Cold weather oil indications

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rigpiggy
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Cold weather oil indications

Post by rigpiggy »

We had some issues with oil press indications in the cold, the first guy i flew with had several 206/185s. He used to fill the oil pressure tube with hydraulic fluid every fall.

I gots to tell ya it works like a hot damn, oil pressure within seconds, ask your ame if you have similar issues
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valleyboy
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Re: Cold weather oil indications

Post by valleyboy »

The good old days -- mention that now and most AME's will look at you if you had 2 heads -- simply put in this day of CYA, it's not legal. I wonder if external gauges mounted on the cowls is an approved mod :mrgreen:
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SuperchargedRS
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Re: Cold weather oil indications

Post by SuperchargedRS »

rigpiggy wrote:
Wed Jan 31, 2018 11:41 pm
We had some issues with oil press indications in the cold, the first guy i flew with had several 206/185s. He used to fill the oil pressure tube with hydraulic fluid every fall.

I gots to tell ya it works like a hot damn, oil pressure within seconds, ask your ame if you have similar issues

What kind of temps are we talking here?

I've had my 185 out to about -28c and never had that issue
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valleyboy
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Re: Cold weather oil indications

Post by valleyboy »

I've had my 185 out to about -28c and never had that issue
It usually happens with a cold soaked aircraft (stored outside and plugged in) between -30 and -40 (40 being the cut off point) - no problems with a hangared aircraft. The issue a lot of the times was to get oil pressure indication for the initial start in the morning or after sitting for a couple hours with raps on.
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Heliian
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Re: Cold weather oil indications

Post by Heliian »

Oil pressure should come alive withing 30 seconds of start.
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J31
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Re: Cold weather oil indications

Post by J31 »

Flew lots of 185, 206, 207 down to -40 and rarely any problems with multi-grade oils. However we did clean the oil lines out with varsol if there were problems. This would introduce fresh engine oil in the lines.
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rigpiggy
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Re: Cold weather oil indications

Post by rigpiggy »

The oil theat was pumped out of the lines in the hangar could only be decribed as "grease"
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rigpiggy
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Re: Cold weather oil indications

Post by rigpiggy »

That and we are in a twin. The oil lines are about 8' long, all but about 2' is in unheated spaces
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