Testing Snorkels
Submitted: Tuesday, Aug 21, 2007 at 13:52
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Snowy 3.0iTD
Hello
I write the technical articles for my local club magazine, now I have heard that you can
test the seals on a
snorkel by placing a piece of plastic over the inlet and seeing if the engine stalls. Now before I put this in to an article, I wanted to
check if this could cause any problems with modern petrol and diesel engines?
Thanks in Advance
Snowy
Reply By: Mark Taylor - Tuesday, Aug 21, 2007 at 14:51
Tuesday, Aug 21, 2007 at 14:51
Sounds good.. but be careful.
A guy at Volvo in
Brisbane told me of a service manager in a Volvo Truck workshop in Scotland who had his "rug" sucked off his head, sent through the turbo, through the engine, through the turbo again and out the exhaust pipe.
Would have loved to see that!
I guess the filter would be your safety
gate in your case.
Cheers
Mark T
AnswerID:
258290
Follow Up By: Snowy 3.0iTD - Tuesday, Aug 21, 2007 at 14:56
Tuesday, Aug 21, 2007 at 14:56
Mark
I wasn't thinking so much of things getting sucked, I would stress to use a good quality heavy plastic, not a tatty shopping bag. But I more concerned if it would have any adverse effect on the turbo or engine computer. Plus I think a toupee would probably jam in the smaller engines found in 4WD's.
Regards
Snowy
FollowupID:
519567
Reply By: Member - Stephen F (VIC) - Tuesday, Aug 21, 2007 at 17:31
Tuesday, Aug 21, 2007 at 17:31
G'day Snowy.
Just thinking about the same thing today, i have recently removed my toyo original
snorkel because of a mounting issue.
I thought along the same lines as you with stalling the car, that lasted about 1 mili sec the next idea i had was to pressurise the
snorkel system the with the engine off of course. After checking with safari they recommend the pressure system.
As i don't have a compressor i will do the tried and tested method of she'll be right and have a few snatch straps ready for the first crossing.
Regards
Stephen
AnswerID:
258307
Reply By: Graeme - Tuesday, Aug 21, 2007 at 18:48
Tuesday, Aug 21, 2007 at 18:48
Most filter boxes have one or two water drains made from reasonably soft rubber. Blocking a
snorkel will induce sufficient suction pressure to invert the rubber bleed/s and break it/them.
Separately the suction will then draw on the seal on the oil coolant supply to the turbo.
Then if the rubber feed pipe from the air filter box to turbo/or to the manifold is relatively old you could potentially induce early failure due cracking.
Would need to place lots of caveats on such a piece of advice.
Pressurising the system to say 5psi would be a better method. Soap solution on the joints and
check for leaks, would be my recommendation.
AnswerID:
258322
Reply By: Member - Jiarna (NT) - Tuesday, Aug 21, 2007 at 19:57
Tuesday, Aug 21, 2007 at 19:57
1. Find deep water, preferably croc free.
2. Drive into water until it comes over bonnet
3. If engine goes BANG the
snorkel needs better sealing
4. Buy new engine and repeat procedure until you find and seal all the leaks (or run out of money)
AnswerID:
258353