#841
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So I drained down the radiator enough to remove the thermostat housing. The thermostat is a 160 deg one. It is operating fine and there was nothing causing an blockages. I did drill a tiny hole in though. Even having a hole is mentioned in the MB-C2 manual. I checked my original bellows style thermostat and it had the small hole. When I was reinstalling this I noticed that the fan pulley seemed to spin easily. Bingo.....the fan belt was very loose. I tightened it up to the proper 1/2” of play as mentioned in the manual. What a difference in how it sounded as you could really hear the fan pulling the air through the radiator now. I suspect that was my problem at the higher RPM the fan was slipping and not spinning the water pump as well as needed.
As for the speedometer, I pulled it out and the cable was fine. I think something either seized up or let go inside the speedometer. I put on the NOS spare I had. I also pulled out my fuel gauge as it didn’t seem to be working. I tried out the spare and it worked so it was installed. I also sanded all the paint off the rim on the dash panel to give it a much better ground. I then added new fuel to the tank and the gauge moved as it was supposed to. I took the truck for a test drive around the block. It’s a 10km round trip. The truck got close to but never went over 200deg on the long sections of road. Today the weather temp is around 28deg and feels like 32deg. I did have it up to 40mph in some spots but it seemed to like crusing nicely at around 35mph. There is absolutely no wobble and the steering is very responsive. Does anyone have a part number for Napa for a new fan belt? I’ve got the wide pulleys on the truck. There seems to be a few different sizes listed online. The one I have is very old and sits down in the bottom of the pulley. It’s looking a little chewed in spots.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#842
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Jordan, you will be looking for a “B” series fan belt, eg B52
etc. If you remove it, auto parts stores have a jig for measuring up your belt to get you the proper size. Note you will likely want one a couple inches shorter than the old one due to the stretch
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3RD Echelon Wksp 1968 M274A5 Mule Baifield USMC 1966 M274A2 Mule BMY USMC 1958 M274 Mule Willys US Army 1970 M38A1 CDN3 70-08715 1 CSR 1981 MANAC 3/4T CDN trailer 1943 Converto Airborne Trailer 1983 M1009 CUCV RT-524, PRC-77s, and trucks and stuff and more stuff and and....... OMVA, MVPA, G503, Steel Soldiers |
#843
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The belts shouldn't stretch. You should be able to buy one the same size. That's what the measuring thing is for. They may wear on the sides. If the bottom of your pulleys are shiney, the belt is worn out or the pulley is worn out.
Interestingly Chris, the flat head v8 in the carriers take B52 belts as well.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
#844
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Well I did a Canada Day drive today. Round trip would have been about 100km. The truck drove great, well almost.....about 15km from home the fan belt let go. CAA and my dad to the rescue. Tow truck was on scene in about 25min and we were home in no time.
My wife, Vicki called it to. I said let’s take the CMP for a drive, her reply was “yeah I’m probably going to call a tow truck”. Well let’s hope she called it with the lottery ticket she bought on the way home.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#845
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And neither of you thought to use the old pantyhose replacing a broken fan belt hack? I'm glad nothing was broken!!
I got thinking about a loose fan belt causing overheating at speed and it makes perfect sense. As the speed increases so would the pressure needed to drive coolant through the water pump and the loose belt would slip on the pully reducing circulation. |
#846
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Yes nothing broken is nice. Tow truck dropped me off at home. Cut the old belt out, started up the truck and backed into the garage.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#847
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courage
don't let coming home on the hook discourage you. I've come home on a hook three times, actually one of those was to the destination where i fixed the contamination. The fan can overpower the belt, 6 blades moving a lot of air and if you are over 30mph we are past it's design speed. I use a 5/8 belt reasonably tight. the belt tension is a regular maintanence check item
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#848
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Quote:
Fast forward to yesterday. My wife rented a car (VW Golf) and because of the two driver jockey dance she had me drive it home. Then in the middle of nowhere doing 115km/hr on the 401 bang woppa woppa woppa and a violent pulling to the left narrowly missing a car in the fast lane. Got well off on the shoulder to find the front right tire disintegrated. No problemo...there was a fully inflated donut in the back. Jack there too, but no wheel wrench. So I call the 1-800 'save me' number explaining the problem and my location to two different foreign call centres, and then a third time to the local contracted tow truck service. The tow truck dispatcher informed me I would have to find my own way home from the side of the highway because of covid social distancing rules. So there I am, a grown man broken down on the side of the highway unable to fix a simple flat. No matter, 3 hours later the defective VW was returned to the rental car place and because of all my trouble they upgraded the rental car my wife is now driving in comfort. |
#849
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Quote:
How does the fan overpower the belt?
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#850
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fan speed
the faster the fan goes the more horsepower it needs to move the increasing amount of air, just like losing tractions when you apply to much horsepower to the tires. more grip helps hence make sure you use 5/8 belts and pulleys. A fan unlike a car doesn't lesson the draw of horsepower when it reaches a certain speed it is uphill so to speak all the way.
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#851
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Fan belt
I use this belt and always have a spare with me. (I do run an alternator though)
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#852
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Jordan, was that a new belt or the one you burnt? Btw, there are better photos of Vicky.
Harry does that belt cross over to a B52? I like those belts as well.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
#853
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Vicki too know the picture as she has a great sense of humour. First she thought I was joking about having to shut down. Then when I actually pulled over and turned off the truck she figured I was no longer joking.
I stopped in the other day at Princess Auto to get a replacement belt. I’d read online that the Chevy 216 needed a 42” belt. So I got two. Got home and they are too short. So after dinner I took them back and got three different sized ones. Well they were too long. It turns out I needed a 44” outside length one. Well that turns out to be the only size out of about 1 million sizes Princess Auto doesn’t have. They had B40, B42. So off to the Home Hardware nearby that is unlike city Home Hardwares. They had name brand Dayco B41. Got home and it was a job to get it on but once on it fits great. So Dayco B41 is what I needed. The fitting issue I had with it was a sever lack of room and I’ve got the large pulleys on both the water pump and the generator. When I used a size larger belt it slid over the generator pulley but then there wasn’t enough adjustment to tighten the belt.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#854
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Jordan if it’s any consolation, my first shake down drive in my 12 cab Ford left me stranded with an overheated coil on the dizzy.
Lucky for me I had another at the shop, so it was a case of hitch hiking back to town to retrieve some help and sole tools to do a road side repair.
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3RD Echelon Wksp 1968 M274A5 Mule Baifield USMC 1966 M274A2 Mule BMY USMC 1958 M274 Mule Willys US Army 1970 M38A1 CDN3 70-08715 1 CSR 1981 MANAC 3/4T CDN trailer 1943 Converto Airborne Trailer 1983 M1009 CUCV RT-524, PRC-77s, and trucks and stuff and more stuff and and....... OMVA, MVPA, G503, Steel Soldiers |
#855
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I have found a surprising variation in sizes between different makes of what were supposedly the same standard size belts. I am not talking 1/4" but up to two inches on a long belt when measured very carefully. It seems to be necessary to put a tape measure round a belt that fits properly and record the length, then measure any belt you buy before taking it home.
Wouldn't you think that they would be standardized in the real world rather than fairyland ? David |
#856
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I went through the same thing with a few different vehicles, where Princess auto didn't have the exact size I needed. TSC had a very good selection and their prices were right on.
I'm not sure those belts from TSC and PA are meant for automotive applications. I think they are more for electric/gas motors driving equipment like pumps or fans. But for the limited use we will do, they hold up just fine. The automotive ones are considerably more expensive. Price out what you want from NAPA and you will see what I mean. |
#857
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Rob, I think there is quite a difference in the way some belts are made. Some being "wrapped", while others are "cut".I think the cut belts are better quality? Then there is the industrial verses automotive, which is about width and angle differences. I do like those cogged belts.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
#858
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The battery box project is moving along nicely.
I got some stamping died made to replicate the burned in text on the boxes. They worked perfectly.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#859
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The boxes are also done. I couldn’t be happier with how this project is turning out.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#860
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Wow, those burned in markings look great. Could you post a photo or two of the stamps please ?
David |
#861
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Jordan,
Those boxes turned out awesome...... and the truck of course! I think you did very good for a first (long) drive. Bringing some spare parts usually means nothing breaks.......like when you bring an umbrella....than it doesn't rain! Alex
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Chevrolet C8 cab 11 FFW BSA Folding Bicycle |
#862
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Finally got some time to work on fixing my 1887 Singer 29 UFA and finish a sewing project for the truck.
The original is on the left and my new made one is on the right. I’m quite pleased with it and just need to source a snap for it.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#863
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Working away on the special straps for the canvas covers. These go on the two large bins in the back of the truck.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#864
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top notch work Jordan.....enjoying this thread very much!
Did you use original webbing straps as a basis for the conversion? I have also purchased a bunch of webbing with nice stamps to use for my C8 tarp when I finally get to it. Alex
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Chevrolet C8 cab 11 FFW BSA Folding Bicycle |
#865
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The straps are original material. The quick release straps were original GM boxed straps but they weren’t long enough so I stitched in lengths of the P37 utility straps. My sewing machine handled that fine but now is not enjoying stitching them to the canvas. I just got off the phone with our local canvas sewing place and they are going to take a look at them for me Thursday.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#866
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Today’s progress until the 1887 Singer broke down again. It’s a great machine that just needs some loving care.
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#867
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Went out for a nice 60 mile drive tonight. Everything was great and I’m glad I brought along the ear plugs. That 6 bladed fan makes a tremendous amount of noise.
https://m.youtube.com/watch?feature=...&v=OE5X9iKonCc
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer |
#868
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Quote:
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#869
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Quote:
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Mariano Paz Buenos Aires, ARGENTINA 1944 Ariel W/NG 1945 FGT FAT |
#870
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I've had the fan compare to being followed by a plane.
Quote:
I've had people who I has following tell me the fan sounds like they are being followed closely by airplane. I've also learned that when a Chevrolet CMP gets quite driving down the highway that you have lost the fan belt. One point I would mention for anyone playing mix and match with crank shaft and fan pulley needs to be careful as the stock CMP fan pulley is slightly smaller than the crank pulley, while the latter 216 engines the fan water pump pulley is significantly smaller. This can result in fan being dramatically over speed. (I've done it) Glad you are getting to the point when you can enjoy driving after all your hard work. Cheers Phil
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com |
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