VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => IDI Engine => Topic started by: allsierra123 on September 12, 2008, 04:27:26 pm
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Just curious what set up I should be looking at on my vanagon conversion from gas to diesel?
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you can use a diesel filter mount from a mk2 and run that or mk1s have a adapter plate and screw on filter(very cool)
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ANy idea what size the fuel lines are. I have seen some nice racor water seperator units that have built in heaters. But it looked as if they were for larger fuel lines.
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you can always step down on sizes... i'd use the racor! very good filters. i wouldn't spend more than $50 though... as vw filters are only $10 or so.
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I seem to remember Giles sells some nice filters. Check out the thread in the vendor section.
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you can buy a proper oil filter relocation filter housing and run an oil filter with a low mic count.Ive seen the housings on ebay for 30 dollars.I run one of those along with the stock filter.oil filters are cheap!fuel filters not so cheap.I think you wanna be down to 5 microns or less,i dont know.
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I've used Racors on several VW's and they were great.
You can find the A1 spin-on assemblies for ~$5 at Junk yards, and filters are pretty cheap ($7) A2 filters are ~ $20.
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I will probably end up using the racor. They look like a great product.
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From a post I made a while back...
For a cheap, easy, and effective diesel fuel filter get a Perma-Cool Fuel Filter and Water Separator Kit from Summit for $40. (http://store.summitracing.com/partdetail.asp?autofilter=1&part=PRM%2D81794) and some 5/16" x 1/2" NPT hose barbs. You can bolt the filter head to the firewall / inner fender. Best part is when it comes time to change out the filter, the head is threaded the same as Caterpillar Filter Number 1R-0750, One of CATs 2 micron "Advanced Efficiency" Fuel Filters (http://www.cat.com/cda/layout?m=37438&x=7).
(http://www.ziptar.com/VW/permacool.jpg)
Cat dealers generally get $12-$16 for them so cheap easy replacements and nice clean fuel to boot. CAT uses those filters on everything up to D9s and D10s, It never had a problem keeping up with my little Ol' TDI even when it was sucking VegOil. :wink:
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i'm very interested in that setup :) but wouldn't the filter have more resistance, and need a lift pump?
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Well, I don't see it next to the OE filter, but I'd guess it has more surface area looking at the size of things. That may offset the fact that it has finer filtration. The only way to know for sure is put a vac. gauge on the injection pump inlet and compare new OE filter readings to new CAT filter readings.
I like the idea of a low pressure lift pump, even though I know the timing is affected. I don't think it would be much if you had a 3psi lift pump, though.
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Does the CAT filter have a drain on the bottom of it?
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The nice thing about the racor is it has a priming pump. And a drain on the bottom.
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For a little VW the Cat Filter wouldn't be more restrictive, the applications that CAT uses them are as the only filter or as a secondary filter are huge, think D9 and D10, in other words, giant thirsty engines like the 3208 / 3408. The CAT filters are popular with the Duramaxx guys also, so a 1.6L or 1.9L VW with a VE is no match. :P
That being said, there is a second Part# 1R-0749, that also fits the PermaCool Heads and is massive, I doubt you'd be able to find the space to fit one in the engine compartment of a VW. I used to use one as the final filter on my VegOil Tank. I built my setup to filter in steps as I filled the car, I had a 100 micron stainless steel screen on intake pipe, 30 micron filter, then a 10 micron GoldenRod, and finally the 2 micron CAT 1R-0749, it is giant. The whole setup flowed well enough to use with the rotary pump to do Vegoil fill ups in 8 minutes or so with ambient (75F) Vegoil.
My 03 TDI didn't have a lift pump, it never had issue flowing enough fuel through the CAT filter even with 100% Vegoil on a Cold (for Florida, 50F) morning.
(http://www.ziptar.com/vw/filters.jpg)
There is a PermaCool filter sitting on top of the tank, you can get an idea of the size in relation to the 1R-0750 filter.
There is a PDF from CAT that has allot of details about the HE filters and their construction, here. (http://ohe.cat.com/cda/files/309297/7/pehp9522_01.pdf)
They are also designed so that very cold gelled fuel still flows. As for the bottom drain, I read a second hand "unofficial" post on the GM Diesel forums a couple of years ago that according to a CAT "expert" certain filters have no drains by design. The reason was because in some applications, these filters are the secondary and a higher micron primary filter has a drain and it was expected most water would end up there and also that based on the design of the filter and the change interval, it was expected that not allot of water would collect if the filter was the primary.
If you want a drain, Caterpillar Primary Filter/Water Separator Part # 175-2949 is for you, it also fits the PermaCool heads, however, it only filters to 10 microns.
(http://www.ziptar.com/vw/175-2949.jpg)
If you want to go nuts, you could do as CAT does in some applications and have two filters, a 175-2949 as a primary and a 1R-0750 as a secondary.
I posted a detailed thread to the GM-Diesel Forum (http://www.gm-diesel.com/diesel/vbull/showthread.php?t=15406) a while back, when I had the 79 Chevy with the Olds 5.7L Diesel 350 in it. I even made up a cross reference for other brands. Lots of info.
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You absolutely want a water seperator drain at the bottom of any single filter setup you use. I use the stock VW filter on my Caravan diesel conversion. You have to watch what they are selling you, the Murry's Auto filter (Fram) does not have the water drain.
Autozone p/n FF760 @ $7.79 does have one.
https://www.autozone.com/R,1778967/vehicleId,1211202/initialAction,partProductDetail/store,2165/partType,00540/shopping/partProductDetail.htm
It appears to be of good quality. I do have a low pressure electronic lift pump that free flows when off. I used it to prime the filter and lines when I first installed it. It has a separate switch so I can select it when needed. Howfully it will only be when I change filters.
I was going to use a Ford Escort Diesel filter assemby because it has a hand primer pump, but neither Murry's nor Autozone could get that filter.
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You have to watch what they are selling you, the Murry's Auto filter (Fram) does not have the water drain.
Guess so, my FRAM has a nice big one.
(http://lh4.ggpht.com/myeternalmedia/SM60wxKqTDI/AAAAAAAABM4/Id0jD1_WQp0/s800/water_seperator.jpg)
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how often do most people drain that?
like what's a good measure of time to do that if its a daily driver.
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Good quality but at what micron does it filter?
Opps! Double post.
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You absolutely want a water seperator drain at the bottom of any single filter setup you use. I use the stock VW filter on my Caravan diesel conversion. You have to watch what they are selling you, the Murry's Auto filter (Fram) does not have the water drain.
Autozone p/n FF760 @ $7.79 does have one.
https://www.autozone.com/R,1778967/vehicleId,1211202/initialAction,partProductDetail/store,2165/partType,00540/shopping/partProductDetail.htm
It appears to be of good quality. I do have a low pressure electronic lift pump that free flows when off. I used it to prime the filter and lines when I first installed it. It has a separate switch so I can select it when needed. Howfully it will only be when I change filters.
I was going to use a Ford Escort Diesel filter assemby because it has a hand primer pump, but neither Murry's nor Autozone could get that filter.
Good filter?
Wonder what the mircon rating is?
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Did someone say filtration?
top left are 10 micron
bottom left 2 micron
Big ass filter is a 2 micron with water probe and drain port.
White setup is a 30 micron marine grade with water drain
Other filter setup is a 10 micron unit with drain.
Look at the size of that big 2 micron!
(http://i239.photobucket.com/albums/ff120/subsonic44/DSCN0637.jpg)
(http://i239.photobucket.com/albums/ff120/subsonic44/DSCN0640.jpg)
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That looks just like the setup im looking at.
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WOW !! I really like that 2 mic Racor ! How much are the filters and how much is the setup ?
I See your Fram P8043 has a water drain. Great ! They Fram filter photo in the Murry's Auto ordering system did not how it with a drain, but a flat bottom. I wounder if they simply have the wrong photo, or Fram is phasing out the water drain. How long ago did you get the P8043 ? I was at both shops 2 weeks ago and neither stock the filter so both have "Pay now and we'll special order" for you.
I really like the Racor water sensor light. The only time I have ever had water showup in any of the 400,000 diesel miles I've done was in the winter and then only when fueling at a typical consumer "gas station".
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The ones we sell at the shop can be customized to exactly what you need
http://vwdiesel.net/phpBB/viewtopic.php?t=14836
How much are those racor setups worth? I like the retro brown :)
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I have seen them on e bay for about $120 out the door. They are a good bit cheaper than what you linked.