Stock 85 tran

[crazygn]

Iwas going to post it in the tran sec but i tought you guy could help me with it faster. Does any one no how fast you can go with a stock 85 tran or what kind of power it can hold i think i killed mine

 

[cool 84]

As far as strength goes, the 84-85 is identical to the 86-87. I in 86 they came with a bigger servo for crisper second gear shifts and more holding power for the band. Most of the 86-87s I've driven seem to shift just a little later than the hotairs also.

With a good shift kit the hotairs should hold just as much power as the later cars.

 

[crazygn]

I hope that i just droped some thing inside maybe a spring or some thing . It wont shift to 2nd , the only way it will is if i hold 1st very long then let my foot off the gas all the way , then get back on the gas then it go's in 2nd.


The thing that makes my mad is i ran my race chip and had my best 60' so far so i know i would have droped my time some.

I guess the only thing is to drop the pan and see what see looks like .

 

[Stephen Soulsby]

If I'm not mistaken the BRF transmissions also had hardened input shafts and the BQ did not. When I ran the quarter mile in my '84 I had the same exact problem on what would have been my best run. I beleive I threw a governor spring. When you pull the pan, take out the governor and inspect it closely. I just threw in a BRF transmission. I would like to fix and rebuilt the original BQ just to keep it more original. I'd sell my BRF for the cost of a good rebuild if I could.

 

[crazygn]

I dont know alot about these trannys if it is the spring can i just put it back in. Or what would i have to do. I am also going to look into a better servo and shift kit.

thanks guys

 

[Stephen Soulsby]

I dunno. I have not yet had to fix this problem personally. I have a tendancy to just replace the damn thing. Worst case scenario, you would have to buy a new governor from the dealership. That is assuming that it is indeed a governor problem. Or, I'll sell you my BRF transmission with 14,000 miles for $800. I assume you would rather fix your problem and save some money.

 

[crazygn]

I'll keep that in mind, but iam in the middle of a bigger turbo , injectors and stall,. Maybe it some thing little and easy to fix, my luck it wont be .

 

[cool 84]

So, is the problem a very late 1-2 shift only? Are you sure when you wind it out in first it's not going straight to third and skipping over second?

 

[crazygn]

Now that i think about it it might be , i did seem like i was missing a gear but i was so mad i didn't care at the time.

What would that be maybe the belt or some thing.

 

[crazygn]

Ok i took it for a ride with it cold and it does go in 2nd but very slow and at a high rpm if i am easy on the gas. If iam hard on the gas it wont shift at all. 3rd seems to shift ok but very slow to.

Did i burn some thing up , i do want to drop the pan and check the fluid and filter real good. Make sure i did not lose the gev spring.

 

[Stephen Soulsby]

The next thing to do is drop the pan and take a good hard look. You may also want to check the 1-2 accumulator spring (held in by 4 or 6 bolts). It would make a very soft shift, but usually not a late one. Just something else to check. Look for big peices of clutch also. If you see any big sections of clutch disk, just plan on a rebuild.

 

[crazygn]

If the weather is nice when i get up i'll drop the pan and let you guys know what i find.


thanks for the help, kevin

 

[CHECKMATE]

I like the new time you posted I think it may still be faster than some of those riceburners

 

[crazygn]

Yea i raced a honda to and let off after the 60' and still ran a 9.9 in the 1/8 to his 10.4

 

[crazygn]

well i dont see any thing bad when i droped the pan and the fuild and filter look good and no springs any where in the pan . Every thing looks good, now what do i do. can i check any thing else now that the pan is off.

 

[Stephen Soulsby]

Pull out the governor. It is held in by about 4 bolts. It is located twords the rear of the trans. Look for where the speedo cable goes in. Then go to the bottom of the trans there is a cover plate that you remove. Be careful not to damage the gasket if you do not live near a GM dealership to get a new gasket.

 

[crazygn]

I pulled that a little bit ago and the gears look good and the spring and bearing are still there. Any other idea'sthat i can check.

 

[Stephen Soulsby]

Next check the 1-2 accumulator spring. They do break often. Although I doubt this is the problem. I would be inclined to take it to a professional afterwards and either look at replacement or a rebuild. A good rebuild will cost around $900-$1400 depending on your location and any other problems that are not fixed just with a rebuild. If you have it rebuilt, pay a little extra money and get a TransGo shift kit installed. If you decide to replace, it is a good opportunity to swap in a BRF transmission that may already have some nice work done to it.. This is about where my knowledge of these complex transmissions end. Good luck!

 

[crazygn]

Do you know wheere to find the 1-2 spring in this thing.


I wont have that kind of money for sure, it looks like i'll be putting in a turbo 350-400 and want have od.

 

[Stephen Soulsby]

Look twords the front of the car I beleive it's more on the passengers side. It sits right in front of the valve body in an aluminum housing held on by 4-6 bolts (don't remember exactly). The housing has a round shape.