DIY Snorkel Installation

NachaLuva

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Oct 27, 2011
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SE Melbourne
Following Mr Turbo's Snorkel Mod , $150 and you could be in the snorkel club! & Dedman’s $100 forester snorkel build, I decided it was time for digitus extractionem (to pull out my finger!) & take the snorkel out of the shed onto the Foz.

I purchased a NH-NK 90-97 Mitsi Pajero snorkel from eBay (~$120) & made up a template from it & carefully marked the main hole plus bolt holes on the guard. Check & recheck!
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NOTE:A better way would be to cut the main hole, bend the snorkel, THEN mark the bolt holes on the template as the holes' position changes as the snorkel changes shape

I used a HSS holesaw & cut out the hole in no time
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I then cut out a hole in the guard support panel & with a lot of filing got it right & smoothed it out. I then used rubber edging from Clark Rubber to cover the sharp metal edges & for a neat, professional look :biggrin:
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I used black neutral cure silicon to fully seal the airbox intake, both inside & out. Inside, I completely filled the gap between the inlet & the box but did it too high & it fouled on the filter. A quick trim with a knife fixed it
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Dedman was kindly able to help & together we set about bending the snorkel with my heat gun. It took a few bends in the main body: in the middle, at the front to bend the tip in towards the panel & at the elbow twisting the top in towards the roof. A twist about 6" from the elbow to get the bottom edge sitting better. We also twisted the top section around so the bracket sat in on the pillar. Just heat it till its too hot to touch, bend it & while holding it bent cool it with a wet rag. Put it on the panel & check for fitment. I had to keep filing out the bolt holes as the snorkel changed shape (see note above).

Holding it in place I then marked the top bracket on the pillar (check & recheck!) & drilled the holes. I put in a heap of silicon in each hole plus a bead around the edge of the bracket to stop water getting (definitely do NOT want rust in the pillar!) & used monel rivets.

I chose to bolt it up with the panel on the car but this was very difficult even with a ratcheting spanner. Probably a better way is to remove the panel, bolt it up, then refit the panel.

I used 3" Silicone Air Ducting
https://www.ebay.com.au/itm/76mm-3-...=AU_Car_Parts_Accessories&hash=item3a7cb13a83

& a Trident hose clamp to attach it to the snorkel outlet. Make sure you put the hose before you replace the panel! :iconwink:

I cut the end off the airbox inlet but kept one tube thingy to act as a water trap. I used some aquarium silicon air pump tubing, a 1-way check valve (I wanted water to flow out but not in) & siliconed an air tube connector to the tube
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You can just make out the silicone aquarium tube coming out the bottom of the black "S" shaped pipe.

I then cut the 3" hose to length & clamped it to the inlet. Done! :lildevil:
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Thats awsome, did you heat bend the snorkel or leave it as is?
 
Brilliant write up NachaLuva :yourock:
Well done & welcome to the snorkel club :bananatoast:

Regards
Mr Turbo
 
Looking good. Good to see the hard work paying off!
idw we used a heat gun to bend the snorkel which turned out to be perfect for the job. Much better than a blow torch.

Nachaluva do you get any intake noise with the snorkel?
 
Nice one Nachluva!!!

It looks awesome mate good job!

Will you be twisting the snorkel head so it sits level or are you happy with it leaning to the left?

Since you've got the heat gun it shouldn't be hard to do - I did it to mine and am pretty happy with it.

We need to catch up and compare snorkels :twisted:

Cheers

Bennie
 
The snorkel head doesnt really worry me being on an angle although I might get around to straightening it.

Yes has a nice throaty sound now, esp above 3500rpm :lildevil: I've also noticed a definite improvement in power. When I first took off I had to check it wasnt in LR lol :monkeydance:

The heat gun worked brilliantly. I didnt fill it with sand, the only time I noticed a prob was twisting the main section the concave inner surface sunk in a little more but that wont have affected the air flow much
 
Terrific write-up and end result, NL.

Looks a tad better than when I saw it the other day ... :poke: :ebiggrin: :biggrin:.
 
I was also meant to say in my last post - ballsy move mate! Cutting that hole is a HUGE step; I had a second guard to get everything wrong on first then cut my good one to fit the snorkel - I was still beside myself when I did it.

Here's my inner guard (finished today ;)):

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Surprisingly not a great deal of induction noise unless you're standing right beside it. And an interesting amount of "suck" when you open the throttle even just a little bit!

Loving it. Now, when do we go swimming?? :poke:

Cheers

Bennie
 
Yeah that first cut really is a hold-your-breath moment with no going back, no matter how many times you've measured, checked & rechecked lol :lol:
 
G'day NachaLuva,

Have you found any increase in fuel economy since the install? Your setup seems pretty conducive to a fairly unrestricted flow into the box (not contorted with pipes everywhere,etc)
 
Have you found any increase in fuel economy since the install? Your setup seems pretty conducive to a fairly unrestricted flow into the box (not contorted with pipes everywhere,etc)

I think economy may have increased a little but I've certainly noticed power is up. Not much, but noticeable.
 
I really need to get on to doing this! Every time I pull my airbox out I can see there has been water in there. Plus it just looks awesome. Well done NachaLuva.
 
UPDATE:

I havent fully immersed the engine yet...trying not to lol, but the snorkel is working out great.

I've driven through heavy rain a few times now. Doesnt seem to affect the paper air filter...no paper mache lol

Few notes:
1) cut the large hole in the guard then bend the snorkel to fit, then make a template from it to drill the other holes. This will be the neatest way of doing it. As the snorkel changes shape, the holes move so I had to mess around filing out the holes I'd so carefully done :(
2) remove the little steel holder thing that holds the stock intake pipe. It rubs on the hose & will put a hole in it
3) paint any metal edges with rust preventer paint, even if you use rubber edging.
4) use SS bolts on the snorkel up-pipe. The bolts that came with it started to rust almost immediately! Dont let the bolts rust into the pipe or you'll never get em out...
 
that's one hell of a good write up and looks like it was meant to be there :)

I fitted one on my jeep xj, fuel economy suffered till I turned the snorkel top backwards. this also stopped leaves and dust being sucked in so much. or a couple of friends bought the dome type you usually see on lard rovers :)
 
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