BCW-High EGT

[Tobie]

During the first half hour of a two hour flight on Saturday one of my EGT's failed, at that stage both temperatures ran normal, then during the last half hour of the flight the remaining EGT started indicating higher temperatures, up to 1200deg especially during decent, it would go lower immediately if power is applied. On landing and closer inspection I noticed some oil on the front cylinder head cooling fins. All along the engine performed perfectly.

Just replaced carb rubber mounts, checked after landing all ok, carbs not running lean as all was perfect just prior, some oil on cylinder head not good sign to me.

Aerotrike with 503, 320 hours. Any ideas anybody what to start looking for? going to airfield evenings this week to start investigating cause, could it perhaps be a headgasket busy going?

[Tobie]

Turns out to be a cylinder head stud that has broken off just below the bolt on the cylinder head.

[Massimo]

A question. I do not have egt's on my Aquilla 582 but it seems most people use them and they seems to be very usefull.

How, no actually who can install these for me and would you recommend it. Any idea on prices.

[Morph]

It will cost you around R180 per probe (need 2) and the gauge is about R500 to R1000. Why not invest in an engine management gauge from MGL, it will give you 2 EGT's, 2CHT's rpm, timer and hobbs all in one. This would be an EMS-503 or EMS-582

Check out MGL on http://www.mglavionics.co.za. Look under the Smart SIngle section.

Call Rainier on 021 855 1383

I will never ever fly without EGT's

As far installing it is concerned it is easy. EGT's are installed on the exhaust as it comes out of the engine. You should have two nuts with bolts in them at the moment closing off the holes. If not an engineering/exhaust place can drill the holes and weld the nuts into place.

CHT's are easier, take out one plug on each piston, slip the CHT over the plug (it's looks like a big washer with a wire connected to it) and put the plug back.

The RPM is connected to the gray wire from the engine, you can sommer put it in parallel to the input of your existing RPM gauge if you are leaving it in.

[Massimo]

Thanks Morph i will follow up. Hope you guys are surviving the weather down there.

[Tobie]

Job coming up for me, replace all cylinder head studs, decoke and replace rings with inspecting all other parts.