Discussion:
NACCO Product Change

NACCO is dropping the Mazda and GM engines in their Class IV and V heart of the line product. Share is flat so I guess they need to drive profit in other areas.
  • Posted 10 Dec 2014 06:35
  • By malcolm1
  • joined 11 Apr'12 - 49 messages
  • Pennsylvania, United States
Showing items 21 - 32 of 32 results.
Given that I have regularly put over 20000 hrs on my Mazda OHC industrial engines, I'd argue otherwise. I've got about 20 still in service that way. Two units with over 40K.

Sure, we get timing belts break, but those are easy fixes on the non-interference engine.

Only head issues I get are the occasional head gasket failure, and tar build-up on the valves. You can also run them out of oil and seize that cam.

That being said, the 16V head configuration on the new engine definitely has me a little concerned. Plus a balance shaft. No word on whether or not they are interference engines, but they show 4000 hr timing belt change interval.
  • Posted 23 Jan 2015 07:26
  • By Beeker
  • joined 27 Sep'12 - 32 messages
  • Indiana, United States
Regardless of manufacturer, an overhead cam on an aluminum head is destined to be high maintenance with a relatively short lifespan compared to a conventional in block camshaft system.
  • Posted 23 Jan 2015 02:23
  • By Yotamaster
  • joined 6 Jan'12 - 10 messages
  • Alberta, Canada
Yotamaster
That's currently my best guess as well. But that just comes from seeing visual similarities, and knowing there is a 16V SOHC Mitsu engine in those displacements. Nothing concrete.
  • Posted 20 Jan 2015 01:19
  • By Beeker
  • joined 27 Sep'12 - 32 messages
  • Indiana, United States
I heard 4G64 Mitsubishi
  • Posted 19 Jan 2015 08:23
  • By M_VANDENTOP
  • joined 8 Sep'08 - 51 messages
  • Michigan, United States
I might be missing it, but the only reference I see to Kubota engines is the 2.5L optional engine on the 4000-7000 lb trucks.

I did just receive some addition information from Yale. Still nothing stating what the base engine is, but this might help:
4-cylinder single overhead cam design with 4 valves per cylinder
Cast iron engine block with a five main-bearing design for added strength
Aluminum cylinder head

I don't find anything matching this in Kubota's engine line-up.
  • Posted 17 Jan 2015 00:11
  • Modified 17 Jan 2015 00:20 by poster
  • By Beeker
  • joined 27 Sep'12 - 32 messages
  • Indiana, United States
Beeker,

The are Kubota engines. If you go to Hyster USA website you can click on the different models and it tells you which engine is used in which truck.
  • Posted 16 Jan 2015 23:26
  • By Partsguy5
  • joined 13 Jun'12 - 409 messages
  • California, United States
Here's a link to PSIs industrial engine line-up:
[url]http://www.psiengines.com/whatwedo/industrial-engines/[/url]

I'm trying to figure out what the 2.0L/2.4L engines are based off. I don't recognize them. Definitely not the GM/Vortec 4 cyl engine though.

Gonna miss those Mazdas. They've served me very well. I've probably put a million hrs on the ones in my fleet and had one single major failure... after it was run out of oil.
  • Posted 16 Jan 2015 09:37
  • Modified 16 Jan 2015 09:38 by poster
  • By Beeker
  • joined 27 Sep'12 - 32 messages
  • Indiana, United States
PSI had been doing the 3.0 and 4.3 GM engines for them for a while and GFI engine division, which is now owned by Impco, doing the 2.4 GM. So it does not surprise me that they would let PSI do the Kubota engines as well. Basically PSI dresses the engines to that OEM's spec. mostly the fuel system.
If memory serves me right it is who ever holds the EPA certification.
  • Posted 16 Jan 2015 06:52
  • Modified 16 Jan 2015 08:16 by poster
  • By Partsguy5
  • joined 13 Jun'12 - 409 messages
  • California, United States
in the past, I have seen sticker for PSI, who was whom had made the emission systems, not complete motors.
  • Posted 16 Jan 2015 05:47
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"
The new engines will be from PSI. Trying to get more information myself, but it sounds like they're already in production with them.
  • Posted 16 Jan 2015 03:52
  • By Beeker
  • joined 27 Sep'12 - 32 messages
  • Indiana, United States
Mazda and GM are discontinuing these engine lines, so a change is necessary.
  • Posted 12 Dec 2014 03:20
  • By Herbie53
  • joined 12 Dec'14 - 1 message
  • Kentucky, United States
Hi Malc, what have you found out? Will it be all Kubota?
  • Posted 11 Dec 2014 20:14
  • By wanderer
  • joined 20 May'12 - 19 messages
  • west midlands, United Kingdom

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