Exhaust Springs
- Biggles
- Pilot in Command
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Exhaust Springs
Did a few circuits this morning an after the 5th touch and go I noticed a spring flapping in the wind. Anyway that put an end todays aerial antics. On inspection two springs had broke since the preflight inspection (she has been standing for a couple of months) this might be due to rust. I checked the springs and yesterday I wire brushed them as there was a surface coating of rust. So where can i get a new suite of springs for the exhaust? Will be in Cape Town and Pretoria before flying again so places in both areas applicable.
Trike pilot
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- Slabfish
- Nothing beats flying
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I put silicone on my springs to stop vibration and so far after about 6 hrs all are still in tact . Usually Iwould have to replace at least one of the springs after 5 or 6 hrs flying
. I hope this works in the long run.

Clem Slabbert from FAPX
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- John Young
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Aikona my baas ...
Aikona my baas - she’s either an exhaust spring or not in about 0.001 of a second – hence the safety wires.skybound ® wrote:... whereas the mild ones will show you some warnings?

Regards
John ex-CIB
Re: Aikona my baas ...
Propellor food.John Young wrote:Aikona my baas - she’s either an exhaust spring or not in about 0.001 of a second – hence the safety wires.![]()

Have had one or two that become 'flattened' on the attachment point over a period of time. With stainless perhaps the flattening will occur on the exhaust side of the attachment point which in the long run could be a bit more work than replacing a spring.
Just asking what the downside is to stainless. There is always a con somewhere.
The harder metal will always wear first. When I first put s/s springs on I was told that the normal springs anneal from the heat and then take on the shape that it is streched to hence holding the exhaust in the desired position - one opinion. S/S can handle more heat and will hold the tension for much longer - my opinion.
ZS WOA (Meisie Ferguson)
Ploegskaar No. 1
Ploegskaar No. 1
Harder will wear first.
That is why you can sharpen a knife on a leather strop.
That is why a knife edge will dull very quickly if you cut paper, same for scissors.
Try asking your wife for her dess making scissors to cut a few paper gaskets in the garage, she will tell you in no uncertain terms to "Go Away"
(Mine always did)
Yet Tin snips will stay sharp for a long time while cutting sheet metal.
Kind regards,
Gunter Rostek
That is why you can sharpen a knife on a leather strop.
That is why a knife edge will dull very quickly if you cut paper, same for scissors.
Try asking your wife for her dess making scissors to cut a few paper gaskets in the garage, she will tell you in no uncertain terms to "Go Away"
(Mine always did)
Yet Tin snips will stay sharp for a long time while cutting sheet metal.
Kind regards,
Gunter Rostek
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