Outer Limits 4x4 Board

hey, just wondering, can you do without the hot air intake on the carby engine. I ask because on mine the pipe that goes to the thing around the exhaust mainifold to get hot air is just about stuffed, and i was also wondering what you do about this when you have a snorkel? can you do away with it and just block it off so it only gets cold air? or will the carby freeze up in winter or what?

Ps i live in the upper murray and its below zero on winter mornings if thats relevant
thanks

I used to live in Canberra when I first got my Zook. I had a long downhill run getting to work everyday and without the hot air pipe I would get carby ice on low throttle down the hill on winter mornings. I would have to pull over to the side of the road to let it warm up again before heading off. After fixing this and running the warm air from the exhaust it never had a problem. Obviously if you get these symptoms you need the warm air, if you don't then don't worry about it.

Bazooka wrote:I used to live in Canberra when I first got my Zook. I had a long downhill run getting to work everyday and without the hot air pipe I would get carby ice on low throttle down the hill on winter mornings. I would have to pull over to the side of the road to let it warm up again before heading off. After fixing this and running the warm air from the exhaust it never had a problem. Obviously if you get these symptoms you need the warm air, if you don't then don't worry about it.

I took mine off when I fitted the snorkle and have the same problem. On cold mornings/nights in melb mine would freeze up. It only really happens when im on the highway (80km/h+). In and around town it doesn't seem to be a problem. All other times its fine.
Eff

what we did with mine was we ran to the grill so u get cold air intake on the road and the n off road you flick it to the other

Lost mine when I fitted extractors. Car is a little slow to warm up at about 2 in the morning at the moment, but at least there is less clutter in the engine bay. BTW talking about 5 to 10 degrees C here, with a very cold wind blowing.

Dad's zuke doesn't have his either, but for some reason his doesn't like warming up much at all, so last winter he fixed a sheet a aluminium over half of the radiator, this kept it at normal summer operating temps.

well some morning here in winter its - 2 or 3 degrees, i spose i'll just give it a try, also during winter i'll be doing some snow driving.

I'll just see how it goes

I disconected the hot air intake and also diconected the vacume pipe on top of the air intake which stopes the flap inside lifting and restricting air flow, i also have a snorkel and in Melb winter it just takes a few min to warm up. Remember to tape up the hot air intake hole on the bottom of the air cleaner before playing submarine captain.

My zook hates cold air.

Itsuki Style wrote:well some morning here in winter its - 2 or 3 degrees, i spose i'll just give it a try, also during winter i'll be doing some snow driving.

I'll just see how it goes

You will want it working of your playing in the snow. I had issues with the carb icing up anything below about 2 degrees. Refitted the hose from the exhast and just slighty wedged open the hot air flap (gotta redo the vac lines .. the old ones wrer all perished and cracked) After refitting the hose I found myslef on the road down to melbourne at 4.30 am the outside temp was minus 5c ran like a champ all the way.


At low engine and road speedsyou might get away with it ... anything above 60 you will have probs I would say.

you could always just turn your snorkel head backwards that way the speed your traveling wont effect your carby icing up. also I think part of peoples problems is not just ice but with a snorkel when traveling over the speeds mentioned its possible to have your fuel/air mixture get way to lean and experience a power loss.

muppet_man67 wrote:you could always just turn your snorkel head backwards that way the speed your traveling wont effect your carby icing up. also I think part of peoples problems is not just ice but with a snorkel when traveling over the speeds mentioned its possible to have your fuel/air mixture get way to lean and experience a power loss.

Nope does not work. No matter what way you face the head the air will be the same temp and humidity.
I have had vehciles with and without snorkels, head on forward head on backward, snorkle disconnected same issue. Hot air pipe hooked up no more issue.

I see, thanks for all the feedback everyone. I might set it up so that its from the snorkel ALL the time, except i can manually change a thing so its warm air for when it gets really cold or in the snow.