I replaced the head on my RTV900 with a new eBay part and it worked OK.
There was a crack in the head above cylinder #2.
It would overheat when climbing a hill.
Before installing the new head did you check the engine block deck for flatness?
Closely examine cylinder that is filling with oil to...
Back in 2019 I posted about this same issue. To fix I replaced the crankshaft seal and PCV vent with OEM parts.
Two years later the drips on the garage floor started again and are becoming more noticeable.
Seems that if the engine oil level is maintained between the two holes on the...
My property looks like a spicebush farm lol.
Since they camouflage the tree debris on the ground I have ignored the overgrowth until now.
I used a choke rope around the base, it worked perfectly for pulling tall plants.
Too bad I cannot identify which will bear fruit, at this time of year.
Yesterday I used the RTV to uproot 10 spice bush, 7' to 10' tall.
With a slack rope and running start in 4wheel drive most pulled out on the first attempt.
Just seeing if it was capable was fun and recreation for this retired guy.
These engines are durable BUT it seems like warped heads from overheating is common.
My unit suffered this fate, didn't bother to compression check. When I pulled the head there was an obvious crack. The head was warped but the deck was flat.
Complete OEM heads are available through ebay.
I purchased an OEM head for my RTV900 from a respected source on ebay.
It was complete assembly with head gasket, ready to install.
There are numerous ebay dealers listing complete d1105 heads.
This is one...
New Kubota D1105 Engine Cylinder Head complete w/ valves
I needed to replace the thermostat housing which was a major PITA. For best access the seat and plastic center cover had to be removed.
Sounds easy enough but the cover screws along the floor were rusted. A combination of cutting and chiseling was required to remove the screws.
I would replace...
Bum RTV900s have been listed and seem to sell quickly, in my area. Some with engine problems but most with transmission issues.
If the body is in decent condition (no cancer from road salt) $2K is the asking price.
What's specifically wrong with the engine? A new OEM head with valves (ready to...