at this point im still looking for engines to consider (HP, dimensions, weight). after i find one ill look at the power band. so far the b3.3 is the best. my experience with diesel engines has proved that how it performs is largely from the IP. most manufacturers will build a generic motor and tune the IP for the end use (max HP, RPM, and torque rise). for instance it is rare to find a Case I.H. 501 with ANY different internal parts than any other 501. makes no difference whether it came from a tractor or a locomotive. if it is the same size engine it is the same. i suppose that you could come across a rare special application motor with a cam that would change how it performed, but i have never heard of this.

deutz.....i looked at the website. i see that the do make watercooled engines, but they are mainly an air cooled engine company. there is a deutz dealer within driving distance from me so it could be a possibility. although they are a deutz dealer they only sell air cooled power units for irrigation. ive thought about a deutz air cooled briefly. it would be a cool project. but having the engine enclosed under the hood of a jeep scares me a little. although there isnt any water to boil out, these engines can over heat on a hot summer day and if a fan belt breaks they over heat FAST. but it would be fun!

 

I wonder what it would take to convert one to liquid cooled? Are the blocks just not cast with waterjackets, and the same for the heads? Or is the "bloodline" of the system there, they just choose to stay air cooled? Might be a good question to ask. On one hand I can't imagine that the capabilities would be there and they wouldn't utilize it, while on the other hand it seems weird that they would have to cast a whole different set of blocks for liquid cooled applications.


Hmmm..

 

Here's a nice looking kubota. It's kinda in between the 3.3 and 3.9 Cummins in terms of weight/size. It's direct injected so its BSFC is better than the indirect injected kubota's. Looks like it has an inline pump. I don't know if that's a good or bad thing. Also don't know the price.

http://www.kubotaengine.com/products...3800dit_26.pdf

 

And a 3.3L Cat. It seems to be a little low on torque though (~175 ft-lbs).

http://www.cat.com/cda/components/se...5&languageId=7

 

Peak torque looks to be at ~200ft-lb, and torque at peak HP is ~174. It's not too terrible. Nothing some software changes can't fix

 

Doh! My bad.

 

Here's a Kubota that might work.

http://tinyurl.com/37uhg6

Looks like it might develop 170 lbs of torque.

http://www.dieselenginemotor.com/kub...300/page2.html

It looks similar to the one TDIwyse posted.

Chris
AKA: BigBlue

 

Here's a John Deere that is electronic control. It might also be a common rail.

http://tinyurl.com/2c8kt8

It has more hp than one on Ebay which is $4700 and 99hp.

Chris
AKA:BigBlue

 

ive had up close experience with air-cooled duetzs. the cylinder looks like a 4 wheeler engine. it has "air fins" to radiate heat (individual cylinder heads). there is a small fan on the front of the engine that spins very fast. it blows the air into one side of the engine. there is a shroud to force the air though the fins around the engine and out the other side. when i first saw one i though it was some kind of turbine (the fan on front looks alot like the front of a crude jet engine). there is no way to convert it to water cooled. their water cooled engines are a different block. i wish i had a pic to show you. an air cooled would be fine until july comes and i would be idling around field roads checking irrigation pumps and never getting the fan up to speed. but who knows? it might be fine........im just scared to try it.

thanks for the cat and kubota links. this is the kind of info im looking for. whats frustrating is most engine manufacturers are changing engine designs. they have a lot of info on the new engines but do not have any on older engines that are not a part of their product line now. im looking for the ultimate diesel gearhead so i can pick his brain, or at least get pointed in a good direction.

thanks guys

 

Just posting an update on my Sonoma. Did my first oil change with 2800 miles on it. Noticed a few bolts backing out but nothing a little locktite didnt take care of. Last 4 tanks of fuel were 34, 35, 35, 36 respectively. Not sure how long the 3.3 takes to fully break in but mileage is climbing slowly.

 

It's also learning the finer details about driving it. Like driving my Passat: If I can keep my foot out of it, and the shift points down to 3500, I'm getting closer to 40mpg.

My $2

Tony

 

That's outstanding! 40mpg's is not that far away . . .

What bolts were backing out? Just curious so I can check mine.

The warmer weather always helps my mpg's as well. The jeep swings about 20% from winter to summer.

Did you make any progress on the idle vibration?

 

The bolts backing out were the ones on my motor mount on one side. I think caused by my vibration issue. I have found the issue with vibration but not sure when I am going to be able to fix it. The oil pan top rail rubs on the drivers side. Would require engine removal to fix properly. I am so tight on room it would take some more modification to the front crossmember. I do think if I fix it I would have almost no vibration. Currently I have vibration only at idle. off idle the truck is fine.
Did you mount your electric vacuum pump to the body or frame on your jeep?
Mine is on the drivers inner fender and you can defiantely feel and hear it when it turns on.

 

Mounted on the firewall on the drivers side under the brake booster thingy. At first I could feel/hear it when it turned on. Found that by tightening the mounting bolts some more and increasing the pre-load on the rubber feet it reduced the vibs quite a bit. Might want to give that a try.

Personally, I kinda like a little engine vibration

 

TDI did you use your existing wiring for anything (Charging, oil, temp). Have you had any thoughts of power steering? I think I am going to try. I remember you saying earlier that your electric fan has a very low duty cycle. In what condition does it run and how long. How large is the fan? Does any one run a block heater? I have rigged one. Searching for other ideas!!!!!!!

This thing is going to be so cool!!!!!