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Chrisv102581 05-05-2013 06:42 AM

BW 1339 questions
 
I'm new to the jeep community I have a 79 J10 with 360 th400 and bw1339. I have two questions about the TC, #1 should I be hearing any noise or actuation sounds when I switch the vacuum emergency lock switch and #2 should the TC make any regular noises while driving?, I'm think I'm getting some squeaking while turning.

CSP 05-05-2013 07:40 AM

No on both questions.

jamesdart 05-05-2013 07:40 AM

you should hear a little vaccum noise when shifting to emergency drive. the tc shouldnt be making any noise. squeeking is probably related to the universals. front driveshaft has 3, front axle has 2, rear driveshaft has 2. if its only when turning it could be the front axle universals. if its making a banging noise when under load, its probably the chain in the tc.

Chrisv102581 05-05-2013 07:50 AM

How can I test if the vacuum locker is actually working?... I hear the vacuum noise and all the lines are all new also how much vacuum should I have at the switch and the case? Thanks in advance

jamesdart 05-05-2013 07:54 AM

check out ifsja or fsjnetwork there is a lot of info out there about the qt case. im not sure about the vac reading. they are very small lines. i never tested. do you still have the vac ball on the firewall? is the e drive shifter hooked up to that? the heat and e drive should be hooked up to the ball with a T or Y fitting

firebrick 05-06-2013 03:07 PM

You can tell if it engages by just going out and driving in circles or make to turns. You can definitely tell the difference. My steel lines were pinched so I just ran the rubber vacuum lines all the way from the e-switch to the case.

Chrisv102581 05-06-2013 04:53 PM

How should I tell when doing the circles....sorry I'm being difficult

pleontks 05-07-2013 12:19 AM

drive it around the field. turn the switch. drive it around the field. you WILL be able to tell


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