Loader Yanmar 1700 Loader quetion

[California]

OEM spec for the radiator cap on (most?) Yanmars is 13 psi. I hope this is convincing:

YM240 Parts manual: Cap # 124450-44590.

Numerous sellers online: 124450-44590 = Deere CH18207 Example:

Fits John Deere Tractors 650, 750, 850, 900, 950, 1050, 1250, 1450, 1650
Replaces OEM No. CH18207, CH10427
Fits Yanmar Tractors F14, F15, F16, F20, FX20, GT14, YM146, YM186, YM187, YM195, YM220, YM240, YM276, YM330, YM336, YM1180, YM1401, YM1500, YM1600, YM1601, YM1610, YM1700, YM1702, YM1720, YM1810, YM1820, YM2000, YM2010, YM2020, YM2310, YM2500, YM2610, YM2620, YM2820, YM3000, YM3110
Replaces OEM No. 121120-44590, 124450-44590

(The first genuine Deere CH18207 I found was $29 then two others around $20!).

Tisco CH18207:

OE Type Radiator Cap 13 psi. For radiator overflow reservoir systems, fits 3/4" deep neck. Tractors: 330, 430, 650, 655, 750, 755, 850, 855, 950, 955, 1050, 1450, 3320, 4500, 4700, 4720, 5105, 5205, 5320, 5520.

As part of my minor reconditioning of the YM240 when I bought it in 2003, I did research similar to this and put on a 14psi lever-vent cap spec'd for '72 Datsun. Twelve years later no issues at all with the cooling system.

I hope this puts the issue to rest.

 

[normde2001]

I suspect Hoyes RC-28 is the Stant 7psi 10228.

 

[winston1]

Normde, 10 years ago you stated here yours originally had a 13# cap. http://www.tractorbynet.com/forums/yanmar/55789-radiator-cap-correct-my-ym240.html

 

[normde2001]

Normde, 10 years ago you stated here yours originally had a 13# cap. http://www.tractorbynet.com/forums/yanmar/55789-radiator-cap-correct-my-ym240.html

Yep, strange, I don't know how I would have known that unless I just read in in the manual. As I said the only legible writing, (to me) is a Arabic 7. Just recently saw fit to install that cap I bought 10 years ago.
Apparently someone must have said it was a 13# but Aaron told me it was a 7, which I chose to believe, after seeing the 7 on the old cap. Matters not, one way or the other. If you are boiling over with a 7# you got another problem anyway, but it will cure some minor leakage..

 

[HoyeTractor]

I did a very unscientific test on our current batch of caps (made by Kent) and the best I could tell they are 13lb. I used a digital scale and compared to several original Yanmar caps that we had left over. I do know that we used 7lb caps for many years also and had zero problems. Both work just fine.

I guess it all comes down to how much over the boiling point you really want to run your tractor?

With a 50/50 mix of antifreeze and a 7psi cap- your coolant will not boil until about 240 degrees. With a 14lb cap & 50/50 mix you increase the boiling point to about 260. The temperature warning lights should all come on at under 220 so both are well over that number.

 

[clemsonfor]

I did a very unscientific test on our current batch of caps (made by Kent) and the best I could tell they are 13lb. I used a digital scale and compared to several original Yanmar caps that we had left over. I do know that we used 7lb caps for many years also and had zero problems. Both work just fine.

I guess it all comes down to how much over the boiling point you really want to run your tractor?

With a 50/50 mix of antifreeze and a 7psi cap- your coolant will not boil until about 240 degrees. With a 14lb cap & 50/50 mix you increase the boiling point to about 260. The temperature warning lights should all come on at under 220 so both are well over that number.

Thanks for that Aaron, that is very good info and Data. Now one of you achive type guys need to mark where this is written down as it is in such a random post and burried down deep.

 

[California]

Thanks for that Aaron, that is very good info and Data. Now one of you achive type guys need to mark where this is written down as it is in such a random post and burried down deep.

New thread. This will be easier to find in the future.

Radiator cap on (most?) Yanmars is 13 psi. 7psi also works well.

 

[clemsonfor]

i found it before this one! ha!

 

[kmartshopper]

I just got a Yanmar 1700 and so far I love this little tractor. The only problem is that I want to add a loader to it. Do I have to get a yanmar loader or will any compact tractor loader fit with modifications for attachment?

I have both a YM 1700 and a YM2000... The 1700 is my dedicated bush hogger the 2000 is my utility tractor

I bought a Koyker 120 loader for the 2000.... I get a lot of work done with a loader. Im literally in the process of digging out a pond.. almost to a point where i need a backhoe. so no i have a 3 point backhoe on its way from China.. This is double duty for this loader and i constantly check for problems after a day of work.

Things to consider....

If you have a 1700D then you will be in a far better position when using the bucket. If you dont but have your heart set on a loader... consider selling and getting a D version ( 4 wheel drive with fat front tires) the 2wd front tires tend to bog in muddy terrain. You will thank me later...

Weight.. You will want some counter weight in the rear. I use a box blade with suitcase weights.

Bucket... if you have a YM 2000 or better the 120 koyker with the larger bucket is good, but a 1700 you might consider the koyker 80...

Attatching points.. You want to make sure they are torqued to spec.. Over or under will strip out the threads from the engine case.

You definitely want to grease the points with some frequency. especially if you give it a lot of work.,

( one of the pics is where i had to tie in for hydraulics.. There is some modification to the tractor to get it to work but most of it bolts right on)