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  #281  
Old April 25th, 2006, 12:52 PM
Michael
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Michael
Discovery 1998
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On the Road Again!

Been driving for a week now - very impressive engine for the Discovery 1 even with the the stock ZF auto. I am starting to really wibder why gas engines even exist. Running at about 190 degrees (water temp).

Will be opening up first engine over the next few weeks to determine if repairable!
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  #282  
Old April 25th, 2006, 03:02 PM
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Sandro
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Been driving for a week now - very impressive engine for the Discovery 1 even with the the stock ZF auto. I am starting to really wibder why gas engines even exist. Running at about 190 degrees (water temp).

Michael, am I reading you correctly? Did you put one of these International 2.8 TGV's in your Disco-I (with a ZF auto)?
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  #283  
Old April 25th, 2006, 03:48 PM
Michael
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Michael
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Absolutely!

Quote:
Originally Posted by smenzel
Been driving for a week now - very impressive engine for the Discovery 1 even with the the stock ZF auto. I am starting to really wibder why gas engines even exist. Running at about 190 degrees (water temp).

Michael, am I reading you correctly? Did you put one of these International 2.8 TGV's in your Disco-I (with a ZF auto)?
Yes, that is correct. Mated to the stock 4HP22. It is M&D's Kit. The Transmissin is not a perfect match, but it is pretty darn good IMHO. and I am very happy with it. I am not using the kick down cable at the moment.
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  #284  
Old April 25th, 2006, 03:58 PM
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David Marchand
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Quote:
Originally Posted by Michael
Yes, that is correct. Mated to the stock 4HP22. It is M&D's Kit. The Transmissin is not a perfect match, but it is pretty darn good IMHO. and I am very happy with it. I am not using the kick down cable at the moment.
Explain this not using the kickdown cable please. You mean, it's not connected to the throttle body? How's the shift up/down behavior?

And lastly, your comments are worthless without pics!
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  #285  
Old April 25th, 2006, 04:08 PM
OBW_Canada
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Stephen Cahill
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Hey Dave
I wonder how long befor he rebuilds the transmission. How is yours working now?
Stephen
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  #286  
Old April 26th, 2006, 11:40 AM
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jim pendleton
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You'll toast your transmission running without the kickdown cable.

Try to just run it with complete slack until you decide to have me get one built for you.

JP
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  #287  
Old April 26th, 2006, 02:33 PM
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hate to just ask this outright, but curious as to costs. it looks to be around $10k, give or take, for the motor and bits from M&D. what are people seeing as shop costs to actually install the 2.8? Is around $15k a good number to work from if not doing it one's self? thanks.
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  #288  
Old April 26th, 2006, 03:04 PM
Michael
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Michael
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The kick down cable is not attached opposite the throttle, but it is still in the transmission, so I don't see why there should be a problem. Why do I get the feeling I am going to learn another hard lesson?

The automatic shifting on the way up is pretty decent as far as shift points and very smooth as for the actual shifting. When I need to bring it down a gear, I just down shift. It definetly "feels" like all the gears, especially gear 4, could be a bit higher, so I haven't had to down shift that much.

Will post some pics.

"Experience is the worst teacher. It gives the test before the lesson."

Follow-up Post:

Quote:
Originally Posted by Robbie Donaldson
hate to just ask this outright, but curious as to costs. it looks to be around $10k, give or take, for the motor and bits from M&D. what are people seeing as shop costs to actually install the 2.8? Is around $15k a good number to work from if not doing it one's self? thanks.
I did the conversion myself, but I think installation would be around $2500 - $3000.00 plus the removed engine, at least on the Discovery. I wouldn't bet money on my figures though! Heck, I would convert a Disco for that much!
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  #289  
Old April 27th, 2006, 01:35 AM
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jim pendleton
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Quote:
Originally Posted by Michael
The kick down cable is not attached opposite the throttle, but it is still in the transmission, so I don't see why there should be a problem. Why do I get the feeling I am going to learn another hard lesson?

The automatic shifting on the way up is pretty decent as far as shift points and very smooth as for the actual shifting. When I need to bring it down a gear, I just down shift. It definetly "feels" like all the gears, especially gear 4, could be a bit higher, so I haven't had to down shift that much.

Will post some pics.

"Experience is the worst teacher. It gives the test before the lesson."

Follow-up Post:


I did the conversion myself, but I think installation would be around $2500 - $3000.00 plus the removed engine, at least on the Discovery. I wouldn't bet money on my figures though! Heck, I would convert a Disco for that much!
If the throttle cable for the transmission is not attached to the main throttle cable through the injection pump you will burn up the transmission with extended use. You could learn another hard lesson. Maybe find a worshop manual and try to read up on your transmission.

JP
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  #290  
Old April 27th, 2006, 01:02 PM
Michael
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Michael
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Throttle



Is this shematice representative of the ZF Autos? So if the throttle pressure is low, and the governor "pressure" is high, does it push the shift valve too much and blocks fluid to clutches and bands?

So, if I set the throttle pressure at the highest, or full slack, there will always be enough, or will it push the shift valve too much and block fluid to clutches and bands?
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  #291  
Old April 28th, 2006, 12:41 AM
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jim pendleton
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Your on the right track. I'll brush up as well and help talk you through this. But like your picture illustrates the cable has a valve it needs to divert fluid flow under engine load circumstances. So that should tell you what you need to know.

JP
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  #292  
Old May 2nd, 2006, 09:08 AM
Michael
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Michael
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Needless to say, the kick down cable is back on the lever, only this time I attached it to the slot closest to the pivot(#4). I had originally attached it to the slot farthest from the center of rotation. It is much, much better.
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  #293  
Old May 2nd, 2006, 11:43 AM
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jim pendleton
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You can put a little slack to it also if it still shifts a bit to soon.

I'll still try to post up the technical explanation why not to leave it disconected when I find the brush.

JP
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  #294  
Old May 3rd, 2006, 11:54 AM
Michael
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Heres a pic

I have not tested the Hydronic in its current position, so I don't know yet if it will work this high up in the circuit. It would be nice if it did!
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  #295  
Old May 10th, 2006, 10:54 PM
Michael
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update for disco diesel re-power

Update:

Just went through first tank of diesel. Sill no official mileage numbers seems to be very good just from the amount of time it took to use up the first tank.

Engine:

running great, nice sound. reminds me of a siamese cat's purring.

Temps good. Exhaust Gas temperatures good (max up a hill is 600F, and that is right downstream from the turbo

Transmision:

running great, good shifts. solid power transfer. whistling sound.

I have been paying allot of attention to the tranmission - maybe too much since I am paranoid. Trans Temperatures at 120F upstream from a B&M oil cooler.
I do notice a "whistling" in the transmission that increases in pitch as engine speed increases. Since I wasn't really paying attention prior to the re-power, whether it was there or not, I do not know - I am original owner and truck currently has 60,000 on the drivetrain. The workshop manual states that "intermittant power with whining sound" is caused by either low fluid or restricted filter. I have full power, but this whining (It sounds more like a whistle to me) sound is definetely there. Fluid level is good. When I did the repower, I did change the tranmission fluid, but not the filter. I have read on discoweb and d-90 boards that the cleaning properties of new fluid loosen up some "old stuff" an can all of a sudden restrict the filter. I am going to change the filter this weekend (I just soaked those cross member bolts with Blaster) and see if it goes away.
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  #296  
Old May 10th, 2006, 11:16 PM
artm
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Arthur Maravelis
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Two points:

1. Reading EGT before the turbo is preferred. That's my setup and I can get to 1000F on any real hill (300Tdi). Your 600F reading is not the true temp the motor is experiencing.

2. That temp for the auto tranny is awfully low. I think it should be 175-185 as a minimum.
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  #297  
Old May 11th, 2006, 06:18 AM
Michael
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Michael
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Quote:
Originally Posted by artm
Two points:

1. Reading EGT before the turbo is preferred. That's my setup and I can get to 1000F on any real hill (300Tdi). Your 600F reading is not the true temp the motor is experiencing.

2. That temp for the auto tranny is awfully low. I think it should be 175-185 as a minimum.
Thanks artm

1. I would have liked to place the EGT probe prior to turbo, but didn't want to drill a hole in the manifold. Where exactly is the probe on your's?

2. I haven't driven more than 15 miles on any one trip. How long does it take for fluid to reach that temperature.
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  #298  
Old May 11th, 2006, 07:40 AM
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George Kase
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before the turbo?

can others confirm this? my GMC has the probe after the turbo...
George
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  #299  
Old May 11th, 2006, 08:39 AM
Michael
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Michael
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update of update

Thanks Luis C. and Matt from Overland Engineering.
I checked for the sound while in park, and the whistle is still there! As you explained, it is the turbo.
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  #300  
Old May 11th, 2006, 11:48 AM
artm
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Arthur Maravelis
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Bellow are pics of my setup. It's an ISSPRO gauge and thermocouple. I had EGR in mine (now removed) which made it easy to install - just fab up a plate and bolt it where the EGR was. The control module is the green box on the bulkhead. I only need to wrap the wiring with some protective cover. Even drilling into the manifold isn't a big deal. Slow and steady...

As for the tranny temp, it should be up to normal with 15 minutes of driving - assuming the outside temp isn't too cold.
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