Poppet springs - 3000GT/Stealth International Message Center

gto3000gt · 06-20-2008, 10:52 PM

hi guys. first of all its a 18 spline awd trannsaxle.

I finally tore apart the tranny since my car wouldn't go into 1st gear with or without the car being turned on.

First thing I noticed was on the first gear synchros, the poppet springs were sitting upright, instead of pushing outward against the poppet balls. Will this affect why it wouldn't go into first gear with the shift connection control assembly? If I manually pull the synchro into first, it would go in, but if I do it with the linkage with the bell housing on, it feels like its binding.

pics of the poppet springs sitting straight up:

pics of the springs itself, partially broken:

the spring on the far right doesn't look oem, maybe it was rebuilt before?

MustGoFaster · 06-20-2008, 11:00 PM

With out those in there properly, there is nothing to push on the syncro really. Were they jammed in there or loose? But yes that is most likely the cause of your issues. How did it go into second gear?

gto3000gt · 06-20-2008, 11:07 PM

i pulled the gear off and stuff, and they were just sitting like that. For some reason it went into second gear easily still, but it wouldn't go into first at all. even with almighty force.

Although with the car on, I put it into 2nd gear without pushing in the clutch and the car did not move at all, but the guy told me the clutch was "dead" when I bought it.

gto3000gt · 06-21-2008, 02:43 AM

Well.. I put everything back together with the springs on correctly, and still won't go into 1st... what else can it be?

3startuna · 06-21-2008, 02:58 AM

lol @ poppet balls

06-20-2008, 10:52 PM	#1 (permalink)
gto3000gt Forum Member Join Date: Dec 2004 Location: San Jose, CALI Drives: 92, 93 vr4 Trader Rating: (3)	Poppet springs hi guys. first of all its a 18 spline awd trannsaxle. I finally tore apart the tranny since my car wouldn't go into 1st gear with or without the car being turned on. First thing I noticed was on the first gear synchros, the poppet springs were sitting upright, instead of pushing outward against the poppet balls. Will this affect why it wouldn't go into first gear with the shift connection control assembly? If I manually pull the synchro into first, it would go in, but if I do it with the linkage with the bell housing on, it feels like its binding. pics of the poppet springs sitting straight up: pics of the springs itself, partially broken: the spring on the far right doesn't look oem, maybe it was rebuilt before? __________________ 1999 3000GT: injen intake, test pipe/race pipe, 3sx adjustable camber and toe arms, 3sx/addco 1" front sway bar, drilled/slotted rotors, ground control coilovers, KYB GR-2 struts, 18' stern ST-2 rims (chrome). 99 kazz lip inside: panasonic deck, sony amp, 10inch sub Crashed 1992 3000GT VR-4: sold 1993 3000GT VR-4: (Daily Driver) IPS single shot, vac. reduction, egr block off plates, HKS ssqv, Blitz Dual Turbo Timer 1988 Nissan 200sx aka s12 (Fun car/ drift car/ project car) ca20e -> ca18det -> sr20det swap, 6 point roll cage, greddy fmic, mbc @ 12 psi, 3in turbo back, greddy rs bov, black safc II, walbro 255lph, s13 suspension conversion, s14 seats, gutted backseat back, SSR longchamps 7 offset, welded diff

06-20-2008, 11:00 PM	#2 (permalink)
MustGoFaster Forum Member Join Date: Aug 2003 Location: Minnesota Drives: An AEM car in -10F Trader Rating: (9)	Re: Poppet springs With out those in there properly, there is nothing to push on the syncro really. Were they jammed in there or loose? But yes that is most likely the cause of your issues. How did it go into second gear? __________________ ~Ryan 92 Stealth R/T TT- Not exactly done- 93 RT TT- Not much of a car anymore. "This is a solution looking for a problem." - Not me

06-20-2008, 11:07 PM	#3 (permalink)
gto3000gt Forum Member Join Date: Dec 2004 Location: San Jose, CALI Drives: 92, 93 vr4 Trader Rating: (3)	Re: Poppet springs i pulled the gear off and stuff, and they were just sitting like that. For some reason it went into second gear easily still, but it wouldn't go into first at all. even with almighty force. Although with the car on, I put it into 2nd gear without pushing in the clutch and the car did not move at all, but the guy told me the clutch was "dead" when I bought it.

06-21-2008, 02:43 AM	#4 (permalink)
gto3000gt Forum Member Join Date: Dec 2004 Location: San Jose, CALI Drives: 92, 93 vr4 Trader Rating: (3)	Re: Poppet springs Well.. I put everything back together with the springs on correctly, and still won't go into 1st... what else can it be?

06-21-2008, 02:58 AM	#5 (permalink)
3startuna Damn It! Join Date: Oct 2006 Location: Florida Drives: Without Traction Trader Rating: (17)	Re: Poppet springs lol @ poppet balls __________________ 96 3000GT FWD TT -Rebuilt 2 bolt 8:1 block, balanced stock internals, valve job, 99 Lifters, Maximal Performance Motor mounts and valve cover!! Quaife LSD, ACT Max Extreme 6 puck, RPS flywheel, Greddy emanage Ultimate, custom fuel system i designed my self, profec B spec2, walbro 255lph, stock turbos, Braided steel upper and lower radiator hoses, KNN FPIK, FMIC, FM oil cooler, cusco Oil catch can, stillen DP, IPS 3" single, Full AC delete, stripped interior, Corbeau Forza 2 seat, 2 inch harness, ALL Greddy electronic gauges, brakes: 4 piston calipers from Yogurts TT, Hawk pads, Valvoline DOT 4, Russells steel lines Coming soon: Thats right 12G72TT

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