Threads on the 617 fuel filter banjo

[Mike Rancourt]

In my adventures of two tank WVO, I would love to remove the banjo from the top of the fuel filter in my '84 300D. I mean, I just want to take it out so there are only two holes in the stock filter, one in and one out. Then I'll just run the return through a 5/16"X1/8"X1/4" tee. This helps me isolate the diesel side from the veggie side.
Can anyone identify the threads on that? I don't know what to buy for it - I just know that it's not MPT.

[Magoo]

try this-
http://www.vegpower.com/order/prodpage.cfm?cat_selected=97&product_selected=204&startrow=1

[Biodiesel300TD]

Check out my setup. I have it plumbed so that the injector return and IP return go to a T which then goes to the return valve. Which then sends the veggie back to the veg tank, and the diesel goes back to the stock filter with the normal banjo bolt. This way I can still purge air out of the diesel system, like it normally does. I did have to plug one port on the banjo. Has been working like a dream for 4000 miles.
Here are more photos of my conversion if you are boared. - http://s35.photobucket.com/albums/d191/andrewlindgren/Veggie%20Conversion/. I had an aluminum tank made that mounts to the stock tank mounts, and has a tube welded into it for coolant, so there is no need for buying a heated fuel pickup like a HotFox of something.

[Mike Rancourt]

I found it. This is the bolt:
12-1.50 X 20 MM C/S 8.8 Bolt ($1.15 at Carquest)
No rerouting required. The banjo fitting still returns fuel normally, but the solid bolt keeps it separated from the filter, so I have my two tank system running directly through the top part of the banjo out to the 3-port return valve. This is a lot neater than what I had before, with lines dead-ending in a Tee, etc... It also knocks about $20 off the conversion system I am designing for a friend of a friend.
Thanks.

--'84 300D 19,000 veggie miles before the first time I bought fuel for that car (1.73 gal of biodiesel)

[Mattbob]

THis is quite the resurrection but here it goes...

I thought I had read that screwing with the banjo bolt was not necessary... a different way to do it, but all you need is the return going to a 3 way valve and the supply going to a 3-way valve. No?