you have a bit of WVO in the HE ... it might take a few minutes to clear check you sight glass before the IP.. Omar
www.omarsales.com

MB T at water pump


foam and big hose clamp MB install

I got my system up and running today, however my temperature before the IP was only 100 F. I think that I need to reroute my system so that the FPHE is the last thing the oil passes through before the IP. I should be getting more like 160 F. I believe that in the short time I was running on veg oil, the engine did not have time to replace the oil that was in the filter with the hot oil from the FPHE. I'll play with it tomorrow and post back. I will also take some better pictures.

use a sight glass that has meatal hose fittings... do not us the plastic screw in type they will crack (I ran one for about 5k before the plastic ends cracked in half)
http://store.summitracing.com/default.asp?Ntt=fuel+filt...target=egnsearch.asp
You can buy the sight glass here or Autozone has them for about $10.
do not over tighten the glass itself it can crack .. (I have done that too) however make sure it is not leaking air some times they vibrate loose just enought for a small leak so check for drips ... good luck Omar
www.omarsales.com

I must be dense. I still don't see why you wouldn't have the FPHE before the fuel valve. WAY less vegoil to purge before shutting down.

Is there an advantage to having the FPHE downstream from the Pollak?

The only reason noted was concerns with heat and the Pollak valves, but they're rated for 180*.

What am I missing here?

quote:

Originally posted by jake palmer:
I must be dense. I still don't see why you wouldn't have the FPHE before the fuel valve. WAY less vegoil to purge before shutting down.

Is there an advantage to having the FPHE downstream from the Pollak?

The only reason noted was concerns with heat and the Pollak valves, but they're rated for 180*.

What am I missing here?

Jake,
What they may be concerned with, is the volume of vegoil in the FPHE, to be purged at shutdown.
Tony

The reason I would say don't have the diesel go thru the FPHE is because it may get the diesel too hot and reduce lubricity too much. My FPHE is only 12 plates and even in the winter (50 degrees) my VO is coming out of it at 135-140°F. If you're using a 16 or a 26 plate I would bet on 160-170°F. I thought hot diesel was bad for an IP?

Here is a WVO adventure for you to read I found it on this sight
http://www.frybrid.com/forum/showthread.php?t=3300
I know I shipped out about 55 plus HE so far and BK shipped a bunch so let hear some Road Test stories and send some photo's have a good sunday Omar
omarsales.com

cross from Bend OR.
First Long Trip


2600 miles 127gal. of Wvo 20gal. of diesel and one fuel filter. I took the Dodge from Bend, OR to Denver to pick up my new truck camper and then visited some friends. I left Bend and drove all day and stopped at a truck stop at around 3am in central WY. I passed out in the cab for a few hours. It was cold (about -15). I woke up and the truck started but it ran rough for the first few minutes. For the next hour I could not switch over to WVO. I could hardly get any heat in the cab for that matter. The news said it was anywhere from 10 to 20 below zero not including a wind chill. I stopped and made a home made winter front from cardboard and this helped a ton (although I thought I might lose a couple fingers in doing so.) I switched right over to VO and ran at temps of 150-155. These are about 10-15 deg colder than normal highway temps for me but still just fine. I made it to Denver in the morning dropped on the camper and was on my way to Loveland Pass for some Snowboarding. Above 9000ft I saw a slight loss in power on VO versus diesel. I don't ever notice it any other times though. The next morning it was very cold again. I put my camping stove under the engine bay for about 20 min. The truck started right up without even cycling the grid heater. I know some may not approve of this method but without a plug in or a webasto it's what I had to work with. I traveled to Park city for a couple of day's. When starting after a couple of day's sitting I tried something that Jeff on this board had brought up. In my new camper I have two Trojan deep cycle batteries and a inverter. I pluged the block heater into this and let it go for an hour. The truck started right up and off I went home. On the Oregon boarder I plugged a filter but since I was down to empty I switched to diesel and cruised into town.
I learned a lot about cold weather VO use on this trip. Had a lot off fun. Sorry about the rambling post but if someone learns something it's worth it.
Shawn

Heat Exchager any Problems?



Any problems with your Heat Exchanger? How was the powder at Loveland Pass? Sounds like another veggie adventure! O

Omar the HE saved my butt in WY. No problems with it except a little coolant leak at one of the fittings. I snugged it down some more and it's gone. The powder was OK but the boarding was still great. I did a full moon ski with a bunch of folks who just showed up where I was camping.
New2, I have a 55gal tank that takes up 11 inches of bed space. My camper is hanging out onto the tailgate 10 inches. I'm going to build a 45gal spare tire tank in the next month.
Shawn
__________________
95 Dodge 2500 running svo

quote:

Originally posted by B.K. Hosken:
The reason I would say don't have the diesel go thru the FPHE is because it may get the diesel too hot and reduce lubricity too much. My FPHE is only 12 plates and even in the winter (50 degrees) my VO is coming out of it at 135-140°F. If you're using a 16 or a 26 plate I would bet on 160-170°F. I thought hot diesel was bad for an IP?

I agree you shouldn't heat diesel too much. Especially if your blending with gasoline as it may cause a vapor lock.

Using a pollak fuel selector valve I have noticed that after the switch is thrown the actual fuel shange occurs over a period (10 seconds?) in which the fuels are blending and gradually change composition.

However, if worried about heat shock, it may be worth adding a small coolant heat exchanger AND have a less-than-robust injection pump, live in a very cold climate, are running oil that is very hot (say 160* F +) and would be switching from diesel that is very cold (say 0-30* F).

Although I already purchased the Pollak I am thinking about just using it to switch returns or just running looped return ( and spending more $ getting one of those Hydraforce industrial valves that can take the heat ( see - URL=http://biodiesel.infopop.cc/eve/forums/a/tpc/f/159605551/m/6961016131/r/3911013431#3911013431)]

quote:

Originally posted by B.K. Hosken:
The reason I would say don't have the diesel go thru the FPHE is because it may get the diesel too hot and reduce lubricity too much. My FPHE is only 12 plates and even in the winter (50 degrees) my VO is coming out of it at 135-140°F. If you're using a 16 or a 26 plate I would bet on 160-170°F. I thought hot diesel was bad for an IP?

BK,
While hot duesel has significantly reduced lubricity, the diesel will be blending with the vegoil in the FPHE and IP during the purge period. I do not have any figures to tell you how much vegoil is in the diesel after X seconds of purge, but you should be able to have tests done to determine the % vegoil in the diesel at the end of the purge time.
If you plan to do extended runs on diesel, I suggest adding 1-2% vegoil to the diesel tank or installing a ball valve i nthe coolant feed to the FPHE.

Here is another shot of my FPHE. It is hard to see, but if you look under the cruise control you can see it behind all of the hoses. I have rerouted the system to go Tank->HIH->Filter with coolant wrap->FPHE->Temp sender->IP. I now am getting 145-150 before the IP, but the temp is slow to build to that temp. I'm not sure why I am getting less heat out than others. The oil going into the FPHE is 100 and the coolant hoses leading to the FPHE are 175. I may have to add some 12V heat to the system.

This message has been edited. Last edited by: Shaun,

is your wvo system looped or do you run a return line back to the wvo tank? what is your coolant temp? Omar
www.omarsales.com

I am running a return to the tank. That could be the cause of the lower temperatures.

Tony - I am going to follow your recommendation of adding about 5% wvo in my diesel tank and putting in a coolant shutoff valve for the HE for extended diesel use. I am placing the pollack before the HE going with looped return .

Bryan if you have the time you might place a 3 way valve on your WVO return so you can loop your wvo return and see how much more heat you would get with a looped WVO return... just a thought ... good luck post some more photo's ... O
www.omarsales.com

Any new HE installs? Photo's & Data anyone? just checking Omar

2000K since flat plate heat exchanger installation in an '84 MB 300D. I have the modest goal of running on 50/50 here in Florida. Other than some clogged filters early on, this is going really well. The car likes its new diet. I have a great source of awesome oil right near work. All is well.

what's the temp. of the fuel before the ip? what is the temp of the weather out side? thank Omar