Cessna 310 Engine Troubles
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- čas přidán 30. 06. 2023
- Penny is having a bit of trouble with her engines and the results are low cruise speed and poor climb performance.
Starting to run out of ideas to correct this issue. All the basics seem to be correct. Fuel flows have been set up in accordance with the M-0 maintenance manual. I am a little suspect of one fuel pump however and I certainly seem to get high pressure but low fuel flow on the left engine.
An induction leak is becoming my primary area of concern now. MP is high for 1000rpm. Potential culprit is fuel drain hoses attached to either side of the intake tubes just past the throttle body that vent overboard with no check valve but I would expect these to require a one way valve that is close by engine vacuum pressure! - Auta a dopravní prostředky
Great job with your work in providing all the fundamental details and flight footage supporting your activity with the C-310. My all-time favorite multi-engine flight experience with a later version of C-310, with approximately 50-hrs left seat. Definitely a Louisiana mosquito on steroids, exhilarating!
No expert, but I'd be checking the left engine prop governor, and the left prop for sludge, the reason it's not giving you full RPM is the prop isn't reaching the 'full fine' position.
Good thoughts. Unfortunately the prop has only about 5 hours on it since overhaul so very clean in there.
The engine is not making enough power to push to the prop to full rated static rpm. Once airflow from forward motion occurs rpm increases until the governor starts doing its job. This confirms an engine issue rather than prop or governor.
@@fastbackflying853 , has the Engine ever made full RPM since the prop was overhauled?
I’d reach out to Savvy Aviation. I’m pretty sure Mike Busch the founder fly’s the same plane. Good luck with your issue.
Have you considered a MAG problem, weak spark? Or partially grounded plug wire? As you mentioned mechanical fuel pump could have an issue, but when fuel psi is balanced and still can't get full rpm seems like another issue. (Maybe more than 1 problem) Since compressions is great ( I assume dry cylinder check), plug gap good and there is plenty of fuel, manifold pressure high, could be a partly grounded plug or bad plug wires or weak spark or any combination ... but I suspect electrical. And yes prop governor may also play a role!
We did get the issue fixed and there is a second video showing that. Turned out to be corrosion inside the fuel distribution spider.
@@fastbackflying853 I've got a G model and I'm working through the whole fuel system as well. I was going to ask about the distribution spider because I had mine rebuilt as the aircraft had been sitting for a decade. Prior to that it was finicky. In my more extreme use case, I was blowing the breaker for the electric fuel pump because the diaphram inside the distribution spider had become hardened over time and was not allowing full fuel flow. This would cause an overload condition on the electric pump. This was also causing an engine out at times back when it was running. The 310 is fine on one engine so it was never a big deal.
My issue now isn't full power, it's richness as I'm out of adjustment on the fuel-air control unit linkage with the air horn. And my next plan of attack was the mechanical fuel pump adjustment pressure. That hasn't seemed to be the golden ticket. Basically the fuel metering is just too rich and I can't seem to have a smooth power reduction without corresponding leaning. If I don't do that, the richness at lower power settings causes plug fowling. Which will, again cause an engine out on power reduction on landing if you're not super careful. I've been at this for months myself. I feel your pain.
It appears that you MAY be missing the pilot side yoke control shaft BUSHING where the shaft goes into the instrument panel. A missing bushing could cause severe wear in the shaft.
Thank you for your concern. The bushing is there and in excellent condition. Its a little further into the panel behind the more open area where the gust lock installs
I wouldn't want to take off without static RPM confirmed
I only released the aircraft for flying after confirming and consulting with an engine shop, prop shop and Continental about the performance and lack of full rated static.
@@fastbackflying853 Well that's good! As long as you can stay above Blue Line!
I would stop flying that plane!!
Why is that?
Certainly makes sense for many who either have been in an aircraft accident and survived, someone who has owned a C-310 and no longer have, either worse case crashed it, sold it, lost it in a divorce case, lost it gambling, drug trafficing, or at best is a person who just hates to watch CZcams videos without a crash at the end as this falls into the primary category of “Flight Failures”, sub-cat of “In a Cessna C-310”. You own one and they don’t, would’ve been the best reply. 😂