Servicing your snorkel
Submitted: Friday, Sep 03, 2010 at 21:19
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Member - Murray R (VIC)
I,ve just serviced my ute and when I changed the air filter I noticed that it was damp. I removed the
snorkel head and found that all the
water drain holes were packed solid with bugs and mud. Hence with all the heavy rains we have had
water has gone into the air box. It might be another thing to check when doing a service. I,m thinking of fitting a cyclonic pre filter to the
snorkel as this would stop the
water and also stop the air box from filling up with bugs and hopfully give me longer air filter life. Has anyone else had this problem and who uses a pre filter head on their
snorkel.
Murray
Reply By: Dave(NSW) - Friday, Sep 03, 2010 at 21:31
Friday, Sep 03, 2010 at 21:31
Murray,
I use a 10" Donaldson pre filter and am very happy with it,Though originally I had an 8" one but it sounded like it was sucking air through a straw.
Cheers Dave..
AnswerID:
429311
Follow Up By: Member - Russler - Saturday, Sep 04, 2010 at 08:06
Saturday, Sep 04, 2010 at 08:06
Murray,
We use the smaller pre filter when traveling at slower speeds, to maintain the cyclonic action. But I agree with Dave above, when the speed picks up, the pre filter was limiting the air flow to the engine.
FollowupID:
700095
Follow Up By: Member - Murray R (VIC) - Monday, Sep 06, 2010 at 22:43
Monday, Sep 06, 2010 at 22:43
Dave
I see your patrol is 4.2 and that an 8 inch would not have sufficient air flow as you have said. My bravo is only 2.5 and I think that an 8 inch will be big enough so will give one ago as I can buy a light weight plastic one for the right price.
Murray
FollowupID:
700345
Follow Up By: howesy - Tuesday, Sep 07, 2010 at 21:42
Tuesday, Sep 07, 2010 at 21:42
I wont use anything but a donaldson converted to it ten years ago. * inch on the lux and 10 inch on the cruiser
FollowupID:
700404
Reply By: OREJAP - Friday, Sep 03, 2010 at 21:38
Friday, Sep 03, 2010 at 21:38
Have you checked your
snorkel for leaks? Block off the head with a rag...if the engine stalls it's air tight if it keeps running it is sucking air into the engine from somewhere.....not doing what it's made for. You would be surprised people take for granted that because they have a
snorkel fitted that it works perfectly. It could be an expensive mistake when you are attempting a
river crossing!!!
AnswerID:
429312
Follow Up By: Member - Murray R (VIC) - Friday, Sep 03, 2010 at 22:12
Friday, Sep 03, 2010 at 22:12
Orejap
I have on air leaks as I tested it with a smoke machine from air box end with head end blocked off all good. So I recon that
water was getting in due to blocked holes. Its a safari
snorkel and the drains are designed so that the rain hits the back of the scoop and runs down and out the holes.
Murray
FollowupID:
700070
Follow Up By: Member - MYPRADO - Friday, Sep 03, 2010 at 22:21
Friday, Sep 03, 2010 at 22:21
ARB just installed a safari
snorkel, please tell me where these drain holes are situated, pardon ignorance
FollowupID:
700072
Follow Up By: guzzi - Saturday, Sep 04, 2010 at 09:14
Saturday, Sep 04, 2010 at 09:14
Look at the head of the snorkle, you will notice slots in the head, the hose clamp covers these somewhat. These slots are your drain holes.
Cheers
FollowupID:
700107
Follow Up By: Member - Murray R (VIC) - Saturday, Sep 04, 2010 at 10:08
Saturday, Sep 04, 2010 at 10:08
Myprado
If you read the artical over veiw from OZ [the little box on the right]at the start of the thread , you will see a picture of were the drain holes are and how they work.
Murray
FollowupID:
700113
Follow Up By: Member - MYPRADO - Saturday, Sep 04, 2010 at 20:05
Saturday, Sep 04, 2010 at 20:05
Thanks guys have found it.
Cheers
FollowupID:
700142
Follow Up By: Member - Russler - Sunday, Sep 05, 2010 at 17:06
Sunday, Sep 05, 2010 at 17:06
OK, so I fess up. I assumed my
snorkel (Safari mounted on a 4.2TD GU Patrol) was the only way air was getting in, but I just tried OREJAP's test, and sure enough the engine kept running. Also based upon the feedback I checked the drainage slots, and sure enough the one at the back was full of damp dirt. Marvelous what we can learn from eachother. So now I need to find out where the air is getting in, bypassing the
snorkel. How easy is it to remove the
snorkel to check that the intermediate tube is sealed correctly?
FollowupID:
700202
Follow Up By: 98TAJ - Tuesday, Sep 07, 2010 at 08:02
Tuesday, Sep 07, 2010 at 08:02
Russler,
Getting my 4.2 ready for the cape and found the same issues with air getting in when I bagged off the snorkle head. Started taking off all the inner guarding to get at the snorkle tube, Hard and tedious exercise. Happened to check the seal under the lid of the air box only to find the seal had perished and part of it was missing. I tried to price a new seal only to find that you need genuine and you can only get the top with it, rough cost of $260, Found cheaper solution was to get a suitable sized pieced of vacuum hose and silastic this in it's place. Careful if you try the bag check again on the snorkle as this time it sucked the bag in and broken the insect screen on the inlet.
Regards
Terry
FollowupID:
700361
Follow Up By: Member - Russler - Tuesday, Sep 07, 2010 at 18:48
Tuesday, Sep 07, 2010 at 18:48
Thanks Terry, I'll check around there too. I was also advised that blocking the
snorkel head wasn't the smartest way to test it either, due to the risk of damaging seals due to the high suction of the 4.2/diesel motor.
FollowupID:
700385
Reply By: Member - Carl- Saturday, Sep 04, 2010 at 09:35
Saturday, Sep 04, 2010 at 09:35
You can use a foam called "ME10" as a pre filter to stop bugs etc. The ME is the type of foam and the number denotes the size of the holes in the foam. It is similar to "fish Filter foam" which is used for filtering the
water in fish tanks so you could use this in a pinch.
Clarke Rubber or a foam rubber
shop should carry it. If you are in a smaller town this fish filter foam will do. The main diference with the fish filter stuff is it does not contain chemicals that, you guessed it Kill the fish. So you can get it at most pet stores. Fish filter foam is sky blue.
ME10 foam is black and there are 2 other foams that are also black but they are not the same. So make sure the "salesperson" knows their stuff as most do not. The other 2 types are a bit shiny where ME is almost matt. The other two foams will ake a squeeky noise when you run your finger over the suface but ME will not.
Sometimes it is soaked in oil and used as a air filter in it's own right. Some chainsaws are lawn mower do this.
AnswerID:
429334
Follow Up By: OREJAP - Sunday, Sep 05, 2010 at 21:15
Sunday, Sep 05, 2010 at 21:15
Hi Carl, I am a bit skeptical with FOAM filters especially the type with a sticky solution applied to them. I feel they actual hamper air intake & therefore restrict the air required. I prefer the original filter the manufacturer supplied with the vehicle also, you may have seen people position the
snorkel head facing backwards I also believe that the
snorkel was not meant to be use in this way & that positioning the head opposite to the way it was meant to be also restricts air. ImHO
FollowupID:
700223
Follow Up By: Member - Murray R (VIC) - Monday, Sep 06, 2010 at 22:53
Monday, Sep 06, 2010 at 22:53
Carl
I'm with Orejaps thinking and I really like the idea of retaining the original filter and not adding an extra filter.I like your other suggestion about the mats under bed though in roof top tents that you made in another post.
Murray
FollowupID:
700347
Follow Up By: Member - Russler - Tuesday, Sep 07, 2010 at 18:51
Tuesday, Sep 07, 2010 at 18:51
Had a Hilux (circa 1996) before the Patrol, and when the
snorkel was installed it did include an additional filter. This got chucked pronto, because it become clogged with insects and therefore reduced the air flow.
FollowupID:
700386