Unimog Club UK
General Topics Forums => Unimog build threads => Topic started by: Mongol on February 03, 2016, 05:30:22 pm
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Every time you fill up ideally, you should notice a difference in how smooth and a little more power and quieter.
Use mineral not the new synthetic oils.
Moose
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I c. I'll do that. Do I have to put that oil everytime I fill the tank. Or just from time to time?
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Two stroke oil is the oil you put in a chainsaw or moped petrol.
Moose
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It's not garunteed but it's good practice when you put fuel in your Unimog put a litre of two stroke in the tank before filling up, make sure it's mineral, I don't know anything about the fuel where you live but we have low sulphere and bio diesel blended both of which did not exist when these engines were launched ! The two stroke oil will help the pump with lubrication.
Moose - See more at: http://www.unimog.club/show-off-your-kit/my-mog-619/15/#sthash.8RbHYdtp.dpuf
Sorry I didn't understand what u meant by "stroke". What kind of oil is that? Is it the engine oil that we use?
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It's not garunteed but it's good practice when you put fuel in your Unimog put a litre of two stroke in the tank before filling up, make sure it's mineral, I don't know anything about the fuel where you live but we have low sulphere and bio diesel blended both of which did not exist when these engines were launched ! The two stroke oil will help the pump with lubrication.
Moose
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The upright is totally seperate from the exhaust I've driven hundreds of Unimog tens of thousands of miles some with upright exhausts and some without, you cannot tell the difference 😊 And I'm blessed with with good hearing
Is your engine a bit smokey ? Blue on start up or black under full load ?
Moose - See more at: http://www.unimog.club/show-off-your-kit/my-mog-619/15/#sthash.fCTWvROu.dpuf
Oh, thank u for your encouragement. That really inspires me. then I'll keep on thinking about my little project. As for the engine smoke I can't be sure. Under the full load it sends out a dark smoke. Can not tell the colour. Haven't noticed on the start. But I would say the engine is smokey.
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The upright is totally seperate from the exhaust I've driven hundreds of Unimog tens of thousands of miles some with upright exhausts and some without, you cannot tell the difference 😊 And I'm blessed with with good hearing
Is your engine a bit smokey ? Blue on start up or black under full load ?
Moose
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Hi Mongol
If you can the best thing to do is buy the genuine exhaust the problem you have is your spare wheel and that you have long exhaust you can buy and fit the parts and the upright pipe but it will cost a fair bit ! Let me ask around as sometimes these parts are available used.
It won't make any difference to noise in the cab as its not physically conected to the cab upright, also the ambulance body is standard ? So will not cause any problem.
Moose - See more at: http://www.unimog.club/show-off-your-kit/my-mog-619/15/#sthash.ggPhvT5l.dpuf
Hi Moose,
I already have the genuine exhaust. Purchased it 2 years ago but still have headache with the spare tire mounting problem. The back body is standard. But I did a lot of things inside of it. First took off the original heat and noise isolation material. Secondly painted the whole inner metal area with the special paint (bought from Russia. they say they use it on the space crafts. 2mm thick paint layer equals to 6cm isolation material). And I think that's true cause I've tested it in really hot summer days and in really cold winter condition. Under the direct hot sunshine the back body is still cool. No need for additional fans or air conditioner. Winter case is a bit different as a lot of cold air goes in through the windows. But I believe the paint still helps to keep the warm temperature. Then I mounted a basalt wool pieces in order to be more sure regarding the heat isolation. So the exhaust noise will be heard very little in the back body. Not sure about the smoke though.
Just wondering about the driver's side in the cabin. As the driver is myself it would be very difficult to hear that exhaust noise all the time right above my ears. Therefore would like to hear of your experience as much in details as possible before I decide to make this move.
With respect,
Mongol
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Hi Mongol
If you can the best thing to do is buy the genuine exhaust the problem you have is your spare wheel and that you have long exhaust you can buy and fit the parts and the upright pipe but it will cost a fair bit ! Let me ask around as sometimes these parts are available used.
It won't make any difference to noise in the cab as its not physically conected to the cab upright, also the ambulance body is standard ? So will not cause any problem.
Moose
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Hello Moose,
Thank u for your advise. I'm still thinking about the spare tire mount in this particular case. Have checked the rear wheel for the play but it's fine. Looks like the camera took the pic in that way.
There's one thing I'd like get your advice. I'm also thinking about mounting the exhaust pipe up along the cabin on the driver's side. I've never been inside of cabins that have that kind of raised exhaust pipes. I wonder how noisy it would be and plus what would be possible measures to not allow the exhaust smoke enter the rear body during the drive.
Pls advice me.
Thank u,
Mongol
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Mongol
If your going to mount the wheel there I would use as big a surface mount as possible use something like panel fix, bolt it obviously and the also make a safety strap fixed to a seperate area in case of failure.
Use a wheel from a disc brake 406 as they are lighter than the late 1300l wheel as long as you don't have flat face wheel nuts.
Also have you checked your hubs for play ? Just in the picture the rear wheels look splayed especially the left wheel
Moose
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I plan to fix the tire on the spot where the fire extinguishers are
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Ok thank u all for the advice. Think I got enough information regarding the tires. The next thing I'm planning to do is fix the spare tire on the back of the back body. I've seen many cases from the internet but still haven't got a right idea. The problem is that I didn't plan the structure of the extended part to hold the spare tire from the very beginning.
Have u got any experience regarding this matter (mean fixing the tire on the extended part)
Mongol
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Hello Brian,
Thank u for such a comprehensive respond. If it's just a characteristic of the tyre then what maker would u advise me to the best? Moose advised me Dunlop would a right choice as all round tire. I'd like to listen to as many advices as possible before investing in tyre change.
Thank u.
Mongol
Personally I'd go with Moose's (aka, my Dad) opinion. He has a lot of experience with Unimog's and I learnt pretty much everything I know about them from him.
One thing I would note in terms of wear, it seems to be the chunkier tyres that have the most unusual wear patterns.
I personally like the Michelin XML tyre, it's very impressive offroad. However, if you're going to be doing a lot of road/surfaced track driving, then I wouldn't bother with the XML, as it's an expensive tyre and wouldn't be worth the investment, it also has a tendency to have the unusual tyre wear.
I may be totally wrong here,
but could it not just be the tyre compound? as it looks like its wearing in an a-b-a-b kind of pattern.
not that I am from an offroad background, but it looks to me like it could be a tyre that's almost 'all purpose' so the nobbles would be in rows of hard and softer compounds?
like I said I am most likely wrong, but hey ho
It could be this, would certainly make sense, the only way to find out if the compounds were different is to contact the tyre manufacturer themselves.
Cheers, Brian
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I may be totally wrong here,
but could it not just be the tyre compound? as it looks like its wearing in an a-b-a-b kind of pattern.
not that I am from an offroad background, but it looks to me like it could be a tyre that's almost 'all purpose' so the nobbles would be in rows of hard and softer compounds?
like I said I am most likely wrong, but hey ho
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Hello Brian,
Thank u for such a comprehensive respond. If it's just a characteristic of the tyre then what maker would u advise me to the best? Moose advised me Dunlop would a right choice as all round tire. I'd like to listen to as many advices as possible before investing in tyre change.
Thank u.
Mongol
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Hi Mongol,
As you say, this wear pattern on Unimog's is quite common, I'm not sure why this is the case but it does vary with the tyre, the worst I know of is the Michelin XML.
I can hazard a guess, but Dad may know better.
One of the thing's it could be is the unimog has a natural positive camber, this is to allow for a certain amount of load on the front axle (due to it's portal axle and disk brakes there is a lot of leverage there) hence, when there is no weight on the front, the top of the tyre sticks out further that the bottom of the tyre. perhaps causing uneven wear.
The second thing is the offset of the unimog wheels, because the hub face is quite a distance from the kingpin on a Unimog axle (due to the portal hub) the wheel forms a natural arc when turned. this could perhaps cause tyre scrubbing.
The third theory, and one which I think may be correct, or at least part of the reason, is the tyre itself. I know I have seen mancats with XML tyres which show the uneven wear in the past, so perhaps it is just a characteristic of the tyre.
Cheers, Brian
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unfortunately the pics do not upload
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It would take me three/four weeks to drive there ! A journey I would love if I had the time, I wonder what's the best route ?
The best all round tyre for your Unimog is Dunlop sp9 in size 405/70r20
I don't know why but I can not upload fotos for some reason it's something to do with my iPad
I'll keep trying today
Moose
Hi Moose,
I'm not sure about the best root. But I've seen a lot of motorhomes from Europe. They usually come in a single truck or by the group of two trucks. Think they travel on their own and surely had a lots of difficulties here. No language communication, dunno the best places to go and of course have no idea about the roads. Thinking about them it occurred me why can't I organise a trip and invite those motorhome travelers from abroad. We all like to travel in our trucks. Most of them equipped their back bodies with their own hands as well as I did. I was always eager to test those things that I had made in different situations and conditions. I think most of campers think the same way as I do. It will surely be very comfortable and safe for them. Hence I'm working on the website that will show the beautiful places and difficult roads around Mongolia along with several routes. What do u think about it. If u decide to visit my country u will be most welcome.
There is one thing I would like to ask u about the tires. I will attach couple of pics if I'll be able to upload them. These pics are for front tires only. They wear out in a very strange way that I don't understand. I've been in Germany last year and saw couple of military mogs and they all had a same tire wear out. Think u will easily understand what I mean by seeing this pics.
Mongol
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It would take me three/four weeks to drive there ! A journey I would love if I had the time, I wonder what's the best route ?
The best all round tyre for your Unimog is Dunlop sp9 in size 405/70r20
I don't know why but I can not upload fotos for some reason it's something to do with my iPad
I'll keep trying today
Moose
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I leave in Ulaanbaatar. Capital
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Where in Mongolia do you live, the furthest I've travelled is Moscow in a Lorry in 1992
Moose
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winter travel under -45C frost
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interior
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after the modification
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my mog when I purchased it
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Very nice looking mog, with a very nice winch :)
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The pictures look good ! It's suprising how good the conti mpt 81 tyre is in mud I put a set on my truck last year and found the traction very good in mud.
Have you chopped the back body for clearance and so losing the back doors?
Moose
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Hello!
Well, I can see 'em :)
How long you had it? Where's it from? Is it ex-mil?
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Don't quite understand how this site works. Anyways I'm attaching a couple of pics as a test.