4-71 overhaul complete, ready to slide back in.
 

4-71 overhaul complete, ready to slide back in.

Started by lostagain, May 08, 2009, 07:36:31 AM

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lostagain

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This 2 days ago. I have been struggling to post these pictures since... with thoughts of trowing the computer out the window...

Finally asked my teenage son and he had it done in less than a minute!!

Anyway, the engine is in now. I have been reconnecting a lot of hoses and wires.  This am I will put up the new rad. I'm hoping to be running by next week. Lots to do yet. Not the least is the charge air plumbing for my new (old) aftercooler.

Got to go,

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

Dallas


lostagain

JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

lostagain

JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

lostagain

Yeah! finally! one more:



I was trying to do 2 pictures at once. One at a time works.

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

Dallas

Looks good JC, except...

Did you forget to put the pistons back in that are over in the right hand corner of the first picture? you may get a bit more compression if the engine has pistons in it.  ;)

Len Silva

Wow, a John Deere engine and a Caterpillar transmission.  That's cool :)

Hand Made Gifts

Ignorance is only bliss to the ignorant.

poppi

   Absolutely great.

I was once told a clean desk is a sign of a sick mind.............Your shop just scares the heck out of me

 ? Did that come with rollers on the engine frame from the factory?

  I really like the roller idea.

 Thanks for sharing

   Skip
Snow disappeared......Now where did I put that bus?

lostagain

The pistons: well, you have to have some parts leftover! LOL. I'm still thinking of some idea maybe for a decorative use for them for inside the bus. A lamp or cup holder or something... I replaced them with the 2 piece crosshead pistons which come with different rods.

The color: I went to the DD dealer in Calgary (Waterous), asked for DD green, and that's what I came home with. I thought what the heck, and used it anyway.

I built the dolly myself last fall. The rails match the ones in the bus. The casters were really handy for pulling the whole thing away from the bus. I hope I never have to use it again, but I am saving it just in case. Only the future will tell if my rebuilt is any good...

This morning, I reinstalled the exhaust and wrapped it. The turbo too, because it is so close to the bedroom floor.

This afternoon, the new rad goes up. That involves a lot of details like cutting rubber bushings for the mounts, sealing around it, possibly making a new fan shroud, etc.

Then I have to cut the side behind the left rear wheel where I mounted the aftercooler. I have to find a grill, and I think I'll make some loovers to get some ram air to the cooler.

Then the charge air  piping.

JC



                                               





JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

fraser8

JC. It will be ready for us to look at next week end at the rally I hope, or would you like some help when I get there?? Looks great, nice job..
Fraser Field
Deroche, BC, Canada
Where the milk cows out number the people, but they can't vote
1972 Prevost, Detroit 8-71/740 Allison automatic, Jakes
Hobbies: restoring classic cars, www.oldambulance.com, arranging old car tours: www.coasters2010.com, www.canadiancoasters.ca
Retired Paramedic

Paso One

Looks Good JC  The frame you built to support the motor is great also. Can't believe Waterous gave you that paint.

Maybe it won't leak oil so that will be a good thing.
68 5303 Fishbowl 40'x102" 6V92 V730 PS, Air shift  4:10 rear axle. ( all added )
1973 MC-5B 8V71 4 speed manual
1970 MC-5A  8V71 4 speed manual
1988 MCI 102 A3 8V92T  4 speed manual (mechanical)
1996 MCI 102 D3 C10  Cat engine 7 speed manual  (destined to be a tiny home )

Dallas

Looks almost like Oliver green instead of DD green. But, heyy, they were great engines too!

HB of CJ

Even I got your pics to load.  Thank you.  I like the green paint.   No darn lousy oily oil would even dream of leaking out of your neat hopped up Detroit.

What does the mill have?  Give us all the juicy details like timing, injectors, turbo, charge cooler...etc.  Have you dynoed the mill?  Wha'd she put out?  HB of CJ

Airbag


lostagain

I put the turbo on it 2 years ago. At that time I had the blower rebuilt with the better oil seals to take the extra boost. It made a great difference in power: gave me one gear down going uphill with my 5 speed Spicer. Also no more smoke.

This winter I did a complete overhaul to turbo specs. I had the head rebuilt with new valves, new guides, new inj. tubes, N 75 injectors. The previous owner put the Jakes on.

I did the block with the crosshead pistons, new liners, new rods, new rod bearings, crank bearings, front and back oil seals, standard timing.

I also had the trans. out for oil seals. And the diff. as well for a pumpkin gasket and a pinion seal.

Had the rad recored.

I went to a junk yard and got a dry air filter housing to replace the oil bath. And a air to air intercooler.

I was getting 10 to 12 psi of boost with the turbo by itself. We'll see how much I get with the new setup.

There is quite a bit of work yet to get it running. I  might have to put in a few night shifts if I want it done by next weekend.

We'll see how she runs then. I'll let you know.

JC





JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)