Update on my 701

[rmaynard 15,417]

Follow-up on the axle issue.

 

I mic'd the axle and the diameter is 1.000 at all non-contact areas. The groove at the seal contact point is +/- 0.985. I don't know how that would effect the seals, so I decided to disassemble one of my 5084 transmissions from a 1975 B-80. The axles in that were very good. They mic'd out to 1.000 at non-contact areas, and 0.998 to 0.9987 at the point of contact of the seals. Since the B-80 axles are different than the 701's axles (c-clips vs. pin to hold them in), I removed the entire differential from the 701 transmission, and replaced it with the differential from the B-80. Fits like a glove and solves my axle problem.

[JimD 3,345]

Follow-up on the axle issue.

 

I mic'd the axle and the diameter is 1.000 at all non-contact areas. The groove at the seal contact point is +/- 0.985. I don't know how that would effect the seals, so I decided to disassemble one of my 5084 transmissions from a 1975 B-80. The axles in that were very good. They mic'd out to 1.000 at non-contact areas, and 0.998 to 0.9987 at the point of contact of the seals. Since the B-80 axles are different than the 701's axles (c-clips vs. pin to hold them in), I removed the entire differential from the 701 transmission, and replaced it with the differential from the B-80. Fits like a glove and solves my axle problem.

Well I'm confused. You mic'd the 701 axle at .985, (.0015 undersize)  then mic'd the B80 axle at .998 (.0005 worse than the 701 or .002 undersize) to 9987. (.0007 better than the 701 or .0013 undersize) If the B80 axle is half a thou worse to 7 tenths better, how does that solve a problem you aren't sure you had to begin with?   

[rmaynard 15,417]

 

Follow-up on the axle issue.

 

I mic'd the axle and the diameter is 1.000 at all non-contact areas. The groove at the seal contact point is +/- 0.985. I don't know how that would effect the seals, so I decided to disassemble one of my 5084 transmissions from a 1975 B-80. The axles in that were very good. They mic'd out to 1.000 at non-contact areas, and 0.998 to 0.9987 at the point of contact of the seals. Since the B-80 axles are different than the 701's axles (c-clips vs. pin to hold them in), I removed the entire differential from the 701 transmission, and replaced it with the differential from the B-80. Fits like a glove and solves my axle problem.

Well I'm confused. You mic'd the 701 axle at .985, (.0015 undersize)  then mic'd the B80 axle at .998 (.0005 worse than the 701 or .002 undersize) to 9987. (.0007 better than the 701 or .0013 undersize) If the B80 axle is half a thou worse to 7 tenths better, how does that solve a problem you aren't sure you had to begin with? 

 

Jim,

Check your math. 1.000 - .985 is a groove that is ,015 deep. The B-80 axle is 1.000 - ,998 which is .002 deep. .002 is significantly shallower than .015 by .013".

[JimD 3,345]

You're right Bob, I totally misread your post. It was a long day having the test done then back to work. It looked like .9985 when I read it the first time, and I even typed it .985 and it didn't register.

[rmaynard 15,417]

No problem. Hope all went well today.

 

PM sent

[rwilson 128]

coming along good Bob

[rmaynard 15,417]

All of the steel has been sand blasted, and the stress cracks in the transmission mounting plate have been welded. At the same time I had some cracks in the seat welded. There were several extraneous holes in the frame and hood stand that needed to be welded closed as well. So everything was picked up Sunday, and as is par for the course with me, it started to rain. So I am sitting here watching the metal rust from all the humidity in the garage. Didn't have time to get a coat of epoxy primer on it. .

 

While waiting for the rain to stop, I decided to paint my tires and then mount them on the already powder-coated wheels.

 

 

Now, if the rain will stop, and I can get some serious play time in, I might be able to get this thing together before showtime.

 

 

 

 

 

[thirdjoker 11]

good work. a lot to learn here.

[rmaynard 15,417]

Finally had a day of sunshine, temperatures over 70, and 3/4 of the day off. I got all of the pieces sprayed with the first coat of primer. Now if I have another day of good weather, I will get a coat of primer/surfacer layed down, and I will feel like I am finally getting closer to top-coating this thing. During the winter when it is cold and rainy, the days drag by. But it's amazing how quickly the days tick off the calendar when it is cold and rainy in the spring when it should be warm, and you have a deadline staring you in the face. 6/21/2013 has never approached so quickly.

 

Lord willing and the creak don't rise, I will have this thing ready for the show.

 

More to follow...

 

[JC 1965 1,530]

That 701 is going to look better than it did when it was new. Looks great Bob, you sure do good work. Can't wait to see it when you get it finished.  

[rmaynard 15,417]

I hate paint

 

Started to paint the parts (all 65 of them) last week, and had considerable trouble. I am using PPG Shop-Line single-stage acrylic urethane. At first I thought that it was the weather. Since it's only been in the 50's, the first day that it reached 65 I started to paint. Since I don't have a paint booth, I paint in the driveway. Some pieces turned out good, but most appeared to have lot's of little specks. So after letting it dry overnight, I wet sanded and reshot the paint only to have the specks appear again. Now I'm thinking dirt, pollen, or some atmospheric phenomenon.  So I took the hood, fenders, and belt cover to my body shop friend. He's been painting for 30 years. He said he would paint them in his booth and I could pick them up the next day. When I got there the next day, he's as frustrated as me. Specks all over. His opinion is the PPG Shop-Line paint is BAD. It does not cover well, and something is causing tiny specks to appear, and it is not dirt.

 

Well there is not enough time for a do over, so the paint is going to have specks in it.

 

Next time I am going to use a better quality paint, and I am going to try base coat/clear coat.

 

Here's some pictures as of this morning.

 

 

 

 

 

 

 

 

 

 

 

 

 

[stevebo-(Moderator) 8,330]

Bob,

That really sucks about the paint. It almost sounds like you have spots of pil or somthing causing a "fish eye" issue. PPG has a very good rep for the quality. Anyhow it is looking really good for sure! Looking forward to seeing it at the show.

[rmaynard 15,417]

Bob,

That really sucks about the paint. It almost sounds like you have spots of pil or somthing causing a "fish eye" issue. PPG has a very good rep for the quality. Anyhow it is looking really good for sure! Looking forward to seeing it at the show.

It's not a fisheye problem. It's like nibs sticking up in random spots. I know that if I were to knock down the nibs, I could buff it, but I don't have the time right now. Maybe after the show, I will take the hood, fenders and belt covers and redo them. I am tempted to go back to PPG and see what they tell me.

[Bluffhunter 37]

I won't be able to make the show but sure hope to get see it when your finished !!!

Sure looks great so far !!!

[AMC RULES 37,125]

Mount up the seat, steering wheel, and sport the rolling chassis. 

Looks really nice Bob.  

[Fun Engineer 859]

Looking good Bob. Too bad about the paint specks

[rmaynard 15,417]

My wife says it's not as bad as I make it out to be, but you know wives, they are always trying to make you feel better.

[rmaynard 15,417]

Have had a couple of good days working on the 701. The good news is that I finally got to the point where I could run the refreshed K161. She fired right up and purred like a kitten. No smoke or unusual noises. Interesting note however, the original cam-driven fuel pump was leaking gas into the crankcase, so it was rebuilt with a kit from Then & Now (Maritime). As was noted in another thread, the holes in the diaphragm did not line up with the screws, and the one-way valves had to be modified. So as one might guess, the pump did not work. So I had a vacuum pump that I had rebuilt with a new diaphragm from buckrancher, and it worked perfectly. Thanks for the quality parts Brian.

More progress will be reported tomorrow when I can take a few pics.

[rmaynard 15,417]

Okay, so it's tomorrow already, and I promised some pictures.

 

Here is what is done to date. All painting is complete with the exception of some touch-up.

 

 

 

Yes, the ignition wire is melted, but that is the old wire. New one not installed yet.

 

The dash is a Glen Pettit reproduction, the throttle knob is from a 1946 Jeep. The cable twists to lock! The choke, push-button, ammeter, and 2-prong ignition switch & key are all original.

 

The white lettering was done with a Elmer's white paint pen (3 coats).

 

So that's it for now. I think that I might be ready in time for the show.

 

 

 

 

[Jake Kuhn 1,554]

looks great bob!    I'd be very tempted not to set the hood on the tractor for a picture. LOL

 

Jake

[AMC RULES 37,125]

Stunning!    

[dclarke 4,032]

Looks great, Bob!    Wish mine looked like that...... Keep the pics coming.

[MalMac 1,331]

I second what dclark said. Wish mine looked like that instead she is sitting there in her birthday suit. Looks like the day she came from the factory just old and gray now or I should say old and quite faded.

[Ken B 3,164]

That looks real nice Bob. Nice attention to detail, I know that the writing on the fuel line didn't wind up nice and level like that by accident. Made in U.S.A. to boot! Not being picky but did something take a bite out of the spark plug wire?

[stevebo-(Moderator) 8,330]

Spark plug wire looks like it was burned on the exhaust. Pretty common.