Tm 150 head rebuild

Farmer mk1

Member
Arable Farmer
Location
Sheffield
Hello everyone.
We have had the head rebuilt with new parts through out and put it all back together, also had new alternator as it was getting a bugger to start in winter. We also had the injectors tested and one wasn’t right so had that repaired and all fine now. The head was only done as a precaution and cheaper than if it drops a valve to repair.
We got it back together Sunday and it fired up easy enough and runs smooth and had enough power, but it smokes slightly with a tinge of blue to it now. There wasn’t any play in the pistons etc and we cleaned the top of the pistons round the edges and tops of the sleeves of the carbon build up while we was there. I thought it might be same as before where it didn’t smoke at all unless under real heavy load and getting low on revs but now even when not pulling it has a slight blue smoke to it.
The lad who helped me rebuild it says it might stop once it has run in again after a few week but I’m not convinced. Anyone else had this before after a head rebuild?
Thanks
Mark
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
Not after a head rebuilt but you get it if you replace the rings in slightly worn bores. They do settle in with some work though. I’d be inclined to give it a few days work before worrying too much. Is there any oil in the manifold/exhaust. Seen a 155 that had oil dripping out of the joint between turbo and exhaust box after some engine work. It cleared up with some work.
 

Farmer mk1

Member
Arable Farmer
Location
Sheffield
I didn’t notice any oil in the exhaust to be honest as it was a new turbo about 2 1/2 year ago. It never smoked before we did the head, I just wonder if we have softened the carbon up with the wd40 we used to clean the head down and it has soaked into the carbon left over and is burning that. It wants a good run on the dyno I think to see what it’s doing. It does run a lot smoother so I think it is right but I can’t seem to understand why it puts out a slight blue haze.
 

Farmer mk1

Member
Arable Farmer
Location
Sheffield
We haven’t done anything to the bores, other than scrape top of pistons off round the edge of like half a mill of carbon and top of the bores the same thickness. I think it might just need to carbon up abit and it will be fine again.
 

Tomtrac

Member
Location
Penrith cumbria
Yes it will but that could be the problem with smoke

Worst case carbon fallen down between piston and liner and scord bore
But if you cleaned it did you hoover bits out from around piston
As above could off left it there it only build up again but if it was a mm it would give it more compression and poss make harder to start
One off them million and one questions do i or not
Am shure it will bed in after some good hardwork
Let us know how it does
I run a 8160 with turbo on 8,000 hrs pluss not touched but it doesnt work much in last five years
 

Farmer mk1

Member
Arable Farmer
Location
Sheffield
We just wiped it out best we could. There wasn’t any big lumps of carbon, just broke up into more small like powder pieces so don’t think it will of scored owt. Did it with one of them like Stanley blade scrapers. I think it just needs some good work to build up abit of a seal. I can’t see abit of carbon scoring the bores, or that Stanley blade scraper.
 

Badshot

Member
Location
Kent
If it gets difficult to start fit an iskra starter. You'll have no more trouble starting.

Think they might be mahl or similar now.
 

Farmer mk1

Member
Arable Farmer
Location
Sheffield
Yes, head and injectors. 300 hours later it's as good as any iv ever seen.
Ah that’s good news. I took ours in to the dyno today, it had head and injectors done and it did 145hp at shaft so I turned it up to 160hp at shaft. It didn’t do any more smoke on the dyno with the extra 15hp than it did at 145hp.
 
Ah that’s good news. I took ours in to the dyno today, it had head and injectors done and it did 145hp at shaft so I turned it up to 160hp at shaft. It didn’t do any more smoke on the dyno with the extra 15hp than it did at 145hp.
I'd just leave it around 150, my four are all standard and iv never had to touch a gearbox or anything. A few around here that that gave gearbox trouble were away over 180 hp, one even blew the side out of engine but it was screwed away up and the timing altered some how to let it be screwed even more
 

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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