Winter - Kit for the 4

[AX-O]

I have not been able to take a picture. I am sorry. I will not be around my aircraft until 21 Apr. Send me your phone number via a PM. I will call you.

[kjelle69]

I live in Northern Sweden so it would be an International call. :-/
Just wanted to bump up the question again, in case someone have a good tested solution it would be nice to see that.

[ArlingtonRV]

I know this is probably a stupid question and if it were this easy someone would have done it already, but why can't one simply remove the oil cooler from the oil circuit in the winter? Disconnect the line going into the cooler and connect it directly to the fitting going back into the engine and then cap off the oil cooler.

Like I said, there is probably some simple reason why this is a bad idea (and I haven't tried it on mine either), but it seems fairly simple.

[RogerG]

Wonder if something like this would work?

http://www.crracing.com/oil-cooler-bypass-valve

[CGVFR]

from what i understand of the oil system is :you do have the vernatherm
valve in the oil filter adapterbody that prevent the oil to go the oilcooler until it is required(when oil temp is high enough). basicaly by restriction the air to the oil cooler will not work if the remaining of the engine has to much of cold air. on cessna the cold weather kit do restrict the amount of cooling at cowling entry.

my rv4 stay on the ground below -10 deg C

Michel

[kjelle69]

Winter again, did not construct any blocking plates yet. Anyone who has some suggestion or pictures of a construction that blocks off enough without harming anything? Our C172 has winter kits in plastic that blocks off just about 1/3'd of the total intake area behind the prop. They are placed towards the center of the plane.

[ABRV4]

My oil cooler is mounted on the left rear baffle with a 2.38 inch diameter hole through the baffle for an inlet. I have a blocking plate on the front side of the baffle that is held in place by one pivot screw. I loosen the screw and pivot the plate over the inlet to block off some or all of the air flow to the cooler when the weather turns cold. Tightening the pivot screw holds the blocking plate in whatever position I want. Typical temperatures are in line with what others are posting with the engine running a little cooler than desired. Advantage - its simple. Disadvantage - I have to take the cowl off to make adjustments.
Alan
RV-4

[kjelle69]

I have already blocked off the oil cooler, what I would like to do is to block off the total amount of air that enters the cowling.

[F1R]

A few weeks ago VLAD posted a good photo and description of what he does.

The oil cooler even if air flow is blocked, will easily disperse heat and cool the oil unless you tape off BOTH FACES with aluminum foil or plates and silicone.

Just search for all threads from VLAD and you will see the photos.

I would be cautious about restricting the air intakes on a 4.

[kjelle69]

This is the Winterkit for C172

https://drive.google.com/file/d/0B1x...ew?usp=sharing

RV-4, is it possible to block off part of it safely ?

https://drive.google.com/file/d/0B1x...ew?usp=sharing