking about. You might have skipped a tooth on the timing chain.

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DubsSuck
Posts: 721
Joined: Tue Nov 11, 2008 10:14 am
Car: s13 hatch

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Check the cam timing, crank it to TDC and if your cams on cylinder 1 are NOT pointing away from each other that would be your problem. either that our you need to adjust the IACV (Idle air control valve)


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