anyone know about big mowers ?

[8ob]

An XUD engine sounds to be as tough as they get, but seem to remember that they require a large and efficient radiator.
One that isn't clogged with dust, straw, and general debris is probably a bit aspirational on a mower....

Plugged rads kill off most of this sort of kit, simple fix with an air line/blowgun but no one bothers until its too late.

From the manual it only needs 17hp to drive it to match the original engine, and a rev limit of 3k.
A unforseen complication I see is that with mowers normally they have a govenor and you set the engine rpm with the speed control rather than a simple throttle and it just does whatever to keep the engine at that rpm. If that motor you want to use has any industrial applications they probably used a govenor setup rather than a throttle too.

Couple of options when using a car engine in plant, one is the electronic speed control unit/servos as used in some genny;s, only about £50. The other is the belt driven Speedic unit that landrover use when running PTO gear.

Bob

 

[Turbo]

i have some Peugeot diesel engines in the shipping containers

Funny, I was going to suggest a Pug XUD engine, very little to connect to get them running.

I had a few of those gathered up from cars I stripped for parts but in a fit of madness I did a clear out & scrapped them all! Regretted it ever since as I've a couple of projects in mind for them!

 

[not done it yet]

If the engine is that worn out, how is the rest of the drivetrain ?

Fred, it wasn't worn out’ - it failed due to a fault. If it is eroded it’s likely had a water leak or an injector problem. The head might be recoverable - but not economically!

I would suspect a crack in the cylinder, close to the bottom of the bore.

 

[Baloo]

Pardon our interruption...

thats interesting i would love a little tractor project but that one already has engine issues im getting the feeling these little engines have a few over heating issues

 

[Baloo]

Wellllll . . .

My Caterham requires 4500 rpm to do 70 mph in 6th - (very low diff ratio).

Drove it back from the south of France in one long hit some time ago, stopping a few times for fuel. Pretty much 80mph all the way.

But if we assume 70mph and a non-stop run - would take 6 hrs 40 mins for the crank to have done 1.8m revs.

Its done a good number of days like that over the last 23 yrs

i will have to eat humble pie then your figures are correct lol

 

[Baloo]

Again, I worked for an agent and did sales service and parts for them.

3 cylinder Mitsi engines were problematic with overheating.

Kubota engines better.

Yanmar best and most reliable.

im getting the feeling im better off not fixing the K3D and using something thats more readily available like the xud

 

[Baloo]

An XUD engine sounds to be as tough as they get, but seem to remember that they require a large and efficient radiator.
One that isn't clogged with dust, straw, and general debris is probably a bit aspirational on a mower....

plenty of room out back for a huge radiator off something big

 

[Baloo]

Plugged rads kill off most of this sort of kit, simple fix with an air line/blowgun but no one bothers until its too late.


Couple of options when using a car engine in plant, one is the electronic speed control unit/servos as used in some genny;s, only about £50. The other is the belt driven Speedic unit that landrover use when running PTO gear.

Bob

i hadent given any thought to a governor l thought i was just going to set the throttle at half and off i go around the meadow, so i went and looked at the dead torro thats up the farm that has the xud engine in it, there a round thing sticking out the the side of the injector pump that i dont recognize, is that likely to be a governor ? i can always " borrow" it if it is

 

[Baloo]

Funny, I was going to suggest a Pug XUD engine, very little to connect to get them running.

I had a few of those gathered up from cars I stripped for parts but in a fit of madness I did a clear out & scrapped them all! Regretted it ever since as I've a couple of projects in mind for them!

never throw any thing away lol just get a bigger bench to store it under, ive got 3 in my container but ive been and looked and they are all turbo versions, l dont think i need a turbo in a lawn mower , so......................... l think my rock crawler is going to lend its motor to the mower

 

[8ob]

i hadent given any thought to a governor l thought i was just going to set the throttle at half and off i go around the meadow, so i went and looked at the dead torro thats up the farm that has the xud engine in it, there a round thing sticking out the the side of the injector pump that i dont recognize, is that likely to be a governor ? i can always " borrow" it if it is
View attachment 452617View attachment 452618

If its the PTC version it should have the correct pump. I put an 1800cc industrial BMC engine into a Marina van many moons ago, accelerate away from the lights and if you didn't change gear a bit sharpish the engine cut would throw you forward Its only a pump swap, they are set up differently.

Bob

 

[Baloo]

ok i needed a non turbo xud diesel engine and funnily enough i had been thinking of switching the engine in my rockcrawler/buggy to petrol just to get it lighter and probably automatic, i was thinking about an mgf engine but autos are hard to find so maybe a little honda from around the year 2000 about 1500cc and auto, will have to have a look around on ebay and see whats about but the engines out of the rockcrawler now

and this is where i got lucky, i always think its better to be lucky than good lol

so the only real connection between the engine and the mower is the front crank pully a belt drives sideways to shaft that runs forward to the cutting deck to spin the blades and a 10" or so long flexible joint runs off the front face of the crank pully forward into the hydrostatic drive that powers the 2 front wheels, l thought this might take a bit of engineering but ha no would you believe the crank pully off the Mitsubishi engine drops right into the recess in the xud pully it self centers to the point i can feel no detectable play and the xud pully has enough meat on it to drill and tap the 3 fixing bolts to attache the drive pully in the same way as the Mitsubishi did

the one on the right is off the xud and the left one is Mitsubishi which just drops into the xud, drill 3 holes and tap and thats it

 

[Baloo]

physically it fits with ease about an 1" clearance at the back and i can also lose the clutch, i might try and get round to making engine mounts later today

 

[Baloo]

well i did make the engine mounts or at least a couple of them, just need to make one for the rear and its in and ready to fire up, i made a simple jig to get the crank pully in the right place i also tilted the engine more upright to buy me some more room around the exhaust manifold although i might switch the inlet and exhaust to ones off the ldv version as they are smaller

had to make a plate for the back of the engine to carry the starter motor as it used to be bolted to the gearbox when the engine was in a car
will add another engine mount to the top of this plate

there is a pully on the back end of the camshaft that used to drive a vacuum pump for the brake servo , taking on board what 8ob said about blowing out the rad with compressed air before/after each use it would seem a good idea to run a small compressor of this pully to fill an air tank, dosent need to be big , anyone know what i can pinch one of ??

 

[Baloo]

better turn my attention to fitting a radiator next i guess, i need to find a drawing showing the water flow through the xud engine as i want to ditch a lot of the water pipes and simplify the water system a bit

will use one of these rads

its twice the size that was in there twice the thickness and aluminum, i bought the party pack of them of ebay some years ago, think there was 8 of them in a box 3lt lhd ford explorer if i remember correctly , it was just under £50 for 8 rads guess there isn't much of a market for lhd for explorer rads in the uk but ive used them on most of my projects only 2 left now lol

 

[sako243]

A friend of mine and I both have little Ford/New Holland 1220 tractors as lawn mowers (@8ob also has one) they have a little mesh that slides down vertically of the radiator that can be easily removed and blown out. Just pop the bonnet (little twist latch) and pull it out and blast with air - quite often spinning it around fast in the opposite direction of normal airflow clears out the stuff.

I've never had to blow out the radiator but that mesh always gets covered in chopped grass etc., despite the mesh grill (larger diameter) on the front of the tractor.

 

[Baloo]

hi sako243 mesh sounds a good idea i can picture the grass cuttings going everywhere , if you have time can you post up a picture of the mesh so i can see the size, thanks

 

[sako243]

I'll grab one when I head outside down to the workshop.

 

[sako243]

The wee tractor. Quarter turn catch at the back of the bonnet to pop it open.

Grill then just pulls up, although on this one I need to pop the rubber intake hose off its clip (just squeeze and pull).

A couple of months worth of mowing

Radiator is nice and clean

Bearing in mind the battery blocks a chunk you still have all that rubbish getting through this grill.

 

[sako243]

@Baloo Most big tractors, combines, excavator etc these days have electric fans that are reversible. They can be set up so that they blow backwards for a defined period of time every so often to blow stuff off the rads. If you're putting an electric fan on you could do the same.

 

[jmp49]

My mower has a frontal deck that side exits so it sprays grass out off to one side rather than rotary cylinders as they're a bit better suited to uneven surfaces. You can get batwing mowers the same for gang setups. I just blow the rad out when I fill the tank and check hydraulic levels. The air filter the same which does get dirty quickly otherwise.

When I bought it , it had a grass collection system with a extra fan that attached the deck exit and fired the grass into a big container on the back, which was hydraulically tipped out periodically.
But, I dont want to spend my life making piles of grass clippings, and removing it helped stability on banks which I need.

I noticed your machine is a cylinder mower, hopefully your paddock is flat and not riddled with molehills and surprise holes left by the dogs.