Author Topic: having trans problems  (Read 7640 times)

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Offline TurboCajun

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having trans problems
« on: June 21 2014, 02:25:09 PM »
last week while driving I noticed the the trans was acting strange, from 1-2 gear seemed like it was slipping or struggling to go to 2nd gear. next stop I unhooked the TV cable and pulled a few times then readjusted, the reaction was the same for about 10 min of driving then something changed, now it revs up high before shifting into 2nd drive normal, but when taking off pretty hard it doesnt want to shift into 2nd gear, linkage is still working like it should P,R,N,D,2,1 but if I put the shift in 2nd gear it will not shift out of first until I shift to 3rd, if I down shift form 3rd to 2nd I goes into 1st. my guess would be something in the valve body, but looking for other opinions  :icon_confused:
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline TexasT

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Re: having trans problems
« Reply #1 on: June 21 2014, 05:50:54 PM »
Sounds like you smoked the band. Time for an overhaul.
Rich

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Offline TurboCajun

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Re: having trans problems
« Reply #2 on: June 22 2014, 01:33:37 PM »
I have bigger problems now timing chain broke last night

85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline TexasT

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Re: having trans problems
« Reply #3 on: June 22 2014, 03:49:05 PM »
Yeah, I saw pix in the other thread. That is some bad luck.

That chain looks to be of poor quality. As Steve asked, what brand was it.
Rich

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Offline Steve Wood

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Re: having trans problems
« Reply #4 on: June 22 2014, 03:53:53 PM »
It's a progear from the number. I would go back with a rollmaster I think

Steve

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Offline TurboCajun

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Re: having trans problems
« Reply #5 on: August 04 2014, 07:58:19 PM »
got the motor back together and running , but still having the problems with the tranny.
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline TexasT

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Re: having trans problems
« Reply #6 on: August 04 2014, 08:09:31 PM »
I stand by my original assessment. Let me know if you want my recommendation s.
Rich

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Offline TurboCajun

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Re: having trans problems
« Reply #7 on: August 04 2014, 09:16:45 PM »
Please do TexasT
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline TexasT

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Re: having trans problems
« Reply #8 on: August 05 2014, 11:24:22 AM »
Have you looked over my overhaul thread?
How much are you wanting to spend? With your power I would go to a billet shaft forward drum and dual feed the directs. Not absolutely necessary but really gives piece of mind. That said I didn't because I didn't have the budget.

Really needs a bigger 2nd servo. I used a sonnax but the ck one is a bit bigger, its a pickem. I would go with a carbon band(and I did). I am told these are set up differently than the red and stock band but tou can consult your builder or give d husek a call. He is super helpful. If you don't have it you need a larger boost and rev boost valves and the 700 spring. A shift kit might include these but Mr husek can hook you up with these also.  I used a hard pair of rings in the pump and a sonnax slide spring. I stayed with the seven vane. I saw no need to go with more.if yours is the 87 it should already have he hard stator support and hard sun shell bit for about $40 it would hurt to put new ones in while it is apart. I have red raybestos stage 1 frictions in the direct and stock tans in the rest. Also you should consider cutting the piston on the overdrive and adding an extra friction. Hopefully your builder can do this. If not it might not be the builder for you.
Let me know if you have questions.
Rich

"Goals without actions are just dreams."

Offline TexasT

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Re: having trans problems
« Reply #9 on: August 05 2014, 11:35:54 AM »
Also, those clearances in the atsg manual aren't optional. They didn't just pick them out of thin air. The parts need to be measured and clearances set just like crrank and rods on an engine. The gnttype.org and jakesperforman ce.com have pretty good pix and how to for that.
If your builder can't set the clearances I doubt your trans will last long.
Rich

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Offline TexasT

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Re: having trans problems
« Reply #10 on: August 05 2014, 08:15:57 PM »
http://realoldspower.prophpbb.com/topic3814.html
Here is another thread with pix and how to. Good info.
What I have learned while studying for my build is that there are many ways and thoughts on how to put one together. You just have to figure out what works for you.
Rich

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Offline TexasT

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Re: having trans problems
« Reply #11 on: August 05 2014, 08:27:31 PM »
Rich

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Offline TurboCajun

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Re: having trans problems
« Reply #12 on: August 05 2014, 08:28:48 PM »
I just went thru your tread and I dont think that I will ever try to do one myself, But thumbs up to you for getting it done. I will do some more reading and try and figure out what I will do. First thing is try to save $$$. Thanks for the info
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline TexasT

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Re: having trans problems
« Reply #13 on: August 06 2014, 02:01:28 PM »
I didn't find any of it particularly difficult. The hard parts involves looking for answers to things trans guys probably have known for years or decades. The ck book and several others on auto trans overhaul were indispensable. If you or anyone wants to try I'm here for support. I surely don't know much but things crop up and I'd try to help.
Rich

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Offline gusszgs

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Re: having trans problems
« Reply #14 on: August 06 2014, 07:11:07 PM »
That one from Jake is good on ttype.org..... ...seems it never got finished though. Or maybe that's all that's needed  :102:
Jim
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