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Author Topic: is a z1 m-tdi  (Read 9416 times)

February 06, 2014, 05:51:48 pm

audilvr

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is a z1 m-tdi
« on: February 06, 2014, 05:51:48 pm »
as it says, is a z1 a m-tdi or just a early tdi?



Reply #1February 06, 2014, 06:04:26 pm

rbremiller

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Re: is a z1 m-tdi
« Reply #1 on: February 06, 2014, 06:04:26 pm »
 1Z is an engine block code for a VW TDI diesel engine used from approximately 1992-1997. m-tdi refers to a mechanically controlled injection pump on a an engine that originally had an electronically controlled injection pump. No electronics, with a throttle cable to the pump. The 1Z engine is often used for an m-tdi "conversion".
'91 180k Audi 80Q mTDI DD AHU, K14, LT pump,
http://www.motorgeek.com/viewtopic.php?t=45645
'99 Jetta TDI 204k '02 engine, RC3+E, 11mm IP, .216, Racepipe, 2.5''SS exhaust, PD Lift pump,  Boostvalve, PanzerPlate, boost gauge, MAF delete.
'89 Audi 80Q ...waiting
'85 BMW R80

Reply #2February 06, 2014, 08:16:45 pm

theman53

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Re: is a z1 m-tdi
« Reply #2 on: February 06, 2014, 08:16:45 pm »
I think the proper way to say is the 1z, AHU, even the ALH were mechanically injected, but they had electronic governor control.

To go to "Mtdi" usually means going away from all electronics except the fuel cut off 12v wire to the pump.

Reply #3February 06, 2014, 09:01:06 pm

rbremiller

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Re: is a z1 m-tdi
« Reply #3 on: February 06, 2014, 09:01:06 pm »
You seem to argue this point every time it comes up. You think it's the PROPER WAY? It's semantics. Please leave my post alone alone. Injection pump describes a mechanical device. Both are pumps. One has electronic controls, one has mechanical controls. If you've taken them apart & serviced both types, you'd understand this. If the OP understands what I'm saying you don't have to add anything. You want to see yourself be right. Please leave it alone already. C'mon. :)
'91 180k Audi 80Q mTDI DD AHU, K14, LT pump,
http://www.motorgeek.com/viewtopic.php?t=45645
'99 Jetta TDI 204k '02 engine, RC3+E, 11mm IP, .216, Racepipe, 2.5''SS exhaust, PD Lift pump,  Boostvalve, PanzerPlate, boost gauge, MAF delete.
'89 Audi 80Q ...waiting
'85 BMW R80

Reply #4February 06, 2014, 10:36:04 pm

vanbcguy

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Re:
« Reply #4 on: February 06, 2014, 10:36:04 pm »
Yelling at the moderator... *slow clap*

More information is always good.

Sent from my HTC One XL using Tapatalk
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #5February 06, 2014, 11:32:50 pm

8v-of-fury!

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Re: is a z1 m-tdi
« Reply #5 on: February 06, 2014, 11:32:50 pm »
You seem to argue this point every time it comes up. You think it's the PROPER WAY? It's semantics. Please leave my post alone alone. Injection pump describes a mechanical device. Both are pumps. One has electronic controls, one has mechanical controls. If you've taken them apart & serviced both types, you'd understand this. If the OP understands what I'm saying you don't have to add anything. You want to see yourself be right. Please leave it alone already. C'mon. :)

^^ You are right in every way ^^

It is the easiest thing in the world to convert 1Z/AHU engines to M-TDI. ALH not so much, unless you ditch the VNT turbo.. which as I am concerned is horrible at making power anyhow. It was an emissions device when conceived, and still is. Waste gate turbo's make more power with less issue.

Reply #6February 07, 2014, 08:51:10 am

theman53

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Re: is a z1 m-tdi
« Reply #6 on: February 07, 2014, 08:51:10 am »
Not that the vortex is the best source for much of anything diesel but

http://forums.vwvortex.com/showthread.php?5925343-ALH-or-MTDI

Read post #11...exactly the same thing I was saying. "1Z, AHU, ALH, even PD engines are not electronic injection. They are mechanically injected, look it up. Common rail? now that is different, those engines ARE electronically injected. Not an easy task to make an ALH a Common Rail."---8v of fury from the vortex.

Quote
You seem to argue this point every time it comes up. You think it's the PROPER WAY? It's semantics. Please leave my post alone alone. Injection pump describes a mechanical device. Both are pumps. One has electronic controls, one has mechanical controls. If you've taken them apart & serviced both types, you'd understand this. If the OP understands what I'm saying you don't have to add anything. You want to see yourself be right. Please leave it alone already. C'mon. Smiley

I don't know exactly what you are trying to achieve here? I don't see this as an intelligent post, but correct me if I am wrong. I said "mechanically injected, but they had electronic governor control" you said "One has electronic controls, one has mechanical controls." --- I don't see a difference? I have been in a few pumps, I get it.  Also, I did not touch your post, edit, or misconstrue in any way, so I don't know what you are implying there.  And again, I would like always be right, so yes, I would like to see myself as being right. ---I don't see an issue.
    Bottom line is I have no clue why you posted what you posted for any reason.

Reply #7February 07, 2014, 09:00:39 am

theman53

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Re: is a z1 m-tdi
« Reply #7 on: February 07, 2014, 09:00:39 am »
as it says, is a z1 a m-tdi or just a early tdi?

What exactly are you wanting to know? If you are thinking can I run it without the factory ECU, then no, not as is.

Reply #8February 07, 2014, 11:25:19 am

audilvr

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Re: is a z1 m-tdi
« Reply #8 on: February 07, 2014, 11:25:19 am »
I'm picking up a z1 and an ahu this weekend. one of them is going in this gti shell.
http://www.vwdiesel.net/forum/index.php?topic=34378.0
I'm completely new to tdi's and was hoping the z1 pump was a m pump. I kind of figured it wasn't but it was worth asking. i'll just have to convert one, I know where I can get a 1.9 pump and I have several 1.6 pumps so I should be able to put something together. just wishful thinking and blind hope to think it might have already been done I guess.

Reply #9February 07, 2014, 10:49:02 pm

CrazyAndy

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Re: is a z1 m-tdi
« Reply #9 on: February 07, 2014, 10:49:02 pm »
Well there are folks on here who have converted their own pumps; just ask and they can provide a good parts list to help easily convert your 1Z pump to cable control if you want to stick with the pump you currently have.  As for other pumps, the land rover LR 300 is a popular option, with relatively little modification besides delivery valve swap, boring out your pump mount bracket for the pump nose, and using an ALH sprocket, but the trick is locating one as they were never sodl here in the states or Canada IIRC.  Cummins 4bt is right out as a bolt-in, due to needing modification of internal advance mechanisms for working properly with a VW motor.  IDK if the original 1989 Audi TDI pumps might be viable, since I don't know of they were cable-operated; have a feeling they weren't.  Sorry if I'm no help.


Reply #10February 08, 2014, 02:14:44 pm

audilvr

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Re: is a z1 m-tdi
« Reply #10 on: February 08, 2014, 02:14:44 pm »
doesn't matter for now, he sold them out from under me.

Reply #11February 08, 2014, 03:06:20 pm

bajacalal

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Re: is a z1 m-tdi
« Reply #11 on: February 08, 2014, 03:06:20 pm »
I'm picking up a z1 and an ahu this weekend. one of them is going in this gti shell.
http://www.vwdiesel.net/forum/index.php?topic=34378.0
I'm completely new to tdi's and was hoping the z1 pump was a m pump. I kind of figured it wasn't but it was worth asking. i'll just have to convert one, I know where I can get a 1.9 pump and I have several 1.6 pumps so I should be able to put something together. just wishful thinking and blind hope to think it might have already been done I guess.

I don't think VW ever sold a turbocharged, direct injected diesel engine without electronic engine controls.

Reply #12February 08, 2014, 03:22:01 pm

libbydiesel

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Re: is a z1 m-tdi
« Reply #12 on: February 08, 2014, 03:22:01 pm »
Yes, they did, but not in North America.  The LT28 was a stock mechanical VW TDI and although I haven't owned one, I have heard that the pump is a total bolt-on for the AHU with 12mm plunger.  The pumps are quite rare.

Reply #13February 08, 2014, 07:59:39 pm

CrazyAndy

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Re: is a z1 m-tdi
« Reply #13 on: February 08, 2014, 07:59:39 pm »
Yes but isn't the LT28 a 6-cylinder?  Not an instant bolt-on for our states-bound 4 cylinders, but you could swap the guts in, which isn't much of an obstacle if audilvr has no qualms with doing that.


Reply #14February 08, 2014, 08:41:26 pm

libbydiesel

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Re: is a z1 m-tdi
« Reply #14 on: February 08, 2014, 08:41:26 pm »
Nope.  LT28 had an inline-4 2.8L TDI engine.