Trials and Tribulations |
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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All painted up. I bought 20 cans of paint when I went to the store, when there's a good week of weather it's getting a new paint scheme. Power steering gear rebuild kit and spanner wrench arrived.
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CJ3B
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Flatfender Ben
Member Joined: 13 July 2014 Location: Nyssa OR Status: Offline Points: 2657 |
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Flaptastic!!
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1946 cj2a desert dog
1946 cj2a bulldog 1948 cj2a blue jeep 1953 cj3b yard dog 1955 willys wagon 1955 willys pickup 1956 willys pickup boomer 1960 fc 170 1968 jeepster commando 1990 Grand wagoneer |
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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Put the 3b to work this afternoon moving a truck. Thanks for the compliments. It's just a clone of another Jeep.
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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Current paint scheme.
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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I got around to replacing the seals on the input shaft. Very easy to do. Went for a drive and didn't see a leak when I got back so that's good.
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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I'd been having some small ignition and engine issues. I bought another set of plug wires, electronic distributor, coil and installed a new spark plug since one of the new ones already went out. Now that it was running better I decided to find out why it wouldn't rev past 3k rpm. My first thought was the oil bath filter and after disconnecting the air tube from it the engine started running better and revs past 3k rpm.
I have some tidying up to do in the engine bay. |
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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Yesterday I found the time to set the head up on the resurfacer and started mowing it down. Took .125 off it. If my math is right the engine (stock) should have around an 8:1 CR with this cylinder head.
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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New tires for the Jackman wheels. I'll have to fix the valve stem holes but they're in good shape besides that. 285/75/16
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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Donaldson paper filter unit fit like a glove and I used a piece of 2-1.5" plumbing reducer to fit the hoses together.
While on my test drive I noticed some random puffs of smoke every few seconds. When I finally got back and popped the hood I noticed this. I checked the oil pressure gauge hose and it was good. Didn't see it coming from the oil line. Also noticed the engine started to run on 3 cylinders off and on. You can see the oil coming from where I poorly welded the header. She is just tired and needs some attention I guess. Probably worn out and/or broken ring(s). And now with Jackmans... |
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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I bought a couple of F134's. The one pictured is a military engine from an M38A1. Hopefully, it'll be a good core for the build.
I tried to knock this piston out of the top of the block and ended up putting a moon roof in it. I then decided to make a tool to drive the pistons out from the bottom of the block. Piece of pipe and steel plate welded together. Voila! Piston driver. Got the valvetrain removed. An air hammer works great at removing valves rusted in the guides. Especially when they're on the seat. All pipe plugs and core plugs removed. Here is the block in the oven. After ~25 minutes. And finally, the block goes into an airless shot blaster. Under the dust is clean metal. I knew there was a crack right by the block drain but that's an easy fix. Time consuming repair but easy. I'll blow it off and proceed to crack detection before going any further with the block. I talked to Clifford and they talked to the guy who does their cam grinds and he said just about whatever I wanted could be done. With stock parts, I don't want to pull through 6k rpm. The guy on the phone was concerned with the engine flying apart but I tried to assure him it'd be fine and I have two other engines for testing purposes. This is where a flow bench would come in handy. I don't know what the head is capable of flowing so too much lift could hurt performance. Not that I'm looking for more than .400 lift anyhow... |
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CJ3B
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otto
Member Joined: 26 Feb. 2012 Location: Orygun Status: Offline Points: 2265 |
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I'm curious about the block prep process you posted, it looks like the oven has a rotisserie like those "set it and forget it" chicken cookers. Does this process get the water jackets and internal passages clean? I've only seen engine parts cleaned by immersing in a caustic solution.
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47 CJ2A w/fuel injected boat engine
48 CJ2A 64 Ford Econoline Travelwagon If you can't get there in a Jeep, get a motorcycle! |
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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It doesn't clean the water passages. Like you said if you want to clean the water jackets you'd have to immerse the block in solution to remove the scale build up. Personally I've never seen anyone take the time to descale unless there was a large amount of build up or there were chunks. The oven is like a rotisserie. It burns paint, oil, carbon, etc. Turns it to ash and that's when the part goes into the shot peen. The shot peen has two large impellers that throw bb's (think birdshot) at the part to clean it. It's like a sandblaster but no air is needed. It also turns like a rotisserie but it changes direction.
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CJ3B
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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I magnafluxed the block and didn't find any other cracks.
Anyhow, I cut the guides down for a positive valve seal. I used a .530 cutter. |
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CJ3B
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42rocker
Member Joined: 28 Oct. 2020 Location: Tampa area, Fla Status: Offline Points: 130 |
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Wow, what a lot of work. Hope that you are enjoying every bit of it.
Good Luck. Stay Safe Later 42rocker
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Owner of "The Swiss Miss"
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WeeWilly
Member Sponsor Member x 2 Joined: 07 May 2009 Location: Clayton IN Status: Offline Points: 3423 |
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To be on the safe side you could pressure test your block. I had one with an internal leak that the machine shop didn't find. After changing the head gasket several times including a copper gasket and still finding coolant in the oil I tore the motor down and pressure tested it myself with air and found it leaking in the distributor cavity. I blocked off the top with a piece of rubber using the head for a plate and made a plate to cover the water pump hole with a rubber gasket. Plugged one of the manifold holes with a pressure gauge and a schrader valve in the pitcock hole to pressureize it. Found the problem fixed it, tested it again now I am puttting it back together. Keep up the good work Jim |
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47 CJ2A (Ranch Hand) 48 CJ2A, 48 Willys truck, T3C 3782, M274 (Military Mule)
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73 cj5
Member Joined: 07 Feb. 2014 Location: Mississippi Status: Offline Points: 203 |
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Thanks guys. Not much progress lately but still getting good use out of the 3b.
I pulled this truck up the driveway in the rain last night. 4x4 does indeed work and my driveshaft held up. |
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CJ3B
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