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8n Engine rebuild, how much time-$$

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Tiny-t

01-25-2008 17:45:22




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Lets just say I wanted to rebuild the motor on my 8n, how much time is involved? What kind of cost is in it? Trivia.... My dad used to rebuild them in the 50's, back then they would charge $75-$100 to do the whole top ( everything but pulling the pan, if they did that, it was another $50) That was probably parts and labor!!




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OKDAD

01-26-2008 21:05:28




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 Re: 8n Engine rebuild, how much time-$$ in reply to jon, 01-25-2008 17:45:22  
Well some folks put big blocks in Chevettes but they don't generally go around corners very well! :shock:



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OKDAD

01-26-2008 18:39:39




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 Re: 8n Engine rebuild, how much time-$$ in reply to 8N'r--WI, 01-25-2008 17:45:22  
Got a 502 big block in a Vette...don't need a he-me! :wink:



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Tiny-t

01-26-2008 19:42:55




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 Re: 8n Engine rebuild, how much time-$$ in reply to OKDAD, 01-26-2008 18:39:39  
Hey, a buddy of mine used to tell all the hotties he had a Vette, when he showed up for a date he was driving a "CHE-VETTE" Gotta love dem bigblocks!!



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reddogge

01-26-2008 11:40:19




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
Well, according to author Roger Welsh tractors don't have engines, they have motors. But our usage is not 100% on engine/motor either.

Cars have engines and boats have motors.

You never took a ride in an "engine boat" did you?

If you get in the shallows your partner says "Lift up the motor".

You came home with a brand new boat, "motor" and trailer.

But why isn't it "Engine Week" instead of "Motor Week"?

Why aren't guys "Engine Heads" instead of "Motor Heads"?

It's all very confusing. It's giving me gass.

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Tiny-t

01-26-2008 12:20:08




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 Re: 8n Engine rebuild, how much time-$$ in reply to reddogge, 01-26-2008 11:40:19  
Heres another, a TRAIN ENGINE. But currently aren't they diesel engines that turn electric motors?



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jon

01-26-2008 11:30:10




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
Websters say not a lot of difference:
Motor:

Any of various power units that develop energy or impart motion:

Engine:

A machine for converting any of various forms of energy into mechanical force and motion

Close enough I guess but if the King says otherwise, I'm going with his definition! :wink:



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john hunt

01-26-2008 05:13:15




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
would say not less 2,000 and maybe more depenting what has to be done to it... then shop rate book said about 9 to 13 hours for rr



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Coggonhick

01-25-2008 19:22:37




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
It's not a motor, but an engine. A Motor is eletrical and a engine is gass. I have put in $1,300 on my 8N and over a year(not every day)of labor that I enjoyed.



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Hobo,NC

01-26-2008 10:14:41




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 Re: 8n Engine rebuild, how much time-$$ in reply to Coggonhick, 01-25-2008 19:22:37  
Richard Petty #43 long live the king argues the same point,,, I agree and try my best to use the in-jun werd but some times slip

He knows the importance for the correct In-jun,,, He-Me's rule,,, the rest are just motors



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Tiny-t

01-26-2008 10:51:54




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 Re: 8n Engine rebuild, how much time-$$ in reply to Hobo,NC, 01-26-2008 10:14:41  
Got a 383 big block in my 67 coronet, wish it WAS a He-Me!!



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Sean Feeney 2

01-26-2008 08:49:28




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 Re: 8n Engine rebuild, how much time-$$ in reply to Coggonhick, 01-25-2008 19:22:37  
Why are they called motorcycles and motorcars,motorboats etc.. ?



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Ross Pugh(NC)

01-26-2008 08:46:33




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 Re: 8n Engine rebuild, how much time-$$ in reply to Coggonhick, 01-25-2008 19:22:37  
Hey, Coggonhick, while we are on corrections. The proper fuel is gasoline/ not gass and the proper spelling for that word is g-a-s. We all understood what was meant without all the corrections.



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Tiny-t

01-25-2008 19:33:41




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 Re: 8n Engine rebuild, how much time-$$ in reply to Coggonhick, 01-25-2008 19:22:37  
Thanks for the reply. Hey, is it a boat motor or engine? I know, if its a trolling motor, its electric. :)



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Ed S. (IL)

01-25-2008 19:07:25




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
$1,500 and about four weeks was my experience with a local machine shop that specialized in vintage engines (Givens Machine Shop in Princeville, IL, since retired and closed).

He did quite a bit of cleanup work while he had it apart (oil pickup tube was loose, oil pump needed a bit of rework, stuff like that).

es



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paulatclf

01-25-2008 18:39:36




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
WOW! Great posts to all. I'm gonna go back and read it again. That's what makes this forum so great.



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Dunk

01-25-2008 18:31:47




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
$350 to $500.

Time is relative, and if you don't have relatives in the machine shop business, it can take a while.

To do it right, at your convience, I would say 2 months.

I will also say that it could be COMPLETLY done in 2 days or LESS, as long as one had their ducks in a row, and knew what had to be done, and how to do it, and get it done.



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Jimmyjack

01-25-2008 21:22:55




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dunk, 01-25-2008 18:31:47  
Dream on, you cant hardly by the kit for that. Maybe thats a doofus cost.



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Tiny-t

01-25-2008 18:41:12




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dunk, 01-25-2008 18:31:47  
Live anywhere around here Dunk? I'm kinda green, but between myself , dad, and the neighbor, I would have the confidence to tackle it.I just wouldn't want to dump big bucks into it, but if I did it, I'd want it to be right. It'll be for some plowing, discin, brush hogin, and hauling some, maybe under 75 hours a year.



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Dunk

01-25-2008 18:46:15




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 18:41:12  
Polk Co. NW GA, here, whure are you?



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Tiny-t

01-25-2008 18:48:50




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dunk, 01-25-2008 18:46:15  
ELYRIA OHIO, CARLISLE TOWNSHIP. C'mon up! Got beer and hospitality!!! Right around the corner!!



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Dan

01-25-2008 18:11:34




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
Time? It could be done in a day if you had all the parts and a full machine shop at your disposal. Most take anywhere between 1 week and several months depending on: 1) when your machine shop can get to it, 2) How long it takes to get/afford your parts, and 3) how much time you have to devote to it.

On my 1939 9N, money was tight so I delayed getting parts and taking it to the machine shop and once I got it to the shop, the poor machinist's dad died and he got backed up. Since mine was a hobby, and not an emergency - I let him clear up his back orders and gave him plenty of time. From the time I split my tractor, to the time I got my engine back (today) as about 3 months. It will probably take me about another few weeks to a month (I am taking my time) to get it all back together and ready to test fire. The fastest I have rebuilt one was about 2 months from start to finish - most was waiting on the machine shop, but I am very meticulous and fairly green.

Cost is greatly dependent on your level of rebuild. Full blown rebuild kits are about $400 or so, with just rings and bearings going for around $200 or so. Machine shop work runs about $500 - $750 or so depending on what you have done and any "extra" work it needs. My engine I just got back was $630 and it included grinding the crank, surfacing the flywheel, replacing the starter ring gear, complete valve job and seat grinding, vatting, magnaflux, freeze plug installation, installing and honing the sleeves, piston pin replacement and fitting, size the big end of the piston rods, piston and rings replacement/sizing, heli-coil four head bolt holes, rebuilding the oil pump and sizing the bushing, and misc. shop supplies. He usually does much more than he charges for, and always does a great job so I always use him.

Overall, I spent about $1k for all parts and machine shop work.

HTH,
Dan

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Tiny-t

01-25-2008 18:24:41




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dan, 01-25-2008 18:11:34  
Wow! He did do ALOT of work for the $$. If I do decide to go that route, I hope I come across a fellow like that! Thanks for the input!



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old

01-25-2008 18:01:47




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
Well first off you can't rebuild one unless you pull the pan off, theres no way to remove the pistons other wise. As far as time you can have an N series engine opened up in about 2-3 hours and then back in in about the same time, but the machine shop work is not that fast. cost wise your looking at around $500 for a kit and then another $200-300 machine shop work so your total can be from around $700-1500 depending on how bad off it is, but figure it this way a total rebuild done as it should be done will last you 30 plus years if you take care of it

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Tiny-t

01-25-2008 18:08:31




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 Re: 8n Engine rebuild, how much time-$$ in reply to old, 01-25-2008 18:01:47  
Yeah, i thought the same bout the pistons, have to see what pops meant. So, probably looking under 1000? I believe I could do most of the work myself but the machine shop stuff. What all would they do?



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old

01-25-2008 18:11:40




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 18:08:31  
Machine shop should check the crank as far as spec, hot dip the block and magnaflex it for cracks. Do a valve job and install sleeves or bore it.



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Tiny-t

01-25-2008 18:18:37




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 Re: 8n Engine rebuild, how much time-$$ in reply to old, 01-25-2008 18:11:40  
The block has the star after the serial no. does that mean they would bore and put the thicker sleeves in?



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old

01-25-2008 20:31:12




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 18:18:37  
Could go either way depending on how good or bad it is



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Brian Bell

01-25-2008 18:01:45




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
Probably 350 or so in parts (if you don't need a head, crank, or rods) and up to 300 in labor at machine shop depending on what you need done. If you have all sleeves installed at machine shop, line hone the crank journals, turning the crank, etc. A lot depends on what you are willing to do yourself and what you sub out.



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Dwight Billingsley

01-25-2008 17:59:59




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 Re: 8n Engine rebuild, how much time-$$ in reply to Tiny-t, 01-25-2008 17:45:22  
I did some checking a while back on having my 2N engine completely gone thru. An average cost for everything but taking out and reinstalling was around $2000. Kits are available as are technical "how to " manuals. Doing it yourself would be under $1000. One thing to remember is you get what you pay for. If the tractor is one you plan on keeping , spend a few extra $ and do it right.



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Jim Spencer

01-25-2008 19:07:45




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dwight Billingsley, 01-25-2008 17:59:59  
I have rebuilt a 9N and an 8N engine.
Not much to it if you have a machinist background and are familiar with precision measuring tools or have a friend who is a toolmaker or machinist. Easy to remove the sleeves and replace. You may need a reground crank and bearings to fit. The hardest part is getting the self confidence and believing you can do it. I had a lot of enjoyment from rebuilding these engines but I also am familiar with Micrometers and using plasti-gage.

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Dwight Billingsley

01-25-2008 20:12:26




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 Re: 8n Engine rebuild, how much time-$$ in reply to Jim Spencer, 01-25-2008 19:07:45  
Just as Jim said, it takes mechanical knowledge and common sense. Understanding clearances, tolerances, torque specs, etc. all have to be understood and adhered to. A good manual will give you step by step instructions for a quality rebuild as long as you don't cut corners. The little things that you may take for granted will always come back and cause problems for you.

Proper tools.
Quality parts.
Understanding and adhereing to specs.
Keep everything surgical clean.

As for time. Be patient. Read, understand and most important...follow what you read to the "T" and it'll be hard to go wrong.

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Tiny-t

01-26-2008 05:17:38




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 Re: 8n Engine rebuild, how much time-$$ in reply to Dwight Billingsley, 01-25-2008 20:12:26  
Thanks dwight.



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Tiny-t

01-25-2008 19:29:41




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 Re: 8n Engine rebuild, how much time-$$ in reply to Jim Spencer, 01-25-2008 19:07:45  
I got some mech. knowledge, dad used to work for ford from the 50's- 70's, and the neighbor is a machinist. May just "go for it"



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