Anyone found a 100% bolt-on MTDI pump yet?

[blackdogvan]

We've had good luck with these.

http://www.advancedautomotion.com/product_info.php?cPath=66_132&products_id=109

I think I just found the answer to my wanting to put a ALH in my bus. 

Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.

[diesel smoke]

Link?

[blackdogvan]

www.westyventures.com/parts.html

[diesel smoke]

Sweet. Thanks. Now I wonder if my bus' transmission will hate me from all the torque. Still would have to re-gear it... or maybe a trans from a diesel Vanagon would fit if I changed the nose cone and bell housing. I do know that they are different from the air cooled bus ones.

[westyventures]

The LT 2.8 pumps work pretty well, but the biggest issue is the 'low-smoke' throttle/governor setup - it holds back fueling until rpms and boost come up. I'm running one of those on my 'test rig' and another one a customer's van. In his, I had to lighten the tiny spring in the lever assy. to get it to respond. You 'could' replace the lever assy. with the standard type and get around the issue. This pump does have a nice advance setup. The 4BT pumps I build don't have the low-smoke governor but take me a little more work to dial in timing. I have about 25 new 4BT pumps to build, plus five of another non-aneroid type I've started putting together that really work super in 10mm form.

Tranny: the diesel van tranny has no advantage, the newer trannies are better but all need taller 3rd and 4th for the TDI.

[diesel smoke]

But aren't the diesel Vanagon transmissions already geared lower than the gas ones? So then why would I need to swap gears?

[westyventures]

But aren't the diesel Vanagon transmissions already geared lower than the gas ones? So then why would I need to swap gears?

They are geared much lower - you'll need much higher or 'taller' gearing than the gasser for a TDI. I normally gear customer TDI vans 10-20% taller than the gasser gearing, depending on the diameter of the tires to be used.

[diesel smoke]

But aren't the diesel Vanagon transmissions already geared taller than the gas ones making them a perfect match to the TDI?

[blackdogvan]

But aren't the diesel Vanagon transmissions already geared taller than the gas ones making them a perfect match to the TDI?

I think you have it backwards, lower gearing in this case means higher rpm. We van diesel folk with some hp need higher/taller gearing to drop the rpm to a better cruising range.

The original diesel vans sold in canada & the US was a 1.6 natural, something like 50hp.... they needed the low gearing to climb a railway grade! (1%)

[diesel smoke]

  Haha! Come on, you know what I meant.  If that is the case, perhaps I'll find someone locally who can rebuild my transmission with the taller 3rd and 4th to work with the TDI. Anyone know what set of gears I should get and from where?

Hey Vince, Do you know how to rebuild transmissions? 

[blackdogvan]

The LT 2.8 pumps work pretty well, but the biggest issue is the 'low-smoke' throttle/governor setup - it holds back fueling until rpms and boost come up. I'm running one of those on my 'test rig' and another one a customer's van. In his, I had to lighten the tiny spring in the lever assy. to get it to respond. You 'could' replace the lever assy. with the standard type and get around the issue. This pump does have a nice advance setup. The 4BT pumps I build don't have the low-smoke governor but take me a little more work to dial in timing. I have about 25 new 4BT pumps to build, plus five of another non-aneroid type I've started putting together that really work super in 10mm form.

Tranny: the diesel van tranny has no advantage, the newer trannies are better but all need taller 3rd and 4th for the TDI.

Care to share a bit on these pumps Karl? Not the internal setup & part numbers, just a little more detail on their makeup & operation?? No Boost fueling or a differnt style of boost fueling??

[westyventures]

Care to share a bit on these pumps Karl? Not the internal setup & part numbers, just a little more detail on their makeup & operation?? No Boost fueling or a differnt style of boost fueling??

These are NA pumps, German Bosch, came on some sort of diesel generator as they had a really low setting on the throttle arm and 8mm plunger. However, they do have a 20mm shaft! The aneroid on a TD pump doesn't supply more fuel, more accurately it is a fuel limiter. As boost pressure rises, the aneroid acts to allow more throttle movement internally. These pumps work really well because there is basically no limitation. The stock turbo spools so quickly that a limiter on the fueling is not needed. I use a TDI camplate, timing bits, and pump head, and throttle shaft/lever/spring for the LT pump. At first I doubted it would work well, but a customer asked me to test it on his van, which has a basically stock AHU but with PP520 nozzles. The previous pump was one of the Ohio-built 1.6NA-TDI hybrid pumps. This one has tons of power over that one and is very quiet. Hope I can nail it like that on the next five of the same pump that I bought.

[scottmandu]

Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.

That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!

[westyventures]

That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!

My pumps are the same price regardless of 10-11-12mm. If you'd like to buy new, un-modified German 12mm pumps (not the LT, but 4BT) I'll sell you a few at 600.

[blackdogvan]

Nothing against those LT pumps or the vendor but Karl's pumps are cheaper, are tested on and i believe setup for our engines and come with the correct pulley setup for your engine (1Z/AHU or ALH). For that snack bracket cost wise its where i'd be spending my money.

That's not really a fair comparison, the LT pumps have the larger 12mm pump head capable of supporting much larger nozzles than the smaller 10mm and 11mm pump heads. New the Bosch 12mm pump heads are half the cost of the entire pump!

How the heck isn't that a fair comparison??

I don't want to come across as having a man crush on Karl or his pumps but they have the same 12mm head, are cheaper, have been mounted on a 1.9 & adjusted for a 1.9, come with the correct sprocket and bolt right in.