Re: N275CH First Flight Q200
Thanks for the input. It will help solve your problem.
Some answers to Jim's questions:
Gascolator: NO ******** Good
Heat sleeve: YES ******* Good.
Fuel line between carb and oil tank: NO******* OK where does th
efuel line come though the firewall? Is it the shortest run possible?
Aux tank: NO. Straight from header to carb.******* Filters clean?
Fuel on board: About 15 gallons*******OK
Fuel vent: Checked before and after flight. Not hard plugged but who
knows if fuel plugged it on this flight******* This can definetely
cause the problem you described. It happened to me once. Loss of
fuel flow is no fun. I had filled the main, header and aux tank and
mistakenly flipped the aux switch ON before takeoff, thus putting
fuel overboard via the vent tube. NOT GOOD! Carb heat on and off
contineously let me get it back to the runway.
Flow check header tank in flight position: Not in flight position
but it did flow like a racehorse with the tail on the ground. (I
rechecked this as soon as I got it back to the hangar.)
Actual flow I don't know.************There is a minimum FAA
requirement. Bob F correct me if I'm wrong but I think its 15%
greater than the fuel burn for the engine at full power. ie, 9.5 x
15% or 10.9 per hour (gravity flow with fuel pump off). The facet
pump should deliver about 30 gph to the carburator. This is
typically checked with the tail off, fuselage on the mains and rear
on the floor. You might want to do this check prior to another
Carb Ice: Not Likely at 65 F and dew point about 24F (-4 C on ATIS
Heat soak: Now I think that is the question. I did 3 fast taxis with
slow taxis back to the start. Typically, I had done fast taxis back
and forth and I had never seen the oil temp up to 190. I chalked the
higher temp up to the slow taxis and thought it would drop when I
got some air through the engine. I just might have been late and
wrong on that call). Please note it is a long way to the runway and
I was sitting a bit waiting for other aircraft to clear before I was
allowed my fast taxis.*********OK since removing my gascolator I've
been in 100+ weather at OSHKOSH and other places taxiing for
extended time and did not have that problem. It only happened to me
with the gascolator.
Where are you located Kevin?
been so lucky.the
carb and oil tank? Do you have heat sleeve over the fuel lines? Docarb
in flight position (tail off, fuselage on the mains and split lineon
the deck)prior to flight? If so what was the flow in gallons perheat
soak prior to flight?were
very high. Are you around anyone that can verify this condition?vapor
lock, I shit canned it and the rest is history.plan
as Ithecould expect. Then after about 10 seconds and at about 100 feet
enginedeclaredacted like it ran out of gas. Oh shit. I put the nose down,
hitemergency, and started heading back to the runway which at thispoint wasobviously too short for the job at hand. Hoping for a plan B, I
thegetthrottle, the engine revved up, then slowed again after a fewseconds.Seeing a connection there I kept pumping the throttle enough to
her backsayin the air and around the pattern for my "first" landing. Let's
thewithoutapproach was not textbook but I got her back to the ground
anyfor abounces or anything I could complain about. I let it roll out
bit andsituationthen started braking. This is where the adrenaline of the
got thethebetter of me. I braked too hard and it started pulling a bit to
right.Damn, IWhen I realized how hard I was braking I let off of the brake(Johnson bar)then ka-wam, I was headed for the other side of the runway.
was justgottenthinking I was going to pull the stunt off. Except for theembarrassment,all was OK.
hot enoughoilthat fuel was boiling in the carb.ran the
temp.shuttingThis was when I noticed what may the real problem. After
down, whenII tried to move the prop, it moved with a lot of friction. Iquickly removedthe cowl and the sparkplugs to take away thecompression "resistance" andfound the engine was still hard to turn. Not knowing what to do
figuredhadlunch was in order. When I got back from lunch, and the engine
cooledand it turned as light as I had known it before.bet an