Engine Specific Info and Questions > mTDI Mechanical TDI Conversions
M-tdi on AFN engine in Golf 1
LucasMolen:
Hello, my name is Lucas. I'm from the netherlands and drive a (currently) 1100cc petrol powered Golf MK1. Because of the way road taxes here work and the amount of km I need to drive next year, I want to swap in a 1.9 TDI engine.
I have been offered a 1.9L 110hp AFN engine which came straight out of a Jetta 1, so they fit the Mk1 chassis already. Plus it's dirt cheap.
Aside from if the Engine is good, I would like to ask about my possibilities. I would like to go m-tdi because the harness and ecu are gone with this engine. Plus it adds a certain amount of 'period correctnes' to the car.
As I read in the sticky threads that there are a couple of difficulties with controlling the standard turbo. Is this correct? Will changing to a waste gate operated turbo solve this issue?
Can someone give me advice about what pump to use? I read about an elusive pump from a VW LT 2.8L that nobody seems to be able to find, or a Land Rover 300 tdi pump. Could you give me advice for this specific engine?
Thank you in advance!
vanbcguy:
The LR pump is the easy way to go for sure. There's still some work involved but it's a pretty good match to the engine "out of the box" so to speak. To use one you need:
- machine the opening in the pump mount bracket larger as the Rover pump has a larger snout
- swap the delivery valves on the pump with ones off a VW pump
- get a pump hub and sprocket from a Mk4 car (ALH is the engine code here but might be different there) - it's a two piece sprocket which is adjusted to set the timing.
Yes, it is much easier to run a wastegate turbo. You can use the VNT but it is a ton of work.
Sent from my LG-H873 using Tapatalk
LucasMolen:
--- Quote from: vanbcguy on July 14, 2017, 03:25:29 am ---The LR pump is the easy way to go for sure. There's still some work involved but it's a pretty good match to the engine "out of the box" so to speak. To use one you need:
- machine the opening in the pump mount bracket larger as the Rover pump has a larger snout
- swap the delivery valves on the pump with ones off a VW pump
- get a pump hub and sprocket from a Mk4 car (ALH is the engine code here but might be different there) - it's a two piece sprocket which is adjusted to set the timing.
Yes, it is much easier to run a wastegate turbo. You can use the VNT but it is a ton of work.
Sent from my LG-H873 using Tapatalk
--- End quote ---
I just found this website yesterday because a friend on a dutch forum told me to look for diesel info here and I have to say that I love this community already. From what I found up to now the amount of helpfulness and discussion without resulting in a swearing match is amazing.
Can you recommend a specific turbo to match the engine and pump? I am still reading all the stuf that might be considered 'basics' by your standards, but I'm trying to learn quickly. My budget isn't extremely big, so I would like to match the parts as good as possible from the start. If I understand correctly, a turbo with internal wastegate would be easiest, is that correct?
I researched a bit here and it seems the ALH engine is used in a lot of cars of that generation here as wel (golf 4, polo, bora, caddy). So that shouldn't be a problem to source. I'll have to translate pump hub and sprocket to something someone here could understand. Technical lingo is often hard to translate if you aren't educated in the car field. :P
Can the delivery valves be used from the AFN pump, or do they have to come from another engine/pump?
Would I be able to at least het the stock hp/tq numbers?
To be clear, my goal is to get the most bang for my buck. I don't really have power numbers I want to hit. I just want it to be as smooth as possible and be as fuel efficient as possible with the mechanical setup.
If I can get more power with a similar investment (for example if multiple possible turbo's are about the same price) I'll obviously go for more power.
Thank you for the help!
BGA:
"pump hub and sprocket"? as vanbcguy says " it's a two piece sprocket which is adjusted to set the timing" .
On older VAG engines you set timing by turning the hole pump - its mounted in long holes. On ALH pump is fixed and timing is set by turning the hub relativ to the spocket (the part that timing belt is running on). The spocket has the long holes.
My Translater says hub = naaf, sprocket = tandwiel
Go for the ALH. The older 1,5 .1,6 and 1,9 are built in the same way. With the ALH you dont have the intermediate shaft with the problems associated with that (bearings).
vanbcguy. "- swap the delivery valves on the pump with ones off a VW pump" Why? Should I do it on my AHU with LT 2,8 pump too?
BGA:
A pic of my AHU, LT2,8 pump and ALH hub/sprocket.
Navigation
[0] Message Index
[#] Next page
Go to full version