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Discussion Starter #1
First post so.......here it goes.


By search in the archives, I found some answers but I'm confused about some things.


I own a 95 turbo diesel and lift pumps problems have always been THE number one problem.After much reading, I've decided to order a Racor 445 filter to eliminate the lift pump problem (each one lasted about 25000 km).


Before the purchase, there are some unanswered questions;


-Is the 445 suitable for a stock 6.5td ?


-Does the Racor 445 have an integrated pump (can I kiss the lift pump goodbye) ?


-Should I go with the 2, 10 or 30 microns filter ?


Thanks.


P.S. Hope you don't have to read twice,
I rarely write in english.
 

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The 445 has a hand priming pump which is not needed. We use 645 on the 6.5TD and I have installed them before the lift pump with good success. You would use a 2 or 10 micron element. I have one going out tomorrow to a customer with a 10 micron on it. By putting the filter before the lift pump you will extend the life of the pump. My last pump last about 75K miles.





Greg
 

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whats the price on one of those outfits?
 

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Depends on what you want on it. Without heater is $115, with heater $155, with water sensor $155 and with water sensor and heater$210.





Greg
 

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Add another $32 or so for the vac switch which in IMO is needed to let you know when the filter needs changing.
 

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ok let me ask the stupid question where can you get them at and so more info
 

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I have just order a Racor w/heater to put on the line before the lift. Where can you get a vacum switch to place on the line between the lift and the Racor? Who makes them?
 

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Several vendors out there can get the switch (Racor pn RK20163) set for 7" Hg, do a google search for Racor for vendors, I think Greg at www.lubespecialist.com sells Racor products, also I think John www.kennedydiesel.com and Bill Heath. I got mine at go2marine they had a clearance special that could not be beat last year, make sure when you order from non TDPL advertisers that the filter you need is for a DIESEL and not a GAS engine, both use same filt body but different elements. Switch seen on outlet of filter is where I'll hook up one leg of a 12v LED to alert me when I need to change filter.


More info on Racor filts here http://www.parker.com/racor/pdf/Section01.pdfEdited by: Turbine Doc

Does it work ? Yup see here http://www.dieselplace.com/forum/showthread.php?t=23716
 

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Thanks! I did not realize Racor sold them. I will have to try to locate one.


Question: How do they work ... do they send an electric signal when triggered or are they a visual guage on the line or filter?
 

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I'll eventually rig mine to a red 12v LED I mounted in my gage pod; upon filt block at 7"Hg it closes switch and lites the lite, I guess you could rig it to a buzzer if you want,.


Any 12v source of power that comes on with the ign switch will do; you are just using the vac switch to break the juice to the LED unless filt gets blocked then the LED comes on.


1 leg of LED to pwr, and 2nd leg to switch which will carry gnd to frame upon switch close, check with meter body of switch to truck frame for continuity, if you use teflon tape or pipe dope you may have to put a dedicated gnd to the switch body for the circuit to work correctly.


Racor also sells a vac gage kit, go to the acessories section in the PDF file link all available accesories are there pages 80-85 IIRC.Edited by: Turbine Doc
 

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How are ya' TD? I understand you're not too far from the Gulf. Is everything o.k.?
 

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Yes been a bit busy these parts, it was headed to my doorstep which is 100 yds from the Gulf, up until the last hour when it turned East, we went for high ground in Jackson MS prior to it getting here. Not too much damage more nuisance than severe damage, lost power for a few days, couple of small trees went down on the house easy, minor damage to us here, friends across the bay did not fare so well.


East Mobile &; East of that looks like A bomb went off in a couple of places. We dodged another one this time, one of the hazzards of living on the Gulf Coast not a matter of if a storm is coming but when and how bad.
 

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Discussion Starter #13
Thanks for the responses, but that brings me to more interrogations.


-LanduytG, if I decide to go with the 645 model like you did, can the oem lift pump act has a priming pump or do I have to order one from Racor ? The 445 model has a integrated priming pump.....is this a gadget that can lead to future trouble. I don't quite see the difference between the 445 and the 645 models.


-Is the 200w heating element standard with the 445 enough for the Montreal winter or would I be better with the 645 and a 300w element ?


I'll just finish by saying that I've learned a great deal from all of you, by reading on this forum of great quality.


Thanks again for your much needed help.
 

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Dan 445 has integral priming bulb, 645 is same without the priming bulb, correctly functioning lift pump will pull thru the element by itself, since you have a heater on the OEM bowl, I'm guessing the 200W element would be sufficient, but probably best for you to check with RACOR direct, they have a tech line you can call for specific info.
 

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Turbine Doc said:
I rigged mine to a red 12v LED I mounted in my gage pod; upon filt block at 7"Hg it closes switch and lites the lite, I guess you could rig it to a buzzer if you want,.


Any 12v source of power that comes on with the ign switch will do; you are just using the vac switch to break the juice to the LED unless filt gets blocked then the LED comes on.


1 leg of LED to pwr, and 2nd leg to switch which will carry gnd to frame upon switch close, check with meter body of switch to truck frame for continuity, if you use teflon tape or pipe dope you may have to put a dedicated gnd to the switch body for the circuit to work correctly.


Racor also sells a vac gage kit, go to the acessories section in the PDF file link all available accesories are there pages 80-85 IIRC.

Turbine Doc,


Where is the switch installed I think it would be in the input to the filter from the tank (in a pre-lift pump install)


I have a 445 on my truck pre lift pump with a 30 micron filter on it and a heater. It really keeps my stock filter much cleaner!!!


CareyEdited by: Carey Weber
 

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I went with Racors recommendation of where to install a vac gage on outlet of filter see pg 83 of PDF file link above, I figured probably same place for the switch, I'm even thinking of a 2nd switch for outlet of OEM filter, I run a 20 micron element in mine, been in for a year still no high DP yet.


I put a tee in the filter outlet one leg to the pump 2nd leg of tee for the switchEdited by: Turbine Doc
 

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Discussion Starter #17
I wrote to Racor's technical service concerning my questions, here is the letter that I sent them.....


I have difficulty choosing a fuel filter and would like more informations regarding the model 445 and 645.


The application would be for a 1995 Chevrolet 6.5 Turbo diesel. The filter assembly will be installed before the lift pump.


My questions are;


- What are the differences between the 2 models other then the integrated priming pump on the 445 model ?


- Should I get a 2 or 10 micron filter ? Is there a clogging risk with the 2 micron ?


- If I opt for the 645 model, can the lift pump act as the priming pump ?


- I live in Montreal, how many watts is needeed for the bowl heater ?


- Does the electric heater work on top of the glow plugs system at ignition ? Won't it be to much for the batteries ?


- I have read that a vacuum switch helps determining when to change the filter ? Do I assume it rigth ?


- Can I buy the filter directly from you or do you have distributors in the Montreal region ?


Thank you for answering my many questions.


The reply......


The 645 has 5 ports the 445 has 4 ports. primary systems should have a 10 0r 30 mic. a secondary system should have a 2 mic. 2 mic tends to clog faster. the lift pump should be able to prime your unit. 12v draws 16.6 amps the 24v draws 8.3 amps.the htrs. are thermostatically controlled on at 45f and off at 85f. a gauge helps determine when the filter is plugging. you have to go thru a distributor. cadel in montreal 514-331-4616.


Two questions remain; -the number of watts required for the filter to heat the fuel properly in this region.


-are the batteries capable of taking the load of the glow plugs and the fuel heater at the same time, won't it damage the starter in the long run.


Thanks again to all.


Daniel
 

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Daniel Simard said:
I wrote to Racor's technical service concerning my questions, here is the letter that I sent them.....


I have difficulty choosing a fuel filter and would like more informations regarding the model 445 and 645.


The application would be for a 1995 Chevrolet 6.5 Turbo diesel. The filter assembly will be installed before the lift pump.


My questions are;


- What are the differences between the 2 models other then the integrated priming pump on the 445 model ?


- Should I get a 2 or 10 micron filter ? Is there a clogging risk with the 2 micron ?


- If I opt for the 645 model, can the lift pump act as the priming pump ?


- I live in Montreal, how many watts is needeed for the bowl heater ?


- Does the electric heater work on top of the glow plugs system at ignition ? Won't it be to much for the batteries ?


- I have read that a vacuum switch helps determining when to change the filter ? Do I assume it rigth ?


- Can I buy the filter directly from you or do you have distributors in the Montreal region ?


Thank you for answering my many questions.


The reply......


The 645 has 5 ports the 445 has 4 ports. primary systems should have a 10 0r 30 mic. a secondary system should have a 2 mic. 2 mic tends to clog faster. the lift pump should be able to prime your unit. 12v draws 16.6 amps the 24v draws 8.3 amps.the htrs. are thermostatically controlled on at 45f and off at 85f. a gauge helps determine when the filter is plugging. you have to go thru a distributor. cadel in montreal 514-331-4616.


Two questions remain; -the number of watts required for the filter to heat the fuel properly in this region.


-are the batteries capable of taking the load of the glow plugs and the fuel heater at the same time, won't it damage the starter in the long run.


Thanks again to all.


Daniel

Daniel,


I run my heater on my 445 off a relay and have never had a issue with the glow plugs and heater running at the same time.


CareyEdited by: Carey Weber
 

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Carey Weber said:
Daniel,


I run my heater on my 445 off a relay and have never had a issue with the glow plugs and heater running at the same time.


Carey

why run a heater at all. I lived in Alaska for 13 years driving a 6.2 and during which times we saw -40 below almost yearly and as cold as -70 below I never had any fuel heater besides the factory ones. Oh course we ran #1 winter diesel fuel too.


just trying to see if I am missing something hereEdited by: bowtie
 

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Daniel,


Since the heater can be added at any time; IIRC it is sandwiched between the head & filter, or maybe filter & bottom, buy a filter assy that can accept the heater later, try it without the heater, if you have waxing problems you can upgrade at a later date, remember the on engine fuel filter already has a heating element in it may be overkill with 2, something to consider, especially if running anti gel additive as well
 
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