Magone
Forum Newbie
Posts: 2
Reg: 08-18-12
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 08-18-12 10:36 AM - Post#2260611
Hi, im new to this forum, i used to be most at the jeep forums, but i recently bought a scout ii with a sbc350/th350 and have an issue with the trany so a friend gave me a link to this forum, long story short, i bought the scout as a not running because there was no transfer case installed, so i installed the trasnfer case, put fluid in the th350 (was almost dry, it had about 2qt), started the car and let it idle about 10 min, then when i shift to 1st i need press some the gas so gear can engage, and when 1st gear comes in it hits/hammers really hard, same think with the reverse, im thinkin this weekend on turn some the vacuum modulator screw and see what happens, anything else i could/should check??
The car was parked about half year, due to a transfer case problem, before that the car was running fine..
Lot of thanks for all ur replies 
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 gchemist
Senior Chevytalk Moderator
Posts: 20822
Loc: Austin, TX 78748
Reg: 05-09-00
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08-19-12 07:07 AM - Post#2260888
In response to Magone
Welcome to the site.
The 350TH has a detent cable that attaches to the carb. Is it attached properly? Does is move without binding? Do you know to how to set the cable? What does the oil pan look like? Is it square with a corner cut off? Or does look like an island with different sides?
Adjust the cable by this method: http://www.73-87.com/7387garage/drivetrain /detent....
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS |
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Magone
Forum Newbie
Posts: 2
Reg: 08-18-12
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08-19-12 10:30 PM - Post#2261169
In response to gchemist
Hi thaanks, yes the cable its conectect, and yes the oil pan its a square with a slide cut in a corner
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gchemist
Senior Chevytalk Moderator
Posts: 20822
Loc: Austin, TX 78748
Reg: 05-09-00
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08-20-12 07:46 AM - Post#2261258
In response to Magone
Check the governor. Broken gears on the govenor affect shifting.
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS |
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SBCpower
Forum Newbie
Posts: 23
Reg: 12-13-12
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12-14-12 03:43 PM - Post#2297928
In response to Magone
make sure that all your vacuum lines are on right. I had an 84 k10 with a TH350 and after doing a tune up on the engine i pulled it out of the garage and couldn't figure out why it wouldn't shift out of first. So i pulled it back in and checked the detent cable and finally i crawled under and followed the vacuum hose back to the motor and it turns out i knocked it off when changing the plugs. after i reattached it the truck shifted fine
1987 Chevrolet V10 silverado TBI 305 700R4
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56sedandelivery
Valued Contributor
Posts: 2557
Age: 61
Loc: Everett, Wa.
Reg: 02-26-08
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12-19-12 10:05 PM - Post#2299488
In response to SBCpower
Sounds like the seals in the clutch packs have gotten "hard". Does it slam into gear after the trans is warmed up? Might try a can of "Trans Medic", or a similar product; these basically permiate the seals with chemicals that make them soft and pliable again. However, it's usually just a temporary fix; if it fixes the problem, you've isolated what needs to be done............rebuild/reseal time. Butch/567sedandelivery.
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