Cav filter questions

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

Bryan,

Are you going to share you car converssion steps with us? Please - That would be great and helpful for all of us.


Cheers,

Fitian

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Cav filter questions

I have another Cav related question.

I'm presently working out where to put a temperature sensor in my conversion design. Someone recently suggested that I put my temperature sensor in the head of my filter, as it is the last component before my valve. Can this be done with a cav? I don't really understand the concept.

Cheers

Bryan

Bryan,
The CAV pattern Filter head has 5 ports, 2 are fuel inlet ports and 2 fuel outlet ports. The other can be used as an air bleed/return line conection.
I believe that you could put a temperature sensor in one of the unused ports of the Filter Head. It may be best to use a fuel outlet port, to minimise errors sue to cold fuel entering the filter dropping the indicated temperature. You would need to check the sender thread size and possibly use an adaptor to match it.

Are you heating the filter, or heating the oil before the filter?

If you are heating before the filter, then you will have a filter of cold oil which would pass to the IP before heated oil was available.
I use a HE after the fuel selection valve, to ensure that all fuel is heated. Heating of biodiesel is not an issue.
I have only once added diesel to my MB 300Ds, when I couldn't get biodiesel for a week or so. The amount of veggie oil returning to the diesel tank would provide adequate lubrication for the IP with heated diesel anyway.
Regards,
Tony

[Urvey Member Find all posts View Profile Close Urvey]

Re: Cav filter questions

Fitian,

That's a good idea, I'll start a new thread and show my progress.

Tony,

My FPHE is before my 'coolant wrapped' filter. I will also have HOH the length of my line. Where are people buying their temperature sensors from? I would like one with a thread.

Cheers

Bryan

[tbird650 Senior Member Find all posts View Profile Close tbird650]

Re: Cav filter questions

Multimeter QM1521 from Jaycar Electronics
Comes with temp thermocouple sensor. $19.95
Looks like the one I have except mine's yellow. Surprisingly accurate and sensitive even when clipped to the outside of injector pipe or fuel line.
The leads may want extending to suit your application.
I see no reason why the sensor could not be epoxy'd into a brass fitting if need be ........though clipped externally is quite satisfactory.
Hope this helps.
Tbird

[gwalker Senior Member Find all posts View Profile Close gwalker]

Re: Cav filter questions

Supercheap has what looks like a CAV filter today advertised at $59.99.
'Marine Fuel Filter' The image shows a Ryco R2132P filter attached with a glass bowl at the bottom. Brochure page 21 - PUL127751

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

Supercheap has what looks like a CAV filter today advertised at $59.99.
'Marine Fuel Filter' The image shows a Ryco R2132P filter attached with a glass bowl at the bottom. Brochure page 21 - PUL127751

I have used Ryco R2132P element and had to changed within two weeks to a fleet guard element. I almost forgotten that I have a CAV filter since. Try Item number: 150053611458 on e-bay. I bought mine from them.

Cheers,

Fitian

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Cav filter questions

Fitian,
Do you have the specifications for the Fleetguard element as well as the Ryco and Delphi? If not, can you get them so that we can all see them and decide for ourselves the differences anbd perhaps why your Fleetguard has not had problems.
Where do you get the Fleetguard elements from?

[colvan Biofuels Forum Newbie Find all posts View Profile Close colvan]

Re: Cav filter questions

I'm mid WVO conversion of a late 90's hiace.

I've found the cheapest glass bowl CAV filter assemblies are those made by Bareco and can be sourced from most agricultural parts stockists for little over $47 inc GST plus freight. Mine came with a Delphi element.

http://www.bareco.com.au/files/filters/un7.htm

I then picked up 3/8in barbed fuel fittings to suit for $4 each from a local specialist fittings shop. These were difficult to find as most fittings shops only seem to stock air fittings.

Also, I've found Fleetgaurd FF167A cartridges are cheapest when sourced direct from Cummins. The two I picked up cost $5 each.



My conversion is almost complete; only waiting on a pollak 6 port to arrive from the US as the Melbourne stockist is out and isn't expecting their next shipment until late Jan.

Oh yeah... as this is my first post, I want to thank all those that have contributed to make this forum what it is. I'm confident going into this conversion because of it. Cheers!

Colvan

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

Fitian,
Do you have the specifications for the Fleetguard element as well as the Ryco and Delphi? If not, can you get them so that we can all see them and decide for ourselves the differences anbd perhaps why your Fleetguard has not had problems.
Where do you get the Fleetguard elements from?

Next time I go to buy an element I will ask for a specifications sheet and post it. Also here is how I decided the difference ...
I started my converssion with the CAV filter fitted with the original Delphi element. It did not last more than a week and I started to experience starvation. I took the element out and bypassed the CAV and the problem is gone. I went to Supercheap and asked about the equivlant brand to Delphi and there was only Rycco it looked different to the Delphi too. I bought one and fitted it to the CAV filter. No more than ten days and same problem happened again. I then contacted a truck company near me and found Fleet guard elements. Since I fitted this element I had no dramas what so ever. I have used the same patch of oil from the start. Sharing my experience does not mean it is the final findings of course.

I am sure you have longer experience than most of us here Tony. What is your findings?

Fitian

[tbird650 Senior Member Find all posts View Profile Close tbird650]

Re: Cav filter questions

Since I fitted this element I had no dramas what so ever. I have used the same patch of oil from the start.

.....which can only mean:

1/ a higher micron rating
2/ a higher flow capacity (more paper surface area)
3/ or both of the above
4/ or the vege is more fat free than it was.....

I watch the subject with interest....

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

.....which can only mean:

1/ a higher micron rating
2/ a higher flow capacity (more paper surface area)
3/ or both of the above
4/ or the vege is more fat free than it was.....

I watch the subject with interest....

I filtered all my oil to 5 micron and kept it in jerry cans that had a valve at the bottom of them. which means I have always filled my tank with what is in the bottom first. I do not think the vegy oil has become fat free. Now I started to save the filtered oil in a 200 litre steel drum and pump out from the bottom. The Delphi element is exactly the same design as the fleet guard but I am not sure if they both have the same specs.

This is a great thread indeed.

Cheers,

Fitian

[gwalker Senior Member Find all posts View Profile Close gwalker]

Re: Cav filter questions

I read somewhere that Delphi was 2 microns and RYCO 5 microns, or the other way around.

Another possibility could have been the purging of your tank from the first load of bio clogging up you first 2 filters.
George

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

Another possibility could have been the purging of your tank from the first load of bio clogging up you first 2 filters.
George

I am not sure I understand what you mean. !!!

Normally switching from using Diesel to using Biodiesel requires fuel filter change in shorter times for the first couple of tanks. I no longer use petro diesel. Only Bio way before converting the car to run on WVO. So any return going to the CAV filter is bio. Return bio should not be that dirty should it?

Regards,

Fitian

[gwalker Senior Member Find all posts View Profile Close gwalker]

Re: Cav filter questions

I am not sure I understand what you mean. !!!

Normally switching from using Diesel to using Biodiesel requires fuel filter change in shorter times for the first couple of tanks. I no longer use petro diesel. Only Bio way before converting the car to run on WVO. So any return going to the CAV filter is bio. Return bio should not be that dirty should it?

Regards, Fitian

Sorry, I assumed you were converting from petro diesel to biodiesel and not from biodiesel to filtered WVO.
Your problem may be more related to the viscosity and flow oil temperature in your lines than just a specific filter type, but as mentioned earlier, all filters ain't equal.
George

[Fitian Was here Find all posts View Profile Close Fitian]

Re: Cav filter questions

Sorry, I assumed you were converting from petro diesel to biodiesel and not from biodiesel to filtered WVO.
Your problem may be more related to the viscosity and flow oil temperature in your lines than just a specific filter type, but as mentioned earlier, all filters ain't equal.
George

Hello George,
It is true all filters ain't equal. With WVO we have to either try and compare or take/go by someone elses experience. I tried three different brands and I am happy with Fleet guard so far. I also think the Bruce has got the same setup and happy with fleet guard too. In fact I copied my set from Bruce.

Regards,

Fitian