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  #241  
Old 27-05-18, 10:53
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi David,

Thanks for that. Yes, the radio stuff has been an education, but fun. Not so complicated that one feels they have the confidence to have a go, but damn satisfying when the thing works like it should!
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Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #242  
Old 11-06-18, 23:19
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi all,

Iím back on the M8 again after returning from France, albeit briefly, as I have an operation on my hand today so will be out of action for a few weeks.

I picked up a few things I needed while in France: NOS throttle master cylinder, return springs for the clutch and brake, NOS turret support bearing and an A62 dummy antenna. I saw a few M8 parts at the various swap meets there, but not a heck of a lot.

I had another tinker with the interphone system for the driver and co-driver. It turns out that the microphone I was using on the co-driver side was not working. I tested it again with a NOS T-30 microphone and it works fine, so that is good news.

I noticed that the NOS T-30 microphones straight out of the box were really sensitive and clear. They were much better than the T-17 microphones I had tried. I have a few older T-30 microphones that donít appear to work though. Has anyone tried to repair these? I gather they work on vibrations from the throat. I prised one apart but it doesnít look like there is a lot that is serviceable, short of replacing the microphone element.

I have the front axle under the hull now and springs fitted. When my hand comes right I will bolt the axle to the front springs. I had quite a battle lining up the mounting holes on the front spring mount on the co-driver side. It is a chunky piece of steel but must have a very small twist on it, and I had to open up a couple of the mounting holes by a mm.
Attached Thumbnails
20180609_133255.jpg   20180611_191427.jpg   20180611_191034.jpg   20180611_143647.jpg   20180611_170229.jpg  

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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #243  
Old 11-06-18, 23:20
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

More photos.
Attached Thumbnails
20180611_191002.jpg   20180611_123621.jpg  
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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #244  
Old 20-06-18, 09:08
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi all,

Iíve decided to get my intermediate and rear axles reassembled by a local truck mechanic. I could do most of the work myself but with the operation I had on my hand last week, I canít lift anything heavy for 6-8 weeks, and that will really slow my progress down. I figure I might as well get these guys to do the heavy work in the meantime which will keep the project moving.

The rear axle needs blasting and painting and reassembly with a new pinion shaft oil seal and new gaskets.

The intermediate axle also needs blasting and painting, but it also needs the differential carrier bearings replaced (which I have), a light bead-blast of the ring gear and diff housing and reassembly with a new pinion shaft oil seal and new gaskets.

I am in the process of gathering up all the drawings and specs for the mechanic and was looking at the procedure involved in setting up the preload on the pinion shaft, as per the attachment. I guess the truck mechanic will have some sort of tool for setting that preload up.

What about any other form of setup between the drive pinion and the ring gear? What thickness gasket paper should we be using? What effect does the gasket thickness have on the backlash?

Another question Ė one of the axle housings has a good torque rod end still on it, as per the photo. I havenít taken it off at this point. My question is, can the adjustable torque rods be fitted with the axles in place and that torque rod end still on the housing? I am not sure whether both ends of the adjustable torque rods have to be on and the complete torque rod fitted in one piece.

I am trying to get my head around that aspect of the reassembly of the intermediate and rear axles. Itís no problem to remove the torque rod end, but I will have to cut it off and I donít want to unnecessarily remove it if it can be reused.

Iím still after a U bolt for the rear springs if anyone has one.
Attached Thumbnails
P1070089.JPG   Pinion gear preload.JPG   axle housing.JPG   Diff assembly.JPG   P1070042.JPG  

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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #245  
Old 20-06-18, 09:09
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

More photos.
Attached Thumbnails
P1070044.JPG   20180620_131907.jpg   Torque rod parts.jpg   P1070112.JPG  
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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #246  
Old 20-06-18, 11:06
David Herbert David Herbert is offline
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Join Date: Mar 2010
Location: Ayrshire, Scotland - previously Suffolk
Posts: 194
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There is no reason that the torque rod end must be removed from the axle as long as the rubber is still servicable and the thread is clean and undamaged. You could assemble the rest of the torque rod onto that end before offering up the axle with torque rod to the vehicle. It might even make manipulating the axle a little easier as it will give you a bit of a handle. Do grease the threads before assembly or they will never come apart again !

Hope your hand mends quickly, you will be amazed at how much strength you loose by not using it and it is very easy to strain muscles and tendons when you do start to do propper work again so you need to go easy for the first month that you think it is fit again. I know from when I chopped the end off a finger a long time ago. They stuck it back on but I was a long time before I had all my strength back and I felt it in my whole upper body as I had not been able to do anything heavy at all. I was very lucky because although it is a slightly odd shape it is fully functional and even has most of its feeling.

David
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  #247  
Old 20-06-18, 12:53
Andrew Rowe Andrew Rowe is offline
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Join Date: Aug 2012
Location: Manawatu , New Zealand
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Default Preload

Hi Big D, the preload on the side carrier bearings is achieved by the thickness of the gaskets, It is easier to set this up without the pinion installed. We laser cut 2 or 3 thicknesses of gasket paper for this process when doing Bren Carrier diffs. The local engraving shop could achieve this for us. Cheers ANDREW.
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  #248  
Old 20-06-18, 21:53
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi David

Thanks for the reply. Yes, I wasn't sure if the torque rod would fit in the space available without having the ends already screwed onto it. I guess I will find out.

I had Carpal Tunnel surgery on the hand and I didn't think it was a big deal but the surgeon said that it can take 12 weeks or more to come right and not to push it. Your experience with hand surgery confirms for me that I will need to take it easy.
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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car

Last edited by Big D; 20-06-18 at 22:45.
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  #249  
Old 20-06-18, 21:56
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi Andrew

Thanks for your reply. I figured the gasket thickness must have come into it and I wondered why it wasn't mentioned in the manual.

The laser cutting of the gaskets is a good idea, thanks. I will get a pattern drawn and get that off to someone who can cut a few out before I get it all off to the mechanic. That might save a few dollars.
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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #250  
Old 21-06-18, 07:17
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Lynn Eades Lynn Eades is offline
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Join Date: May 2003
Location: Tauranga, New Zealand
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It is probably not mentioned in the manual, because there will only be one thickness of gasket supplied. The Ford axles have a ).010" gasket.
If every thing is in order, then straight forward assembly of new side bearing cups into the two housings with new cones assembled to the carrier and the whole lot bolted together is "supposed" to give you the correct side bearing preload. If you follow through on the parts info. I think you will find a single gasket is supplied , one part number, no other options, and as with Ford, a little hard to find the info on how thick it is.
If you follow Andrews method it is a good double check.
You can "jerry rig" a set up to do your pinion preload. Give me a call if you want to, and I'll talk you through it.
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  #251  
Old 22-06-18, 00:11
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi Lynn

Thanks for your reply. I can recall you and I talking about gaskets when you and I were looking at the axles when you were down here. I will check the manual out a bit further to see if it mentions gasket thickness. I think I read about your preload check method and I may yet give you a call!
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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #252  
Old 13-07-18, 07:32
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Hi all,

Just a quick update to let you know that I am still alive and that I have started work on the M8 again after my hand surgery.

With the help of a local mechanic, we got the problem flange off the pinion shaft on one of the axles. As you can see, the pinion shaft needs a clean-up and the bearing cups and cones need replacing. The pinion shaft on the remaining axle looks good so I have left that in place, although it does need a new oil seal in the pinion shaft cover.

The axles are at the sandblasters now for priming and painting and then I will drop them off to the truck mechanic and get him to reassemble them. I have new bearing cups and cones for the differential assembly for both axles, new inner axle seals and new bearing cups and cones for the pinion shaft for that one axle, so will get them to reassemble everything with the new parts, and set up the preload and sideload etc.

I did some more work on the front axle and got that into place on the springs. It seemed to take a hell of a long time as my right hand is still not right after surgery. I had to battle away with jacks and cranes to get the axle in place and located on the pin on the springs. I struggle to hold a beer bottle tight enough in my right hand to unscrew the cap, which is a worry. I guess it will come right given some time. Anyway, the front axle is now in place and located on the front springs. The nuts and bolts need some touch up paint now to tidy everything up now that everything is locked down.

Iíve attached some pictures of the 37mm breech block I picked up (thanks DG). It should clean up nicely.

Does anyone have any pictures of the taillight wiring connections? I note there is one plug off the wiring harness in the rear of the hull which goes into the conduit fixed into the hull for the taillights. From what can see, this then splits into two connectors within the taillight mount for the taillight bulbs but Iím not sure what sort of connectors should be here to join the cables up. The manuals are unclear on this. Any help would be appreciated.

That is all.ÖÖ
Attached Thumbnails
20180710_115303.jpg   20180710_115315.jpg   20180713_172119.jpg   20180712_114801.jpg   20180712_114807.jpg  

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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #253  
Old 13-07-18, 07:33
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

More photos.
Attached Thumbnails
20180710_115339.jpg   20180705_165841.jpg   20180713_141550.jpg   20180713_141702.jpg   20180713_141740.jpg  

__________________
Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #254  
Old 17-07-18, 01:05
James P James P is offline
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Join Date: Mar 2016
Location: Canada
Posts: 117
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Great new pics, it is always a treat to see the work invested in a restoration and this one is right up there for doing it right and accurate.
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  #255  
Old 13-08-18, 10:21
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

Thanks James P.

Just a quick update this time. I have been tied up with a few other projects so I havenít had a chance to do a lot on the M8. Iíve still progressed a few things though and the search and finding of parts I need goes on.

I dropped the freshly painted axles at the truck service centre along with the diffs, bearings and seals etc. I had completely disassembled one of the differentials and once I had cleaned everything up, it all looked not too bad. The crown wheel has a bit of pitting on it but it will be fine for this old girl.

I did note that the differential carrier housing had a very fine crack in the casting. I donít think it would have happened during the disassembly and I suspect it has been there for a number of years. I will get the lads at Action Engineering to repair the crack before we reassemble that diff.

In the meantime, I picked up a few bits and pieces: M1A1 A/T mine, TL-122A flashlights, gear shift rod bronze bearing, DM-34D dynamotor, tow shackle, and D40733 Cradle and Pintle assembly for the gun ring. The pintle for this cradle though, should have the long pin so I am now on the lookout for that.
Attached Thumbnails
20180720_084359.jpg   20180718_122224.jpg   20180718_122244.jpg   20180718_122303.jpg   20180718_123618.jpg  

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Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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  #256  
Old 13-08-18, 10:22
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 453
Default M8 restoration

More photos.
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20180718_123421.jpg   20180718_123437.jpg   20180813_163420.jpg   20180807_111610.jpg   20180719_120656 - Copy.jpg  

__________________
Cheers,

Darryl Lennane

1943 Willys MB
1941 Willys MBT Trailer
1941 Australian LP2A Machine Gun Carrier
1943 White M3A1AOP Scout Car
1944 Ford M8 Armoured Car
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