Damp air cleaner filter.

Submitted: Thursday, Jan 15, 2004 at 16:19
ThreadID: 9776 Views:1676 Replies:5 FollowUps:6
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G'day all,
Recently my son travelled from Darwin to Central Q'land in his 92 Toyota t/back diesel. While doing an oil and filter change after arrival he found that the air filter was damp. When he left Darwin it rained heavily for the first 600k's or so.
He had, previous to this, had the air ram head, but after it was stolen he fitted the round type head (don't know what you call them).
I have just fitted an Airtec snorkle to my HJ 75 2H for a proposed trip to Bathurst Bay in August.
So the questions are,
1. Is this a problem with the round head.
2. Where does the water go if you are driving in heavy rain with both types of head.
As usual i await your replies with baited breath.
Bros.
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Reply By: Rob H - Thursday, Jan 15, 2004 at 16:23

Thursday, Jan 15, 2004 at 16:23
I'm guessing the damp was not a direct result of the rain.

We live in Darwin, and over Christmas when we had all the rain, all our clothes, sheets, soft furnishings were damp to the touch - it's an unfortunate fact of life during a monsoonal trough.

Of course, it depends how damp you are talking...
AnswerID: 43133

Follow Up By: Bros - Thursday, Jan 15, 2004 at 21:18

Thursday, Jan 15, 2004 at 21:18
Rob H, Thanks for the reply. Cheers Bros.
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FollowupID: 305481

Reply By: LBJ - Thursday, Jan 15, 2004 at 16:32

Thursday, Jan 15, 2004 at 16:32
hi bros, normally there should be a little valve on the bottom of the air cleaner box to let out any water that is sucked in or picke up by the snorkel. i would check to see if this is blocked first of all.......
AnswerID: 43135

Follow Up By: Bros - Thursday, Jan 15, 2004 at 21:17

Thursday, Jan 15, 2004 at 21:17
LBJ, The valve must be working as there was no water in the receptacle you speak of. Cheers Bros.
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FollowupID: 305479

Follow Up By: LBJ - Friday, Jan 16, 2004 at 10:15

Friday, Jan 16, 2004 at 10:15
so how damp/wet was it? is it possible that the top of the air box was not aligned properly allowing excessive moisture in.....?
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Follow Up By: Bros - Friday, Jan 16, 2004 at 23:07

Friday, Jan 16, 2004 at 23:07
LBJ,
I have checked the rubber flap on the bottom of the air box and found it workable and the top of the air box is aligned properly. Cheers Bros.
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FollowupID: 305588

Reply By: Matt M - Friday, Jan 16, 2004 at 00:36

Friday, Jan 16, 2004 at 00:36
Bros, if you look closely at the head of the Ram type Snorkel intakes they have a stepped edge on the inner circle that mates with the top of the tube. It is designed so that, any water passing though the front hits the back of the ram and then as it runs down will pass out the back through the edge without going down the tube!

Well thats what the designers say anyway, Im would assume a fair amount of water vapour would pass through just due to the inertia, hence the drain bung (ducks bum) at the bottom of most air cleaners! Plus Toyotas have a cyclonic filter arrangement that spins the air as it enters the filter, so any water or heavy particulate is thrown outwards and not allowed to make the turn into the filter. Again, utilising the drain at the bottom!
As said before, so they say!

The round head type are a precleaner type, very usefull in heavy dust, just look at a country Veh, the round precleaner is FULL of dust! So they must be good for that, otherwise that would be left entirely up to your filter to remove!

Hope that helped
MAtt.

AnswerID: 43198

Follow Up By: Bros - Friday, Jan 16, 2004 at 23:03

Friday, Jan 16, 2004 at 23:03
Matt M,
Yes there is a stepped edge around the base of the ram head and hopefully it does let the water out as you say. Many thanks, Bros.
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Reply By: donk - Friday, Jan 16, 2004 at 00:40

Friday, Jan 16, 2004 at 00:40
When i drive in heavy rain with my donaldson precleaner water does enter the dust collector bowl so i have drilled two 3mm approx holes in the lowest point of the collector bowl & the water drains out

1 hole is at the lowest point when stationary & the other is at the rear of the bowl when driving

Regards Don

AnswerID: 43199

Follow Up By: Bros - Friday, Jan 16, 2004 at 23:13

Friday, Jan 16, 2004 at 23:13
donk,
Thanks for your suggestion. On another forum one bloke fitted a ball valve arrangement and others just tape up the rubber flap if going through deep water. That is getting away from my original question but the answer is provided in this thread by Matt M about the raised section around the base of the ram head. Cheers Bros.
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FollowupID: 305589

Reply By: Scott_G - Friday, Jan 16, 2004 at 19:00

Friday, Jan 16, 2004 at 19:00
mate it is probably the wetness from behind his ears
AnswerID: 43266

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