Jaret Posted February 14, 2022 Share Posted February 14, 2022 I recently picked up cabover for basicly free just the price to haul it home .Now here's what guy told me the motor is basicly new inside witch I suspected may have been a lie until I got it running had been stored inside a shed for 12 yrs so a few new filters and oil change fresh fuel and the old e9 flashed up with ease a little puff of black smoke and run smooth.Now the guy also told me he had payed a mechanic to replace clutch but had a falling out with him and he didn't hook up linkage or put exhaust back on witch I did .here's my issue I fired up truck put in gear and nothing so adjusted as per instructed by Google and still nothing I think he might have put discs in backwards clutch wont disengage only way to find out for sure is split engine/ tranny 12 speed maxitorque by the way big heavy job .or should I put the truck up for sale and get out of it and make a few buck and save the headache what do you think Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/ Share on other sites More sharing options...
mrsmackpaul Posted February 14, 2022 Share Posted February 14, 2022 Your clutch isnt adjusted right, even if the plates are in backwards it should grip Back to the drawing board on clutch adjustment I think or maybe the linkage and or cable isnt hooked up right Paul Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489374 Share on other sites More sharing options...
BOBWhite Posted February 14, 2022 Share Posted February 14, 2022 You're Going to kick yourself for getting rid of it, I know I did. That truck and that motor is worth the trouble trust me, once your hauling and you realize that you can out run any truck on the road you'll know what I mean. And Picture's too. I want to see it! Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489375 Share on other sites More sharing options...
MACKS Posted February 14, 2022 Share Posted February 14, 2022 How does the pedal feel,do you have free play at the top,is it possible the trans is not engaging? Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489381 Share on other sites More sharing options...
Jaret Posted February 14, 2022 Author Share Posted February 14, 2022 Well I'll try again before I split them I took fork off and turned adjustment all the way so bearing was as close to motor as possible jumped in and started truck in gear and still nothing Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489406 Share on other sites More sharing options...
BOBWhite Posted February 14, 2022 Share Posted February 14, 2022 That shifting rod can get out of adjustment and make it so you can't shift into any gear. Check and see if its loose or try and put it in gear from down at the transmission. Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489407 Share on other sites More sharing options...
Brian L Blaylock Posted February 14, 2022 Share Posted February 14, 2022 It being a 12 speed it’s very possible that the air lines are not properly connected and it’s not shifting out of neutral 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489410 Share on other sites More sharing options...
Jaret Posted February 15, 2022 Author Share Posted February 15, 2022 Shit I never even thought about air lines good idea I'll download schematic for air lines and check that out thanx Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489436 Share on other sites More sharing options...
BOBWhite Posted February 15, 2022 Share Posted February 15, 2022 Mack 12 speed with that engine and Mack rear ends is arguably the best combination in any truck by any manufacture at least I think so. Send in some pics if you have time. and let me know if you want to sell it! Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489439 Share on other sites More sharing options...
mrsmackpaul Posted February 15, 2022 Share Posted February 15, 2022 7 hours ago, Brian L Blaylock said: It being a 12 speed it’s very possible that the air lines are not properly connected and it’s not shifting out of neutral Brian that makes the most sense out of any of our jibberish If the box has been out the airlines might not even be connected Paul Quote Link to comment https://www.bigmacktrucks.com/topic/69218-85-mh-600/#findComment-489441 Share on other sites More sharing options...
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