doug748
Well-Known Member
I have finally got fed up with my dripping filter. Can anyone suggest a replacement? 20hp engine. prefilter/water separator, glass bowl, cheap replacement filters........must not leak! Thanks.
Which diesel prefilter?
- Thread starter doug748
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Csail
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vetus
2Tizwoz
Well-Known Member
Re: Which diesel prefilter
do you have that you don't like?
I find these OK and the replacement elements are fairly cheap
They're on ebay
do you have that you don't like?
I find these OK and the replacement elements are fairly cheap
They're on ebay
Poignard
Well-Known Member
Racor, obtainable from ASAP Supplies Ltd, Beccles.
gandy
Well-Known Member
Aren't Racor elements quite expensive? Compared to 2 quid each for CAV.
Stemar
Well-Known Member
CAV filters are dirt cheap, but IMHO, the aggro in changing them is worth paying a bit more for spin-on filters. I'd hate to have to change a cav filter in a hurry and a lumpy sea, which is when you're most likely to need an unscheduled change.
After having to come into Portsmouth with a dead engine a couple of weeks ago due to the crap in my tank being stirred up by a rough sea, I struggled for a couple of hours to persuade all the sealing rings in my CAV to seal properly & I still haven't got the stench of diesel out of the boat.
Plan A for this winter is a couple of transit or similar filter holders from a breakers plumbed in parallel so I can switch to the the other in a few seconds if the first one dies, and change a filter with one hand if I need to.
After having to come into Portsmouth with a dead engine a couple of weeks ago due to the crap in my tank being stirred up by a rough sea, I struggled for a couple of hours to persuade all the sealing rings in my CAV to seal properly & I still haven't got the stench of diesel out of the boat.
Plan A for this winter is a couple of transit or similar filter holders from a breakers plumbed in parallel so I can switch to the the other in a few seconds if the first one dies, and change a filter with one hand if I need to.
Poignard
Well-Known Member
Yes they are expensive but well worth it IMHO, for reasons given by Stemar.
Anyway the extra cost of one or two spread over a year doesn't amount to very much.
Anyway the extra cost of one or two spread over a year doesn't amount to very much.
doug748
Well-Known Member
Don,t like the sound of the CAV if I end up smeared in diesel. Roughly how much are the Racor replacement filters? (my Separ jobs last a long time, but they are sixteen quid!)
dickh
Well-Known Member
ASAP sell Spin-On filter kits to convert the CAV filter - about £38 from memory. They presumably then use a cheapish spin on filter.
robind
Well-Known Member
Racor are designed for long use with many hours! very few boat do the sort of hours that would require the replacement of a filter! unless the fuel is contaminated then what price to sort out ! I have two racors (large ones) and yes there are cheaper filter elements but I wouldn`t change mine for all the Diesel in china! I last purchased a pair of new elements at Beaulieu for a tenner! so buy a Racor and just keep an eye on the state of the element and don`t relace it because the engine manufacturer tells you to! wait until its necessary.
doug748
Well-Known Member
Iam now looking at the Racor Turbine 500, any votes in favour?
asj1
Well-Known Member
2 quid for a CAV element - I paid 93p at acommercial vehicle place on an industrial estate !
pvb
Well-Known Member
Waste of your money...
The Racor Turbine filter's centrifugal effect requires the larger fuel flow demanded by a big engine (and the filter's rated for over 200 litres an hour!). Unless you've put a seriously big engine in your Contessa, it'd be a complete waste of your money. If you can't be bothered with the minor inconvenience of changing CAV-type filters, why not get a small Racor Spin-On 120?
The Racor Turbine filter's centrifugal effect requires the larger fuel flow demanded by a big engine (and the filter's rated for over 200 litres an hour!). Unless you've put a seriously big engine in your Contessa, it'd be a complete waste of your money. If you can't be bothered with the minor inconvenience of changing CAV-type filters, why not get a small Racor Spin-On 120?
doug748
Well-Known Member
Re: Waste of your money...
So the choice is either go for a 200hp upgrade or the 120? .....Spin on 120 it is then, not a bad price at 60 quid either. Thanks everyone. Brian.
So the choice is either go for a 200hp upgrade or the 120? .....Spin on 120 it is then, not a bad price at 60 quid either. Thanks everyone. Brian.
bryantee
Well-Known Member
Re: Waste of your money...
get the small racor with the built in hand pump. If you happen to get a build up in the secondary filter or an air leak in the system ,the pump will keep the system primed.a useful get you home
addition.
get the small racor with the built in hand pump. If you happen to get a build up in the secondary filter or an air leak in the system ,the pump will keep the system primed.a useful get you home
addition.
KRG
Well-Known Member
Re: Waste of your money...
[ QUOTE ]
If you can't be bothered with the minor inconvenience of changing CAV-type filters
[/ QUOTE ]
I changed my CAV filter recently, it has the glass bowl under it. Is there a special knack to getting them to seal because I had a devil of a job and ended up re-using one of the old rubber seals? It was a genuine CAV boxed filter.
[ QUOTE ]
If you can't be bothered with the minor inconvenience of changing CAV-type filters
[/ QUOTE ]
I changed my CAV filter recently, it has the glass bowl under it. Is there a special knack to getting them to seal because I had a devil of a job and ended up re-using one of the old rubber seals? It was a genuine CAV boxed filter.
pvb
Well-Known Member
Re: Waste of your money...
With the glass bowl CAV filter, the big rubber sealing rings are 2 slightly different diameters. I think the one which goes in the top of the glass bowl is the larger one. Not all replacement filters are supplied with the correct-sized sealing rings.
With the glass bowl CAV filter, the big rubber sealing rings are 2 slightly different diameters. I think the one which goes in the top of the glass bowl is the larger one. Not all replacement filters are supplied with the correct-sized sealing rings.
jerryat
Well-Known Member
Re: Waste of your money...
Yep, you're quite correct. I found this problem (two rings the SAME size) with the Crossland filters for the CAV296 type earlier this year when I bought 6 for spares. Took 'em back and the retailer and me checked a few more boxes. Most had the two different sizes, so it may just have been a 'bad' batch.
Got the rings changed but it's well worth opening and checking when you buy them and save the hassle!!
Yep, you're quite correct. I found this problem (two rings the SAME size) with the Crossland filters for the CAV296 type earlier this year when I bought 6 for spares. Took 'em back and the retailer and me checked a few more boxes. Most had the two different sizes, so it may just have been a 'bad' batch.
Got the rings changed but it's well worth opening and checking when you buy them and save the hassle!!
Roberto
Well-Known Member
Re: Waste of your money...
IIRC there is also a third o ring, much smaller than the two others (say about 10mm diameter), which goes around a small metal pipe coming out of the filter head
Fleetguard filter (part FF167A replaces CAV296) usually come with the three rings (well sometimes they abound and one find six rings)
IIRC there is also a third o ring, much smaller than the two others (say about 10mm diameter), which goes around a small metal pipe coming out of the filter head
Fleetguard filter (part FF167A replaces CAV296) usually come with the three rings (well sometimes they abound and one find six rings)
KRG
Well-Known Member
Re: Waste of your money...
Ahh, that would be why, there were three rings, the two larger ones were the same size and one was just too big and kept leaving a small weep, I'll check my other spares. Good job I had the trusty disposable nappies under it whilst I did. I was also considering a different option not relishing having to do this on a lumpy sea.
Thanks
Ahh, that would be why, there were three rings, the two larger ones were the same size and one was just too big and kept leaving a small weep, I'll check my other spares. Good job I had the trusty disposable nappies under it whilst I did. I was also considering a different option not relishing having to do this on a lumpy sea.
Thanks