My neighbor had to remove his 100 hr since OH Lyc IO360 engine from his Mustang II because of a case crack on the alternator attachment area. Real Bummer. He did the OH work himself with A&P supervision 2 years ago.
When we split the case we found the #4 Ex lobe was slightly pitted and the tappet was beat up. Not good!
To me all of the other lobes looked good. The case will take several weeks to fix so he decided to send the cam to Aircraft Specialty Services for inspection. They say the cam is worn on the "toe" of several lobes?? I do not understand this description. Now it must be reground and all the tappets need to be ground. $$$
What could have possibly caused this this rapid wear on the cam? 100 Hrs!!!
I think he will use my A&P to re assemble this time. Could this be a pre lube problem? What the best to use on the cam and tappets. All the bearings look perfect so I do not know what to think.
He says all temps and press have always been OK.
Thanks,
BB
When we split the case we found the #4 Ex lobe was slightly pitted and the tappet was beat up. Not good!
To me all of the other lobes looked good. The case will take several weeks to fix so he decided to send the cam to Aircraft Specialty Services for inspection. They say the cam is worn on the "toe" of several lobes?? I do not understand this description. Now it must be reground and all the tappets need to be ground. $$$
What could have possibly caused this this rapid wear on the cam? 100 Hrs!!!
I think he will use my A&P to re assemble this time. Could this be a pre lube problem? What the best to use on the cam and tappets. All the bearings look perfect so I do not know what to think.
He says all temps and press have always been OK.
Thanks,
BB