Yanmar 4JH4AE oil plug adaptor to Jabsco 17820

[Tafika2]

The M14x1.5 oil plug/dip stick on my 2007 Yanmar 4JH4AE need to have a "T" fitting in order to attach a Jabsco 17820 oil changer. Has anyone done this and if so, what fitting(s) did you use to maintain the dip stick is usable? I don't care of the threads are metric or pipe thread, even if I have to use adaptors.

[boden36]

If it is similar to the 3JH from memory I just removed the bolt at the bottom of the dipstick tube, drilled it and brazed a nipple into the head. Easy matter to attach a pipe then. The pipe goes to a brass galley style hand pump.
Regards,
Richard.

[Tafika2]

Not sure if they are the same. Plug and dip stick are per the attached photos.
If they are the same, any chance you can send me a sketch of what you did?

[delmarrey]

I just push a hose over the dipstick tube and suck it out with a pump. No big deal. Yanmar dipsticks are at the lowest point of the oil pan. That's why they have a special procedure for checking the oil.

This is the oil pump that comes with the new yanmars.
BTW if you remove the dipstick plug (in the picture) then your going to need new banjo washers.

.

[Tafika2]

OK...stupidity has ended. My mechanical mind was making this way too complicated. The hose fits & deals perfectly over the dip stick tube...what was I thinking?
Thank you very much...problem solved!

[boden36]

Sounds like you have it sorted, but to answer your query, the arrangement looks the same as the 3JH.
After taking the oil from the engine, undo the bolt that goes through the banjo fitting at the bottom of the dipstick tube.
The bolt is already partially drilled. Just continue the drilling until it comes out through the head, and braze whatever fitting you want onto the head, leaving the hex part free so you can fit a spanner on to do it up.

Regards,
Richard.

[Maxs]

Hi everybody, there is another option, which in my case is the one that I use the most... Instead of inserting a hose through the long dipstick tube, I just insert it on the original dipstick location. Check Delmarrey pic. Left of the hose leaving the oil cooler is the original dipstick. It just has been cut on boat sides and it is just there as a plug.
This way, you also get to remove all the oil from the bottom of the pan, which you can't achieve trough the long tube...

[delmarrey]

Originally Posted by Maxs

Hi everybody, there is another option, which in my case is the one that I use the most... Instead of inserting a hose through the long dipstick tube, I just insert it on the original dipstick location. Check Delmarrey pic. Left of the hose leaving the oil cooler is the original dipstick. It just has been cut on boat sides and it is just there as a plug.
This way, you also get to remove all the oil from the bottom of the pan, which you can't achieve trough the long tube...

If your talking about this hole (in picture), what is that plug made of?
What holds it in place?
And will pulling it cause it to become loose on it's own?

I've seen this plug and wondered but not willing to experiment with my own motor.

.

[Maxs]

That's throne I'm talking about.. Is the original oil dipstick.. You can just grab it and pull it out. The handle side have been cut by Yanmar, as you can see in the pic, and also has been cut on the inside. There is just about 1" remaining on mine... I was planning to get a new one from a Yanmar tractor dealer, since it will be easier for me to check the oil level from the side, rather than from the top.... Well, I'll try to get if I can fix my engine.. Was overhauling it and block fell at the shop.. Had a huge crack and can't be repaired... Anyone with a spare 3JH4e block??? LOL.. Right know I'm engineless!

[Tafika2]

I see if this hole is on my engine. Do you know the thread size for this hole?

[Maxs]

The plug is not threaded... Is just a rubber plug pushed in... The hole is around 3/8" diameter... You can take it in and out as many times you want with no problem.. Is just what's left of of the original dipstick... As I fact, I think that the jh5 series got rid of the oil tube, and are using the original dipstick.. Not 100% sure, but I think I saw this on a friend's new 3jh5e...

[Maxs]

Ok, I wasn't that wrong after all.. Despite the diagram on the 3jh5 brochure shows the long oil dipstick tube, this is wrong.. That's the jh4 drawing. Here's a pic of a 3jh5e. You can see the dipstick right next to the oil filter. Hope the pic comes through!