Tranny Slipping

[bordin34]

I have a small-block 727 with a 318 in my 1974 SE. Well, when i give it any more throttle than idle it just slips until you give it half throttle, which i only did once, then it goes into 2nd and smells like something was burning. Could this be a worn valvebody? it is the original motor and tranny. it also leaks some fluid.
Or could it be the linkage this car went from NJ to Texas back to NJ. Sometime when it was in texas the linkage had a problem and it looks like the owner did this.

[grouseman]

More likely a seal than a valve body problem, but I'm only going by my one rebuild. 

[ralley440]

could be a worn out ban could possibly ajust the front ban and get a little more use but probaly needs rebuilt

[John_Kunkel]

Driving any length of time without the throttle linkage connected to the transmission will cause severe transmission damage.

It's fried, time for an overhaul and don't run it without linkage or it'll fry again.

[Blue Pentastar]

It definatley needs that linkage to carb hooked up and adjusted after the rebuid. Other wise it shifts to soon and puts a lot of strain on the trans.

Mike Schrader

[bordin34]

So thats the carb linkage?
when I move the gear lever the plate moves?

[Todd Wilson]

So thats the carb linkage?
when I move the gear lever the plate moves?

You have a lever from the gear selector down to the tranny that moves it into the gear.   The throttle pressure linkage is a set of rods or 1 rod that goes from the carb to the tranny that adjusts line pressure in the tranny according to the movement of the throttle off the carb.

Here is a picture of a carb setup off a 4 barrel carb installation picture I did for someone a while back.  The rod is probably a single piece that goes down behind the engine to the tranny. There is a 3 piece linkage but I have only seen them in trucks. This has to be adjusted for it to shift right and have the right line pressure or the tranny slips and burns it up as John K said.




Todd

[bordin34]

I checked, and it has that lever and it looks lik eits working.

[bordin34]

I added some tranny fluid and it shift a lot better it still slips but only up to about 1700rpm then it works fine. I got it up to 40mph then i ran out of street.