JD 2520 repair after ending up in the water.

[gertjand]

Hi My JD 2520 compact ended up in te water so rods are bend due water in the engine and water not very compressible .

Engine is 3TNV82A BMJK but it's really tough to find parts. I can find JD parts which are hard to get by in the Netherlangs but I would think Yanmar parts should fit as well. Drawings of all the 3TNV82A variants are similar but its impossible to find the BMJK version in Yanmar parts catalogs.

	Yanmar part	JD part
Rod	719810-23100 ( 237)	AM881983 337.03
Gaskets	719823-92950 (268)	MIA880852
Spings	119802-22500 (57)	AM881986 (125)
Cam Shaft	119802-14580 (334)	AM881983 (680)

E.G.
so https://www.dutchengineparts.nl/ring-set-piston-119802-22500.html
vs

AM881986: Piston Ring Kit

Piston Ring Kit

bti-direct.com

Any suggestions?

 

[Tx Jim]

Have you attempted Googling part #s. I would have thought Yanmar engine parts would be fairly easy to locate.https://www.amazon.com/719810-23100-Connecting-Yanmar-3TNE78-3TNE78A/dp/B08MTFCDTW

 

[gertjand]

Thx, I tried but now I'm sort of cross referencing it via another model.

	Yanma part	JD part
Rod	719810-23100 ( 237)	AM881983 (337.03)
Gaskets	719823-92950 (268)	MIA880852 (468.07)
Spings	119802-22500 (57)	AM881986 (125)
Cam Shaft	119802-14580 (334)	AM881983 (680)
Crank shaft seal	119934-01800	M805278

1445 DIESEL FRONT MOWER -PC10345 shares the same engine but you can look that one up with Yanmar parts.

just ordered the parts, wait and see...

thx again.

 

[SatchmoIsBack]

Hi My JD 2520 compact ended up in te water so rods are bend due water in the engine and water not very compressible .

Engine is 3TNV82A BMJK but it's really tough to find parts. I can find JD parts which are hard to get by in the Netherlangs but I would think Yanmar parts should fit as well. Drawings of all the 3TNV82A variants are similar but its impossible to find the BMJK version in Yanmar parts catalogs.

	Yanmar part	JD part
Rod	719810-23100 ( 237)	AM881983 337.03
Gaskets	719823-92950 (268)	MIA880852
Spings	119802-22500 (57)	AM881986 (125)
Cam Shaft	119802-14580 (334)	AM881983 (680)

E.G.
so https://www.dutchengineparts.nl/ring-set-piston-119802-22500.html
vs

AM881986: Piston Ring Kit

Piston Ring Kit

bti-direct.com

Any suggestions?

I'm speculating here but, what does the 'BMJK' even mean? It might just mean that engine mates to certain mounts, certain flywheels, etc while the internal parts could be identical.

 

[gertjand]

I think so too. It's probably just variations in coolingsystem, exaustsystem etc. But it seems that there were internal variations as well. Engine CC's are not always the same in the different 3TNV82A models.

 

[SatchmoIsBack]

Thx, I tried but now I'm sort of cross referencing it via another model.

	Yanma part	JD part
Rod	719810-23100 ( 237)	AM881983 (337.03)
Gaskets	719823-92950 (268)	MIA880852 (468.07)
Spings	119802-22500 (57)	AM881986 (125)
Cam Shaft	119802-14580 (334)	AM881983 (680)
Crank shaft seal	119934-01800	M805278

1445 DIESEL FRONT MOWER -PC10345 shares the same engine but you can look that one up with Yanmar parts.

just ordered the parts, wait and see...

thx again.

That engine IS a Yanmar. AFAIK, John Deere doesn't make a single part in that engine. I could be wrong but I don't think so. Not a JD kind of guy so don't take my word for it.

 

[SatchmoIsBack]

I think so too. It's probably just variations in coolingsystem, exaustsystem etc. But it seems that there were internal variations as well. Engine CC's are not always the same in the different 3TNV82A models.

umkay. If you say so. But it looks to me like the '82' in the part number indicates it's an 82 cubic inch engine. OTOH, it could mean it's got a bore of 82mm.

Good luck

 

[dodge man]

It’s on another forum someone is rebuilding a similar engine. In his case he bought it knowing it had problems and had a badly seized crank. He is having problems getting the correct crank. The used one he got went in but the pistons ended up sticking up above the deck a little bit. My point is there are some variations on these engines. I’m pretty sure it’s an all Yanmar engine also.

 

[zzvyb6]

Have you looked here ?

https://www.lozeman.nl/wp-content/themes/pixel-example/onderdelen_tekeningen/Motoren/Yanmar%20Motoren/3T/3TNV/3TNV82/3TNV82A-BDSA3.pdf

 

[gertjand]

Yes I checked that one out as well. Just bought all the parts. Fingers crossed and I'll share my experience. Shaft is coming from Japan so might take 10 days.

Got it here: https://www.dutchengineparts.nl/catalogus/yanmar/engine/3TNV82A-BMBB