Today's Message Index:
----------------------
1. 06:15 AM - egt temp (paul baker)
2. 07:35 AM - Re: egt temp (Roger Lee)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I own a 601 hd with a 912usl. The egt runs in the mid
1500s at cruse.If you advance the throttle, the egt will
run mid 1400.I checked the settings on the bing carb.
the adjusting ring has 5 slots and the clip is in the next
to the bottom slot. I was told to move the clip down one
slot to increase the mixture. Do these temps seem to
high? The engine runs smoth and I don't want to mess
something up. The plugs are a light brown and show no
sign of being too hot
paul baker
zodiac 601 190total hrs 50 by me
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Hi Paul,
Need to know a few things first. What altitude is your field and most of your cruising
done at? What is your cruise engine RPM? Rotax 912's run hotter usually
between 4400-4800 rpm and starts to cool down around 4800 and keeps cooling
right on up to 5100-5200 rpm depending on the individual engine. 5000-5100 should
see its coolest cruise. Rotax engines were set up to cruise between 4800-5200
rpm for several different reasons. It should start cooling down again once
you go down to 4300 rpm and below.
What are your cyl. head temps running?
These temps do seem a little high. My temps at 4700 rpm can go up to 1450-1475
egt and will cool down to 1350-1375 egt at 5000 rpm.
People with enclosed engines under cowlings may see some higher temps verses people
that have open air engines. My engine is enclosed under a cowling.
What is your WOT rpm? It should be 5500 rpm? If it is pitched too much you might
want to consider taking out a small amount of pitch so the engine is not working
so hard at your cruise rpm.
All these things can have an influence on your temps. These answers can help diagnose
your problem. If you don't have the answers fly it once and write them
down, then we can probably figure it out without guessing and doing things just
to do something.
What type of coolant are you using? They make two different size of radiators,
which do you have?
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120328#120328
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|