Franken-TD for an '84 Coupe: Like i need another hole in my build thread

[TimpanogosSlim]

All my probes are Sensor Connection as well. You'll have no issue getting a new ferrule from them - great guys - good stuff as well.

Well it's sort of a moot point because i discovered that i've bent the compression fitting, so i'm going to just order another.

I drilled and tapped another hole, so my probe will enter the manifold at a 45 degree angle with the end near the center of the inlet to the turbine. I'll plug the other hole with an alloy steel plug. I hope i haven't just doomed my manifold to crack.

I should be clear that i do want a vane pump, i just have some financial trickiness right now which i hope to resolve within a few weeks.

Anyway. I fitted the IP today. This is the 1.6TD IP i got in trade for the Rover pump i found.

I am unsure what the deal is with the fuel fittings.

The fitting for the return line from the injectors is obvious due to it's size. What bugs me is that there are two larger barbs, plus a banjo fitting with nothing attached to it?!

As circled poorly in red:

[vanbcguy]

That's an odd looking pump... Never seen an LDA like that now have I ever seen that fuel supply configuration.

Can you take a picture from the injection line end of the pump? I see something else I'm having a hard time making out.

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[TimpanogosSlim]

Yeah i can't seem to find one like it with google image search. I got this from nwcali6. He said was running it on a 1.6 in his jeep and that it has an AAZ cam plate in it, 9mm plunger.

I'll take some more pictures tomorrow, since it's late at night now and the pump and engine are at a friend's house.

[TimpanogosSlim]

I will say, the sprocket off my 1.6 bolted right up. but the control linkage is different from, well, all the other setups I've seen. linear rather than coil spring for return for example.

[theman53]

I would guess the bottom right is the fuel return and the other connects to a missing inlet banjo...if it is like other VE pumps. I personally would take off the pipe from the LDA and just run a normal banjo to the inlet. Looks like no pump I have ever seen on a VW stock

[TimpanogosSlim]

High quality pics here: https://plus.google.com/115750060043260405034/posts/MKimup2PcZB

[TimpanogosSlim]

Looks like I can get an m12 double banjo bolt easily, and just add the nipple fitting from my NA pump and block off the third superfluous nipple?

[vanbcguy]

I do believe what you've got there is an NA pump that someone has put an LDA top on from a different non-vw pump. You're missing the idle bump lever that should be connected to the cold start and that LDA / accelerator lever are definitely not VW. I'm somewhat suspecting that they may not even be Bosch - there are some pumps out there made under license usually in the Asian market that are functionally identical but have some differences.

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[TimpanogosSlim]

well the pump body is bosch and has vw/audi marks.

But yeah. the top is weird and has no maker marks, and is missing the 2nd mount point for the VW linkage bracket. though the metal is there so i can drill and tap.

How scary is it to take the lid off of one of these?

Story of this whole build. Try to do something cleverly and get bitten by weirdness.

[TimpanogosSlim]

OK, my LDA lid looks like it might be from a Zexel pump off of a Mitsubishi turbo diesel.

The lock wire on one of the screws is crimped with a tag that has a bosch logo, too.

the lid simply doesn't have the features to let me attach the VW style linkage. I'll have to work out what to do about that.

[theman53]

I am guessing but is the bottom right red circle the fuel return to the tank?

[TimpanogosSlim]

I am guessing but is the bottom right red circle the fuel return to the tank?

Well, considering that my pump has a banjo plug where the open banjo fitting is hovering, it looks like i need to remove that plug and install the inlet fitting from my NA pump w/ a double bolt.

So the largest of the two shown (3 total, 3 sizes) on the right must be return to tank, and the smallest must be returns from injectors, and the third one is just a genetic defect.

Best idea might be to grind it off and weld over the hole? *shrug*

[TimpanogosSlim]

Any thoughts on the needlessly complex yet seemingly incomplete cold start linkage?



That pin in the lower left looks like it's supposed to have a tension spring attached? Ah, or maybe a retaining clip for a lever of some sort.

[TimpanogosSlim]

Also, ladedruckabhängiger? Seriously? Germans, man . . .

[TimpanogosSlim]

ebay seller 'chevotalandcruiser' has a variety of m12 double-banjo bolts. Not bad pricing. need to check the TPI on the bolt single bolt or the plug. This would allow me to keep using the crazy fuel line attached to my frankenpump. for whatever that is worth.

The other option is another single banjo bolt and chop off the arm of the line that reaches from the return double-banjo-with-tee with it's unknown function. But i think i will choose the path of least fabrication, and just delete the superfluous 3rd nipple on that thing. There are a number of options, from cut & weld, to crimp cut & weld, to cut & tap & thread in a screw w/ sealant.

I can either steal the inlet banjo from my NA pump or buy another. This one looks likely:

http://www.ebay.com/itm/161317997045

on the other hand, selling a re-sealed NA pump w/o the inlet banjo fitting isn't a major deal because potential buyers likely have a leaky pump, right? which they can take the banjo fitting from.

Any clues what the solenoid on the LDA is for?