joep Posted October 27, 2014 Share Posted October 27, 2014 I am looking at buying a 1958 B61 with Quad. The diesel engine won't run and I'm not sure if it is stuck or not. Front end damage kept me from putting a socket on the crank to check. I am going back with a wrench next time. I can shift into all the gears in the main transmission but I can't get into any gears in the quad. All the glass has been busted out for a long time and I don't know if rain could have caused some trouble leaking down the sticks. The rubber boots on the sticks seem to be in fairly good condition but who knows? Could there be damage to the quad - water or whatever? Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/ Share on other sites More sharing options...
mowerman Posted October 27, 2014 Share Posted October 27, 2014 welcome aboard and your linkage is probably stuck very commen problem,,,gotta get underneathe with a bar and tap those big rods that runs thru the top cover,,,and chances are the engine is not stuck just grab the fan,and belts and give them a yank,,,it should turn that way good luck...bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264621 Share on other sites More sharing options...
Maddog13407 Posted October 29, 2014 Share Posted October 29, 2014 what he said, takes a lot to seize up an oily old Mack diesel and the auxillary shifter doesn't go into the box, goes to the rods like he said, very common for them t get worn and stuck between gears. could also not all be lined up, cause your dry shifting it. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264865 Share on other sites More sharing options...
NY-B61 Posted October 29, 2014 Share Posted October 29, 2014 Same thing happened with my Triplex after the truck sat for five or six years. I (gently) used a pry bar and rubber mallet to free the rods and then shot all moving parts a couple of times with my grease gun. Everything's been fine since. Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264871 Share on other sites More sharing options...
Joe Ditchkus Posted October 29, 2014 Share Posted October 29, 2014 As the others said wear or someone was in there shifting it playing around and got linkage caught between the gears. It happens a with my 5X4 in my Brockway if you do not shift the auxiliary square. Joe D. Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264886 Share on other sites More sharing options...
joep Posted October 30, 2014 Author Share Posted October 30, 2014 I've never seen so many quick responses in a forum!! Thanks to all who replied. Based on your info I am charging ahead with the purchase. If all goes well I should have it delivered in a few weeks or so. Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264969 Share on other sites More sharing options...
Maddog13407 Posted October 30, 2014 Share Posted October 30, 2014 fair warning, we DONT like to give info out without pictures!! we love pictures haha Quote Link to comment https://www.bigmacktrucks.com/topic/37506-b61-with-quad-cant-shift-into-any-quad-gears/#findComment-264987 Share on other sites More sharing options...
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