It is a DMAX. Pretty sure this is the 3.0l ISUZU 4jj1 DMAX boat I seen posted on a different forum. I wished we could get these engines imported into the states, I'd love to put one in my JEEP. A 3.0l 4 cylinder capable of 700+HP would be fun.
Twins with Twins, Anyone?
- Thread starter kidturbo
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It is a DMAX. Pretty sure this is the 3.0l ISUZU 4jj1 DMAX boat I seen posted on a different forum. I wished we could get these engines imported into the states, I'd love to put one in my JEEP. A 3.0l 4 cylinder capable of 700+HP would be fun.
No. The Colorado got the VM motori engine similiar to what was in the diesel Jeep Liberty, the DMAX engine was an all ISUZU design. The engine got used here in the states for a SHORT run in small ISUZU box trucks, but not in enough numbers to find one you could afford.
Pretty sure that’s Simon over in Thailand, nice to see he got a tan and looks to have lost some weight too
We were about ready to crank it up today but noticed a small coolant leak under thermostat housing when testing the electric circ pump. Seems someone forgot to true up the bottom of the adapter plate after welding it on.. What a dpuchbag.
Then once we took the intake off, found two cracked AN fittings leaking on the turbo cooling lines. Man if I find that guy I'm gonna give him a piece of my mind. .
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Then once we took the intake off, found two cracked AN fittings leaking on the turbo cooling lines. Man if I find that guy I'm gonna give him a piece of my mind. .
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Ok made it home at 1AM and got rested up. So here's the weeks updates.
Once we resolved the closed loop coolant leaks, decided to warm this engine up without the seawater pump connected. Our makeshift hosing on that side is still a bit drippy.
So we get it running around 5pm and I quickly noticed that the hub on my marine to dyno driveshaft adapter has a very slight wobble to it. Seems the weight of this yoke and fist size U-joints, or our last minute machining of an alignment ring, has shifted the press fit spline shaft ever so slightly. Not a huge deal as it could be chocked up in a lathe and trued again pretty quickly. But we also noticed when when ya put a pry bar under the yoke and lifted, the bearings in my hub had developed about 1/4" of movement.
So while neither issue is a huge concern unloaded, Mark and I contemplated possible issues at higher RPM and loads. When that 50lb U-Joint assembly X 4500 RPM equals a chit ton of force with a very slight wobble and good bit of side play. Conclusion, neither of us really wanted to bet our end of the hardware costs on the odds it doesn't fly apart.
After considering the options, easiest solution is I laser out a new engine mounting plate on Monday with one big hole in center. Then we can use his tried and true neutral ballance flywheel and adapter assembly, ditching the marine tranny damper setup for this part of the deal. After looking up some pics of other Superflow marine dyno setups, I noticed those only have a long straight splined driveshaft with carrier bearing at the engine side. No extra U-Joint on that end. Now I get why...
Got me again Acme engineering company.
Once we resolved the closed loop coolant leaks, decided to warm this engine up without the seawater pump connected. Our makeshift hosing on that side is still a bit drippy.
So we get it running around 5pm and I quickly noticed that the hub on my marine to dyno driveshaft adapter has a very slight wobble to it. Seems the weight of this yoke and fist size U-joints, or our last minute machining of an alignment ring, has shifted the press fit spline shaft ever so slightly. Not a huge deal as it could be chocked up in a lathe and trued again pretty quickly. But we also noticed when when ya put a pry bar under the yoke and lifted, the bearings in my hub had developed about 1/4" of movement.
So while neither issue is a huge concern unloaded, Mark and I contemplated possible issues at higher RPM and loads. When that 50lb U-Joint assembly X 4500 RPM equals a chit ton of force with a very slight wobble and good bit of side play. Conclusion, neither of us really wanted to bet our end of the hardware costs on the odds it doesn't fly apart.
After considering the options, easiest solution is I laser out a new engine mounting plate on Monday with one big hole in center. Then we can use his tried and true neutral ballance flywheel and adapter assembly, ditching the marine tranny damper setup for this part of the deal. After looking up some pics of other Superflow marine dyno setups, I noticed those only have a long straight splined driveshaft with carrier bearing at the engine side. No extra U-Joint on that end. Now I get why...
Got me again Acme engineering company.
Attachments
Pick up the new rear engine plate in the morning from laser shop, and heading back to Indi. Hopefully this setup does the trick...
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There was once a time Josh that I didn't. So I just quit playing. But now I look at it as Adam from Mythbusters says, "failure is always an option..."
Once you understand that statement, plus a little bit of humility, makes life go a lot easier.
Like my laser guy who just told me to spend the extra $20 on a pizza and handed me his paint marker..
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Once you understand that statement, plus a little bit of humility, makes life go a lot easier.
Like my laser guy who just told me to spend the extra $20 on a pizza and handed me his paint marker..
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I'm right there with you. I used to get really upset when things went wrong, but I realized that it doesn't help anything to let emotions rule you. I still struggle from time to time, but when things start to overwhelm me, I take a step back to catch my breath and realize that I have things pretty good. At least I'm fortunate enough to have the problems I have.
A man told me when I was younger "show me someone who doesn't mess something up and I'll show you someone who doesn't do anything". I don't care who you are or what you do, you will mess things up or fail. All we can do is learn from it and move on. I tell our son that all the time, he's only 6. I tell him when I mess up a part at work and tell him it's my fault, I don't want him growing up thinking his old man doesn't make mistakes and thinking he has to be perfect, there is no such thing as perfect. I tell him all the time "don't be like me, be better than me".
i still get frustrated of stuff that went wrong but most of the time its my own f-up. when im experimenting, that shit is fun, even when failing cause frankly, its most likely due to the fact no one else has tried it and its all on me. Keeps my mind occupied and always thing how to fix the issue. whats really funny is when things break you never would have expected to in comparison to other parts you expected would!
Keep at it Turbo, this is good stuff!
Keep at it Turbo, this is good stuff!
