mechohaulic

only one gummed up stud !! you came out lucky. many times due to time constrains head gaskets are changed with heads still clamped together by manifolds. it will work BUT life span of the gaskets may be shortened. when heads are set/torqued individually torque per head is tad more accurate.

seems time is closing in on all the ole timers; like Tex Ritter says in "Hillbilly Heaven song". I can't bring my toolbox with me ; think the heat will melt everything. I do my best Not to think of people in past tense. they seem to hang out even after they leave here. Glen Akers Left a wealth of knowledge for all to learn by. at Waterbury Mack it is Ole Man Al Dixon in the machine shop. His knowledge would fill a complete set of manuals.

you really know how to make a guy feel bad , LOL .. 8 am I was at set up for Kof C Church function; left for short term watching the clear skies thinking " I could make it to Bethlehem to see up close the B-73 then make it back in afternoon for K of C event, didn't make Bethlehem figuring I could make the Sunday half. we all know locally it was clouds and rain Sunday . that picture of the B-73 between "those other brands" is fantastic ; LMAO !!. it says - I'm older then you , see if you look this good when your my age !! Thanks for pictures..

I know ;; just have to keep bob on his toes. LOL . can't figure why my wife gets upset walking through a store and I say" there's a nice pair of t- ts. 😱

"sick puppy" LMAO !!! are we drinkin or bathin.

will be against my better judgement to ask for explanation of that statement ! nice truck from my point of view !! now how did twin peaks compare. LOL

interesting when the fins on outside are bent over from pressure washing out to in .looks clean and see how good we did blasting crap deeper in to cores. but it's too much work to clean from fan side out.

real nice looking unit, not over done. right color and chrome .. AND period correct "fish bowl 'fogs .

I like sea food also . unfortunately i get too much == I married a crab!!🤣

i do remember the ability to lock a horton fan; can't recall viscous being able to lock ? far as this unit = another question is "with warmer weather coming , truck runs warmer "" .. by chance warmer temps high enough that AC is being used?? answer -yes ::: now temps in front of radiator even hotter which will show on gauge. todays world with 3 cores in front of fan . collection of bugs etc greater also. have another brand of truck working on today for same issue. have to be extremely careful if using air hose or pressure washer to clean cores. I separated the AC core expecting the worse (truck hauls hay ) = actually wasn't that bad between cores. AC expansion valve/ dryer on order. the joys of retirement.

consider accuracy of the gauge could be off a tad. stays in green high side except able. big question is :: "fan stays running?? " as joey stated a viscous fan is continuously spinning ; unlike a horton which when not needed goes for the ride. viscous will spin appear to be doing something yet NOT fully engaged for engine cooling. the temp running high side could be due to number of variables. outer temp /load weight pulled/ amount of bugs etc in radiator=intercooler- ac cores. if this IS a viscous fan number one place to look first the bi-metal plate front center of fan hub, dirt/ crap collects stopping plate from flex pushing in plunger to transfer viscous fluid to second halve engaging fan.

another change in times " company had a roll of cable= speedo or tach with an assortment of different ends ; also the proper crip tool for fixed to cable drive ends. Jojo to answer your question above ::: most speedo spiral gears only slid onto the yoke. tightening the yoke nut compressed spiral against yoke/bearing. didn't require much for tight was only mated to speedo cable. as with much back then life was better. time killing on shuttle job , I would disconnect the speedo cable ride the highway after 5pm in summer and see alot. never showed a mile on speedo. can't have that fun today.

'62 ??? Mack ( B model ?) . on occasion knowing the model number helps. one battery box or two? I say two. box big enough for two 6 volt in series {== 12 volt} ? series parallel switch ? I go with the idea of checking cable terminal ends in box(es). even two sixes with jumper still only have two out cables

that speedo spiral should be a separate part from yoke. Tightening the nut/bolt on yoke to pinion is what keeps speedo drive gear tight. depending on problem with yoke ; seal leaking : a speedi -sleeve will repair wear surface. bad cap holes= that's another story.

looking at pics 3 & 4 showing bottom view of seal cover ; notice the pultruded section on seal cover between bottom bolts. that must line up on the rear housing allowing oil to return back to rear. chances are change over on seal number /style . might be a match it up , silicone may replace the gasket. mine it would be sheet of gasket material and small ball pien hammer to make a new one, then LIGHT film of silicone. don't remember torque on castle nut. reuse the nut = tight as can be then line up holes for large cotter pin.

3 points off on instructions:: after removing the castle nut , you have to remove flange on rear splines !! THEB remove 5 mounting bolts . I wrote that way to see if my teacher was going to correct me.

it shows how you are one hell of an excellent teacher and I remember some of what YOU taught.

actually quite easy. might be off on some numbers ; it's been a while. remove 8 flange bolts holding u-joint /driveshaft. no need to separate u-joint .enough room in slip yoke to slide driveshaft out of way. plastic pail to set driveshaft on works, under flange is a 2 1/4 ? castle nut . remove cotter pin and nut. then remove 5 mounting bolts holding cover. seal should be a remove/ install from the inside. new seal/ gasket ;; be sure to mount cover properly having return drain on bottom as pictured. pay attention to front/back of seal when installing in cover.

will be off topic I know but am not concerned. just got off the phone with a truck driver/ farmer I know well. he has a problem with a diesel farm tractor. usually there laughter/joking from him. instead Bill said the trooper was my neighbor. His two children would come over and feed my cows. I listened as a grown tough as nails farmer broke down, having all to complete the sentence. respect for Law Enforcement personal has sunk to all time low. WE MUST BAND TOGETHER and change that.

positive note to stay on topic;; the '73 looks amazing , knowing it now has passed the "loaded field trip " another plus.

P O S is too good a term for the slime ball. morning news identified the murderer. long rap sheet in other country . wife and two young children don't have a Father due to low life scum

now that's what's called a constructive conversation.

so if I get my wife to show me two pictures; would that mean 2000 words less and so quite !!

short version of all this from an old mans point of view; really doesn't make much difference if a 450 hp is brought to 1000 hp or what ever .. the key to survival is how the operator having controls handles it. slower up the hills but still gets there works. paid by the load could be a factor. 500 horse doesn't get there fast enough then get another paid by hr job.

I'm not understanding the "sounds like a jimmy" part. which brings couple questions . 1- how is the engine running temp wise ? 2- could radiator need a cleaning on fins causing fan to work harder? I would go with a horton having electric fan control switch in cab. might be able to change fan from all steel to steel/ plastic combo.