mechohaulic

situation with a multi machine is some have too much trying to be done with one unit. yrs back I was given an airco ??? welder which was wire feed;( gas set up) and also a stick machine. looked a little dusty when i got it , with a little clean up and some blue miller paint it looked and worked excellent. and this is still on topic ==LOL

steel covers : old R model etc era ; not alum new style .had solenoid "hump" in valve covers . 3 humps per cover = one for each solenoid. Dang::am I really that old; LOL. i'm not that old - technology is changing toooo fast. sounds better.

your not alone. think that's why the shutterstats are stamped ;; inlet: who pays (paid) attention .

front shutters almost always worked off engine temp' that was the purpose of the shutterstat mounted in coolant system. eng temp opened and closed the air to the front shutters. took air to close the shutters. in the event a problem arose there was a brass shut off valve mounted on fire wall #4 aeroquipt line going to shutterstat which could be closed taking air away from front shutters keeping them open.

give it time; a lot of excellent knowledge from the Fire dept guys on here. good luck .

the "hump"covers go back to early dynatard days; don't thing they were even 4 valve. EACH exhaust rocker had a solenoid if I can remember. 7/8= 15/16 thin lock nut, a tool basically a flat scrapper was used to adjust valve . another very important step I forgot. the early dynatards valves HAD to be adjusted in proper order. on many non-dyna engines if say #1 cyl was at TDC a random number of cyl could be adjusted, a complete valve adjust could be done in 2 spins. with the EARLY dynas the front crank damper had the timing marks which had to be followed. a cyl adjusted would have an exhaust cyl that appeared "way out "of adjust when eng rotated. cam lobes . challenging times after many new dyna engines came in for rocker push rod up dates and no one was there to explain the double lobe cam. adjust a cyl rotate for next cyl and previous cyl exhaust way out of adjust. didn't know it was made that way. rotate back to the cyl adjustment was perfect. in most responses i post it's based on the very early days .

It seemed unique to me also; that's reason for chancing going on property to get picture and vin. most hazardous part was having my wife in the car . LOL

for the frame drilling, I had a number of 2x4's 0r other that fit perfect on the rails to take the kick from the drill. once i was out and the boss had two older mechs attempt a fifth wheel mount. one guy from Trinadad little shorty; not paying attention when the drill caught he was standing on the rails at the time. they said it threw him to the other bay. he never did another wheel; darn good mech though. told me how to "hone " the sleeves of the war ships, they lowered him into the cyl with a crane and some emery.

the main down side to the alum brightener on tanks is it stays between the strap/ rubber and has a tendency to speed up the oxidation process. we all know how a beautiful tank is ruined under the holding straps. no one is going to loosen the straps to polish under neath. nice pictures and truck

the lawyers writing the paper work have that figured out. wonder if there is a statue of limitation type clause? has to be at least 40yrs since last brockway : yes/no . by chance did you look at the DMM pictures? recognize it ?? sitting in southbury

forgot ;; the valve covers themselves should be different also. "pregnant " hump where exhaust valve is noticeable from outside

unlike a jacobs which is an add on with little changing a dynatard is totally different ; it is a built in. meaning the rockers are different , exhaust rockers have solenoid assy built in ;not just changing adjuster . when adjusting a dyna make sure you push down on the rocker to empty all oil (other way tighten adjust to compress oil out, then back off and process with adjustment) cam has to be right one

that 3/4 drill laying on the floor brings back some memories. think I burned out waterbury Mack's at least twice. 50-60 fifth wheels mounted . all having 5/8 or 3/4 bolts depending on configuration.

I DIDN'T DO IT THIS TIME 😁

engine brakes act on same principle;; hold the exhaust valves open at compression stroke. actual hold back is from cyl not creating a power stroke. the noise is from the compression/ power in cyl going out the exhaust. a jacobs engine brake is much better then early dynatards. the jacobs is an add on - new exhaust adjusting screws and spacer. the dynatard is a built in from cam to pushrods and different rocker assy. first dynatard were junk. bent the exhaust push rods : many were changed over to the updated solid rods. oil pressure to me was more critical with the dynatards; that little rocker cyl did all the work. jacobs had it's down falls but fewer.

ZEP always HAD good products. make sure you follow all the safety precautions when using the zep a lume. don't cut corners and do like someone I know (me ) thinking " i don't need long rubber chemical gloves" . took a long time for my finger nails to grow back . one of the most painful episodes of my life.

all the alum bright I ever came in contact with was more of an alum cleaner. actually cleaned well but made the alum dull. then it was the polish and buffing wheels .

based on the pictures and NOT defending anyone ; Mack might do better changing the adhesive they use to install the seal . seals don't look ripped apart as much as the door jams only show spots of adhesive suppose to keep them on. different glue and a little more of it

ROCKY ROCKWELL ;;; you got the best of the best . He's my hero. we worked Mack together. then he did O&G . can't keep a good man down ;LOL he needs to be on his own . unfortunate situation with His wife .

when you have those "down attitude days" just pull up the post from Matt on B73 restoration _start from the beginning reading and checking the pictures if they don't get you motivated nothing can, just sayin . keep telling yourself """ i can do that"

when baskin robbins built the new freezer in southbury the welder they used (paul Yuotts) with stick rods welded all the refrigeration pipes 10-12in dia so close to the walls he used a mirror and bent the rods around to the back side of pipes. this was a huge freezer. not one leak. he was the one (in his spare time ) teaching me the T I G machine baskin Maintenace shop had.

your all set then . now it's not the physical pressure but the mental pressure;; making the decision as to which way to continue on with the build. take time building the first one with the option of building the second.

never the shut up . would rather drive down to NC (visit my sister) then stop by your shop and assist in engine build. think this has to go to the chat box before I'm (we) are in trouble.

yours in frame blue paint from topic of engine painting. spent alot of time studying the differences in " new engines

don't think i have a lot more to learn but there is a lot I hope to learn: 😁! especially about those under the exhaust injectors your picture shows. How did I do ;; brought the topic back to injectors :::LOL