How big is your dipstick?

woodster · Jul 19, 2015

dave_and_dd said:
Your transmission dipstick that is...

it's the Kanzaki model KM2P-1 on the 3ym20 of course.
I tightened it too much and broke off the threaded portion. bought a new one, supposedly the correct item: 177088-02451

However, as you can see in the pic, it's about 3/4 inch longer. Now it screws in fine. Just wondering if the new one is the wrong one or the old one was wrong?

How long is yours?

Anyone know if that's the correct part number or not? (177088-02451)

thanks for any help - Dave, in Tampa.

give me 5 dollars and i'll show you mine

seriously ....take the old and the new back to mastery and show them they should be able to sort it out ...by the way what did that thing cost.....

woodster · Jul 19, 2015

thank you for the price heads up the other place should be able to do the same thing ...they are under the mastery blanket

slaume · Jul 19, 2015

It kind of looks like the new one would read the same as the old one if it wasn't screwed in. Unscrew it, wipe it off and just stick it back in for a correct reading.

ALNims · Jul 19, 2015

dave_and_dd said:
Your transmission dipstick that is...

it's the Kanzaki model KM2P-1 on the 3ym20 of course.
I tightened it too much and broke off the threaded portion. bought a new one, supposedly the correct item: 177088-02451

However, as you can see in the pic, it's about 3/4 inch longer. Now it screws in fine. Just wondering if the new one is the wrong one or the old one was wrong?

How long is yours?

Anyone know if that's the correct part number or not? (177088-02451)

thanks for any help - Dave, in Tampa.

In my manual the dips tick shows both a high and low mark but my dipstick is like your original with only one mark. Does your new dipstick have two marks?

woodster · Jul 19, 2015

turn the old one around and but the bottom of the old one to the base of the new one and it it matches just check the oil by dipping the stick back in the hole without screwing it down like you have to do on the old one

ALNims · Jul 19, 2015

dave_and_dd said:
There's only the one mark on both. The only difference seems to be the length. I could mark it at the level of the original, but just wanted to know if anyone could let me know what the measurement of theirs was.

Dave.

Understand. My manual shows two marks but I only have the one. I was just curious. The best thing you could probably do is contact Yanmar technical with your question. I have the same gearbox as you do.

mikejay65 · Jul 20, 2015

What you need to be concerned with are two things, 1 does the new stick fit being longer and if so does the fill mark line match for new to old measured from the top not the bottom. if it does you are measuring the same point. I hope this helps

Morgan donor · Jul 20, 2015

The quickest way to destroy your transmission is to have too little oil in it. I would suggest changing the trans oil and putting in exactly the correct amount as per your service manual. Run the trans in gear for a while. Then take your new stick out,, clean it and mark where new full mark is with a file.

Since the place you bought it from sold you the the obviously wrong stick, expecting them to sort it out correctly is....unlikely.

Sailbad3721 · Jul 20, 2015

I was once told by a local small engine repair guy that there is a difference in technique for checking oil level between American made products and Japanese. He stated that US engines assume that the dipstick will be fully screwed in or pushed in while Japanese builders assume that the dipstick will NOT be screwed in but rested on the top of the threads. This is an important distinction if true. I can say that the few Honda small engines I've had follow this notion where my US made engines do not. My Honda Accord does expect the dipstick to be pushed all the way in.

The difference is actual oil level in a marine transmission could be serious (read expensive) if we don't do this right.

Salty Canuck · Jul 20, 2015

Hi Dave_dd,
A funny story about the old Pontiac Fiero, a midengine sporty car made during the '80s: the cars were prone to catching fire. Ideas were inadequate hosing for the long hoses required, inadequate ventilation, and a bunch of other stuff. The recall fixed the problem by incorporating a new, re-calibrated dipstick. The old dipstick meant not enough oil was put into the engine. The new dipstick had a higher fill mark. My now-wife had one; fortunately, it did not self-immolate!
Rod

Picflight · Jul 20, 2015

That "always something" keeps us engaged.

Let us know how it works out.

CompassRose2 · Jul 20, 2015

Guys would one of you with the same transmission as his please measure your stick and tell Dave the measurement? All of your suggestions are good ones, but he's asking for the length. That would really help him.

I'd list it from the bottom of the threads to the submerged tip of the stick. And from the tip up to the fill line. If he had those two measurements he could decide how to proceed.

Can someone do that for him?

Picflight · Jul 20, 2015

Seems the lubricant capacity is 0.32 qt.

http://www.navela.hr/site_media/media/cms_page_media/9/outline KM2P-1.pdf

Some more interesting links and details on the transmission;

If you want to see pictures and rear seal replacement;
http://www.tartan3500.com/uploads/3/1/1/9/3119926/replacetransmissionseal.pdf

Reference:
http://www.yanmarhelp.com/i_box2.htm

Extract from engine service manual:

You want to see what is inside the transmission, and bench test it:

https://www.youtube.com/watch?v=kCo16Os09vU

https://www.youtube.com/watch?v=F-9XlScJAz4

BigEasy · Jul 20, 2015

Dave,
Hope this information helps and doesn't confuse things further.
I have a 3Ym30 engine with KM2P-1 transmission. My dipstick resembles your new one. It measures 4 5/32" from the tip of the dipstick to the inside plastic flange (that the O ring seats against). Sorry for the difference in methodology, but you can compare your measurement to mine.
Now the confusing part. The Yanmar manual states that the dipstick should be inserted completely to check the oil level. What does that mean, should it be screwed in all the way or inserted all the way so that the plastic threads are resting on the filler hole? I have always checked it with the threads just resting on the filler hole. Really the only way to know for sure is to drain the transmission and replace the oil and then remeasure with the dipstick.
Here's some additional info. The oil recommended is SAE 20 or 30. The stated capacity is 0.3 liters or 0.32 quarts.
Let us know how you make out. Definitely has me wondering AGAIN what the proper method is for checking the fluid!

How big is your dipstick?

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