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#11
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what went wrong
thanks for M76-4 copy and everyone's advice. am going to order another seal
and do better. "Cy Galley" wrote in message news:FVzui.55189$Fc.32497@attbi_s21... Continental which used the same type seal as the Lycoming and Franklin recommends the split be at 11 or 1 o'clock.(case spilt is at 12. My recommendation is to use "super glue" on the ends. Make sure the recess is clean and dry. Use a sealer on the outside. I like Loctite 515 and remember to replace the garter spring and grease the lip. Look at Continental M76-4 for the complete Continental instructions. Cy Galley - Chair, AirVenture Emergency Aircraft Repair A 46 Year Service Project of Chapter 75 EAA Safety Programs Editor - TC EAA Sport Pilot "Dick" wrote in message news:c26ui.7629$dD3.905@trnddc07... Having spent 4-1/2 hours removing and 1 hour replacing a leaking split seal on the front of my flanged crankshaft C-85 , my first flight today still shows leakage.... Never really doing those old Chevy two part split seals well, I guess I'm still inept G. I think I'll be able to better the aforementioned time durations but would appreciate any hints at doing a better job this time. Thanks, Dick |
#12
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what went wrong
Dick wrote:
thanks for M76-4 copy and everyone's advice. am going to order another seal and do better. "Cy Galley" wrote in message news:FVzui.55189$Fc.32497@attbi_s21... Continental which used the same type seal as the Lycoming and Franklin recommends the split be at 11 or 1 o'clock.(case spilt is at 12. My recommendation is to use "super glue" on the ends. Make sure the recess is clean and dry. Use a sealer on the outside. I like Loctite 515 and remember to replace the garter spring and grease the lip. Look at Continental M76-4 for the complete Continental instructions. Cy Galley - Chair, AirVenture Emergency Aircraft Repair A 46 Year Service Project of Chapter 75 EAA Safety Programs Editor - TC EAA Sport Pilot "Dick" wrote in message news:c26ui.7629$dD3.905@trnddc07... Having spent 4-1/2 hours removing and 1 hour replacing a leaking split seal on the front of my flanged crankshaft C-85 , my first flight today still shows leakage.... Never really doing those old Chevy two part split seals well, I guess I'm still inept G. I think I'll be able to better the aforementioned time durations but would appreciate any hints at doing a better job this time. Thanks, Dick Does Continental have a solid seal for the engine? The type you force over the prop flange? I've used those before and have seemed to do a good job. Just a thought. Dave |
#13
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what went wrong
On Aug 9, 8:08 am, Dave wrote:
Dick wrote: thanks for M76-4 copy and everyone's advice. am going to order another seal and do better. "Cy Galley" wrote in message news:FVzui.55189$Fc.32497@attbi_s21... Continental which used the same type seal as the Lycoming and Franklin recommends the split be at 11 or 1 o'clock.(case spilt is at 12. My recommendation is to use "super glue" on the ends. Make sure the recess is clean and dry. Use a sealer on the outside. I like Loctite 515 and remember to replace the garter spring and grease the lip. Look at Continental M76-4 for the complete Continental instructions. Cy Galley - Chair, AirVenture Emergency Aircraft Repair A 46 Year Service Project of Chapter 75 EAA Safety Programs Editor - TC EAA Sport Pilot "Dick" wrote in message news:c26ui.7629$dD3.905@trnddc07... Having spent 4-1/2 hours removing and 1 hour replacing a leaking split seal on the front of my flanged crankshaft C-85 , my first flight today still shows leakage.... Never really doing those old Chevy two part split seals well, I guess I'm still inept G. I think I'll be able to better the aforementioned time durations but would appreciate any hints at doing a better job this time. Thanks, Dick Does Continental have a solid seal for the engine? The type you force over the prop flange? I've used those before and have seemed to do a good job. Just a thought. Never seen one, at least for the small engines. That's Lycoming's method. Dan |
#14
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what went wrong
On Aug 9, 8:08 am, Dave wrote:
Dick wrote: thanks for M76-4 copy and everyone's advice. am going to order another seal and do better. "Cy Galley" wrote in message news:FVzui.55189$Fc.32497@attbi_s21... Continental which used the same type seal as the Lycoming and Franklin recommends the split be at 11 or 1 o'clock.(case spilt is at 12. My recommendation is to use "super glue" on the ends. Make sure the recess is clean and dry. Use a sealer on the outside. I like Loctite 515 and remember to replace the garter spring and grease the lip. Look at Continental M76-4 for the complete Continental instructions. Cy Galley - Chair, AirVenture Emergency Aircraft Repair A 46 Year Service Project of Chapter 75 EAA Safety Programs Editor - TC EAA Sport Pilot "Dick" wrote in message news:c26ui.7629$dD3.905@trnddc07... Having spent 4-1/2 hours removing and 1 hour replacing a leaking split seal on the front of my flanged crankshaft C-85 , my first flight today still shows leakage.... Never really doing those old Chevy two part split seals well, I guess I'm still inept G. I think I'll be able to better the aforementioned time durations but would appreciate any hints at doing a better job this time. Thanks, Dick Does Continental have a solid seal for the engine? The type you force over the prop flange? I've used those before and have seemed to do a good job. Just a thought. Seems to me I vaguely remember that there were a couple of different types of crankcases: one had a big cavity behind the seal so that there was no problem draining the oil away from it, and the other had a small drain hole that guck would plug up so that the oil was eventually forced past the seal. Pressure from the front main would do it. But this is really vague and might be applicable to some other engine. My memory isn't what it was. Dan |
#15
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what went wrong
Seems to me I vaguely remember that there were a couple of different types of crankcases: one had a big cavity behind the seal so that there was no problem draining the oil away from it, and the other had a small drain hole that guck would plug up so that the oil was eventually forced past the seal. Pressure from the front main would do it. But this is really vague and might be applicable to some other engine. My memory isn't what it was. Dan My hypothesis is that too much new data forces a lot of old memory out the drian hole, or past the seal. That's my story an' I'm stikin' to it. Peter |
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