mike mcs repair
Registered User
chugiak AK
even much later.... no oil 'pumps' to piston area... just slop and sling once thin ......
Winter Mods
- Thread starter akbou
- Start date
even much later.... no oil 'pumps' to piston area... just slop and sling once thin ......
Cub X
FRIEND
Winnipeg MB Canada
Back to the crank vent freezing problem, has anyone tried insulating the fitting between the case and where this whistle hole is cut. I have an issue where my C-85 crank seal starts to weap during winter operation. I tried the slit in the hose but i still got some weaping. I suspect it might be the 90 fitting right at the engine and am thinking of trying to insulating with some fire sleeve or something. Crank seal is dry all year otherwise so i suspect ice. Anyone else have this problem?
arcticairalaska
Registered User
Fairbanks, Alaska
mike mcs repair
Registered User
chugiak AK
This works well when operation outside temps are < 15 degrees. No approval. Keeps your engine in the optimum operating temperature range.View attachment 4290
thats like was on one of the old polar bear cubs i helped redo,
except you hinge that flap right onto edge of boot cowl, and have it controlled from inside cabin by a double cable push/pull cable... retracted position is it laying back on boot cowl sides... and another hinged flap for bottom of boot/cowl....
mvivion
SPONSOR
Bozeman,MT
That is a Cessna winter front kit. My experience with those is that they're pretty useless unless you are absolutely, positively going to be in COLD air ALL the time. And, they reduce cabin heat flow substantially as well. The only part of that kit that I'd install on a Cessna is the induction block off plate. Put some duct tape over the oil cooler, and go fly.
Arcticair showed a really good mod for Cubs. It really does help "organize" the flow of air through the cowl. That and moving the oil cooler from the front up to the rear baffle. Putting that oil cooler in the low pressure side of the cowl makes no sense at all when it comes to engine cooling.
MTV
Arcticair showed a really good mod for Cubs. It really does help "organize" the flow of air through the cowl. That and moving the oil cooler from the front up to the rear baffle. Putting that oil cooler in the low pressure side of the cowl makes no sense at all when it comes to engine cooling.
MTV
Speedo
FOUNDER
TN
Sound advice!
Steve Pierce
BENEFACTOR
Graham, TX
Use to maintain a pipeline patrol plane. They used pipe insulation on the crankcase vent from the elbow all the way down with an opening for the whistle slot.
courierguy
MEMBER
Inkom, Idaho
I leave the duct tape at home these days, for the plane I use a tape you can get at any plumbing house that sells to professional pump setters, it's called "pipe wrap tape", and it's intended use is securing the pump electrical cable to the drop pipe. It leaves NO residue, is 2" wide, black, sticks great, and is cheap, 1/3 of my oil cooler has some on it right now. I'm experimental so don't care as to legality....?! It sticks good to fabric also.
skywagon8a
MEMBER
SE Mass MA6
This is what Cessna supplied as part of the "winter kit" in addition to baffles as shown in post #62 above.
You can extend the breather fitting inside the engine case more. Braize on a 3" (I think) leg and it extends the fitting past where the crank is slinging all the oil into it. Will cut down oil loss alot if you haven't already done it.
Not a hack job. Its via service letter/instruction. I don't have the time to look it up or I would. If you can't find it call BJ Engines/Mad Mikes or probably any other alaska engine shop.
Start there, then pipe wrap the horizontal part of the tube. Should help.
Not a hack job. Its via service letter/instruction. I don't have the time to look it up or I would. If you can't find it call BJ Engines/Mad Mikes or probably any other alaska engine shop.
Start there, then pipe wrap the horizontal part of the tube. Should help.
cubdriver2
FRIEND
upstate NY
If you worm clamp the breather tube to the backside of the tailpipe the tailpipe heat will help to keep the breather from freezing.
Glenn
Glenn
Cub X
FRIEND
Winnipeg MB Canada
Interesting, this is something i will have to look at.
tempdoug, the fitting is pointing straight down.
cubdriver 2 that sounds like a good idea but not sure how close my vent comes to the exhaust. Have to check.
Seems to me that insulating the pipe is worth a shot and is an easy thing to try first.
cubdriver2
FRIEND
upstate NY
They are now saying to cap the end and drill a hole facing down, I'll look for the info.
Glenn
tophand
Registered User
Northwest South Dakota
Cub X
FRIEND
Winnipeg MB Canada
That does seem like a better idea, less chance of oil splashing in.
