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The last years would most likely be between 1990 and 92. As I mentioned in the PM I sent, countries in developing nations may get the old engine for a year or 2 longer. Many countries got the 1HZ in 90 which replaced the 2H.
It seems the 2H was used in the Coaster until 89.
I cant find a 2H powered Dyna, only H powered until 1980. But I thought there was a 2H Dyna..
Do you know much about the 1HZ?
It seems the 2H was used in the Coaster until 89.
I cant find a 2H powered Dyna, only H powered until 1980. But I thought there was a 2H Dyna..
Do you know much about the 1HZ?
Also, differences between early sleeved and timing cover is the oil cooler and oil filter housing, a different block. The early had the oil centrifuge spinner (which is a dam shame they got rid of, how many engines in history came with a spinner from factory?!), the oil line to the injector pump is a different configuration due to having a different oil filter housing. These are not interchangeable.
The rocker cover a little different too, but looks interchangeable with later.
Wonder if the injector pumps were interchangeable? The fuel lines are essentially the same, just different shape ferrules. But I believe injector nozzles were also different early to late?
I am finding the 2h a some what romantic engine. Sure it is slow, under powered, but gosh reliable and ultra simple. Very nice note, still fairly economical on the hwy compared to modern engines. I even meet folks choosing the 2h over the hz due to the timing cogs, which would last close to forever. Set and forget.
The rocker cover a little different too, but looks interchangeable with later.
Wonder if the injector pumps were interchangeable? The fuel lines are essentially the same, just different shape ferrules. But I believe injector nozzles were also different early to late?
I am finding the 2h a some what romantic engine. Sure it is slow, under powered, but gosh reliable and ultra simple. Very nice note, still fairly economical on the hwy compared to modern engines. I even meet folks choosing the 2h over the hz due to the timing cogs, which would last close to forever. Set and forget.
Also the early 2H has a different exhaust manifold, having no provision to bolt on a heat shield on top.
yes that's right, and the later exhaust manifold is a two piece. I believe some use the early one piece upside down for their turbo.
The water pump and housing combos are also different. I went through the exercise of changing mine out for the latter version since parts availability for an early water pump is almost impossible to source here in the U.S.
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fjwagon
SILVER Star
I have a H engine and I will say parts are harder to find than the 2H. I looked for a H starter what seemed forever. At the end I bought components here in the USA that fit a Cummings starter unbeknownst to me. The person whom sold me the parts asked if I rebuilding a Cummings starter and i said no. Anyhow, I got the part numbers from an Australian website and he crossed over them to whatever product line he was selling. I was a happy camper to say the least. I will say the 2H starter is definitely not the same as a H one.
