Glow plugs stuck

Rogerwh0 said:
The really unfortunate part is I never was able to test the plugs. I had to completely ruin them to remove. The threads are countersunk into the head so any and all moisture will seep into the threads in the head the corrode them beyond repair. The hollow nature of the glow plug is not a very strong item to remove. I had soaked them for 3 days with Blaster and still had to drill completely through.
Click to expand...

Is the glow plug you got have the aluminum threads on them....on ebay they have a lot of Kubota glow plugs and some look like aluminum threads?
 
I have used Muriatic acid....that you clean brick with.....works great on rusty bolts and studs....you can get it at most places...has saved me a lot of problems.
 
Art454 said:
I have used Muriatic acid....that you clean brick with.....works great on rusty bolts and studs....you can get it at most places...has saved me a lot of problems.
Click to expand...
How bad does it suck when you have to put your hands in it? IIRC, it's about 30% Hydrochloric acid.

I use it on concrete when I have to clean/treat but damn... that stuff is a little too nasty for my taste (pun intended).
 
LOL....Google search it....it really has a lot of uses. On that job I would use a artist brush myself....Looks like we all should put something down there....not acid but something to keep us from having this problem. That's not a fun project.
 
Where were all these corrosion cutting solutions a week ago? haha My solution has normally turned out to be a reverse cut drill bit or a torch!

On the bright side I should have all the parts to go back together today if the UPS man can get through the weather.
 
Rogerwh0 said:
Where were all these corrosion cutting solutions a week ago? haha My solution has normally turned out to be a reverse cut drill bit or a torch!

On the bright side I should have all the parts to go back together today if the UPS man can get through the weather.
Click to expand...

I had a reply about the Muriatic acid a few years ago on here....sorry I was late seeing the post....may have saved you a lot of trouble.
 
What is everyone's feeling on the copper sealant spray? should I use it on every layer including the head shims? or not at all?
 
Rogerwh0 said:
What is everyone's feeling on the copper sealant spray? should I use it on every layer including the head shims? or not at all?
Click to expand...

I have always used it on steel head gaskets and the such....never had a problem with it....some people use aluminum spray paint....I like the copper spray....sticky stuff but it works. On some other type of gasket material I just use Permatex Aviation Form A Gasket...on header gaskets we all found out that RTV High Temp Silicone works the best....just depends what you think you need and lots of experience.
 
I have got everything back together, runs great. Changed all the fluids and filters while I was at it.
My machine still wont start when its cold. I have functioning glow plugs for sure now! When it is down around 10 I wont even think about starting and struggles when it is 30. My Other Kubota mx5100 tractor starts no problem,I have started it many time at -10. Does anyone have any experience like mine? The local dealer says they should start right up? I installed a block heater, but I often park at my corrals and don't have a place to plug it in...
 
Mine doesn't like it when it's cold. I do the glow plug then try to start. Doesn't start so repeat. It takes a few times. If your battery is weak it makes it worse.
Mine is spoiled now and stays in a relatively heated garage (never goes below freezing).
 
Rogerwh0 said:
I have got everything back together, runs great. Changed all the fluids and filters while I was at it.
My machine still wont start when its cold. I have functioning glow plugs for sure now! When it is down around 10 I wont even think about starting and struggles when it is 30. My Other Kubota mx5100 tractor starts no problem,I have started it many time at -10. Does anyone have any experience like mine? The local dealer says they should start right up? I installed a block heater, but I often park at my corrals and don't have a place to plug it in...
Click to expand...

My 2004 starts quite well although it's stored in a steel shed so it get cold but not outdoors.

Just a thought but have you checked for voltage to the glow plugs when you hold the key in the glow plug power position. Possible that you need to hold the key farther right as in a previous thread or there is a bad solenoid or connection.

All of my diesels have been good starters with functioning glow plugs.

Good luck, Bob
 
I have checked the voltage they are definitely getting power. When its parked inside at about 40 degrees it wont start unless you use the glow plugs f or about 5 seconds. Definitely can tell they are working just not enough. I'm going to try some different additive and see if it helps at all
 
For me, even if it is 90 I need to use the glow plugs for a bit if the unit has been setting more than maybe 3 or so hours. Long enough to "cool" down.......The colder it is the longer I have to use the glow plugs............To me, nothing is wrong. IT IS NORMAL

It isn't gonna fire up like an old 63 chevy by just stompin on the gas pedal a couple of times and crankin away..........God bless.........Dennis
 
When it is real cold (15 or lower) I hold mine over for at least 30 seconds. It starts a lot easier than the Deutz in my Gehl skid steer does. Even with the block heater plugged in all night I have to cycle the glow plugs at least twice for it to start.
 
Rogerwh0 said:
I have checked the voltage they are definitely getting power. When its parked inside at about 40 degrees it wont start unless you use the glow plugs f or about 5 seconds. Definitely can tell they are working just not enough. I'm going to try some different additive and see if it helps at all
Click to expand...


That sounds about right. 5 seconds isn't to much at all at that temp and after it starts you can hold on the plugs for for a few more seconds until it settles out. that is an old trick i learned from caterpillar and Mercedes Benz.
 
Sure sounds like those glo-plugs are not heating up...assuming that you are turning the key past the run position and are holding it in the 'glow' position for several seconds before turning the key to 'start' position. A posibility could be the ignition switch itself. The start switch is fed through a sloblo fuse and when the switch is in the glow position supplies 12vdc directly to the gloplugs. Poor connection in the switch could be limiting the current available to heat the plugs.....just a thought.
 
Ill check the exact voltage at the plugs. I have put a test light on them and definitely have power to them. It drives me crazy because I have ad about 6 other Kubotas and have never had one that would not start.
 
You must log in or register to reply here.
Top