Freightrain

Ok, anyone have the part number for the crank hub for a 673! Not the 300, but a END673. I have to use the hub from my 673 motor like I did for the 237 to line up the belts. I noticed the ID is kinda scored and actually worn on one side. I would like to replace it if possible. The one for the 300 is longer by about 3/4" and has a pilot sticking out for the balancer to register. Unlike the 673 which has a small hub that registers in the counter bore shown. This all shortens the length for the balancer to clear the front cross member.

Thank you for the offer.

Pick them up Tues. Will post PT number.

No. Only been to Pittsburgh and Beaver Springs.

Once the car is running,it isn't that bad. $60 to enter, $40 in race fuel a day. Diesel fuel to get there($100?). Building it was where it hurts. $20k motor, $10k transmission, etc. Luckily that stuff last a longggggg time. Oh, ya forgot to mention, Mack valve stem seals $14 EACH!!! Times 12. Wth.

"dark grey". Looks like a std grey primer color. Not dark at all. I knew it was likely not right. Only bought one can. Mack is definitely darker. I am leaning towards grey instead of maxidyne gold. The gold I bought for the transmission last year was horrible. 300 were gold, 300+ were grey.

$5 grind job and some time in the solvent tank washing them up. That is it. Ya, I will likely be well in or past that neighborhood when this is all in the truck and driving. All in a $2500 truck.....🤷

Pics from the shop today. Couldn't do anything with them so will update next week.

Ya, Took a couple weeks and a lot of soaking and pounding. Mack dealer didn't have the right stem seals so I will get them next week. I also should have the right rear seal coming also. Darn near ready to close this up for good next week!

Took the heads to the shop this afternoon and washed them up. Knocked the valves out and got them a quick clean up grind. Intakes were still nice, exhausts had about a .010 wear ring in them. They look new now, picking up new valve stem seals tomorrow and will be assembling them Saturday. Dropped injectors off at diesel shop and should see them in a couple weeks. More baby steps.

Something was wrong and yes, glad I was smart enough to figure it out now. I was going to run it before putting in the truck but it might have lasted 20 minutes more than that?? 😆

That's two of us Dave. Yup, long standing girlfriend is behind all my hobbies and offers to buy stuff all the time. I don't let her very often but sometimes she'll insist. She enjoys riding in all the hot rods. She likes the attention, smiles, thumbs up, waves, pictures. It's like a constant parade whenever we go somewhere. Oh, got the last injector out tonight. Jeezus what a PITA this has been. Now to take them and have them gone over....if I haven't destroyed them too much.

I could retire early on the money I have burned up between the race car, the black car and now the Mack in the last 6-8 yrs. Wow...I don't like to thing about it. But, it's my passion so I just do it.

😆. I got my money back for the wrong seal, so can't complain much. I'll have an extra wear ring but whatever. I've blown so much money on this project I don't want to know ....

I am up to FIVE injectors out. One more to fight with tonight. Then I can get the heads down to the machine shop for a clean up and going over. The injectors will go to local shop for checking out. I started to file the bodies up to remove all the damage from the air hammer. They look as bad as I hit them. The rear seal I installed was wrong. Spent some time at dealership yesterday and I think it was the owner that came over and got deep into what was wrong and I think I should be good to go. Seems I installed a stock seal and not a seal for a wear ring. Thus the crank was really, really hard to turn. I pulled the seal last night and sudden it spins easy again. Ugh. They did take back the other wrong seal that I left in the packaging, $167 back in my pocket! Kevin gave me the truck serial number for the power steering box so I can investigate getting a reman and get it installed. I will use his as a core. Slowly making headway.

Ya, pretty sure my old 673 had flywheel studs, no piston coolers. Mine didn't have oil cooler either.

Kevin All is getting me a box for me while the motor is out.

Bought it in 1992, all original 289ci/spd OD. Turned into racecar in1995 and have run it ever since. Still a stick shift. 427 FE, 5 spd. Has gone 10.15@130 mph. This picture is the track I started at, Magnolia dragway. The name is a take off from a fellow years ago that ran an original 1964 R code galaxie called "Galactic Warrior". Liberty Equalizer 5 spd, same transmission they run in Pro stock today. The badasses you can buy. It's like jewelry on the inside!

The single disc behind my 237 pulls 30k lbs easily. I have the pump, tank and lines for the power steering.

Friday night in the garage. The pan is on. Geez that was a PITA, sorta. Lost a front big bolt, got all the rest in and the two fronts would not start. Had to bang the pan around and they finally started. Had to jerry rig the one bolt until I buy another but at least it is torqued down to set the RTV. Went ahead and bolted flywheel on. I wire wheeled the lugs and they are pretty straight yet so I won't be screwing with them. Just will make sure new clutch plate floats good. Did get the compressor bolted on last week. And a new coolant line made. I will be cleaning up the injection pump and get it bolted on next. I can now clean up the corners of the block and wash it up for paint. Baby steps. I know now that the new rear seal is in, the crank is WAY harder to spin. Wow, that tightened things up. No, the three injectors have not come out yet.

I would follow Brockys advice. Get it running and then see how they drive. If you have never driven trucks like this it won't be a quick thing to just hop in a drive. 26 yrs ago when I bought mine it took a summer of driving to get proficient and comfortable.

The "20" is not really the number of useable gears. Lo-lo can only be used in first gear,so 16 real gears in a single over box down to 13 in a double over box.

Most quad boxes are really just a Triplex with a deep under which is only good in 1st gear. So you don't really shift it that many times. A double OD quad has even less gears as you don't split 5th at all. Just a heads up if you aren't aware of how they shift.

I ordered generic felts from a supplier and once I pressed them into the channel they pinched tight and glass is tough to move. I kinda rubbed some fuzz off with a razor blade and used some Vaseline on them to make it easier. I would have been in trouble if I had actually gotten power windows for it. They wouldn't have been able to move. I hung the new door shells on my truck in my tiny stall. Ya, it was a PITA. Did wait to install glass, so it was "easier". I hung them, aligned them, then drilled pilot hole in hinge so I could take them off and get them painted. Wash, rinse, repeat.

My local shop did my core for $1200. Bit smaller then your large version.