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rcmatt007
Senior Member
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Posted: Mon Aug 15th, 2005 02:37 pm | 21st Post |
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exavid wrote: That's why the aircraft engine used the silk thread, even it there was a missed spot of sealant, the thread was known to be continuous so once it was squashed in there was no way for oil to get past. I'm talking about a thin thread, like one you'd use in hand sewing delicate fabric.
Paul... we haven't really used silk for years in medicine, however chrmic gut is still used
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-Rodger-
"If you don't pursue your dream, you might as well be a vegetable"
'75 frame and parts project, '78 1000, '86 1200I, 05 HD-Road King
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exavid
Top Poster
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Posted: Mon Aug 15th, 2005 03:27 pm | 22nd Post |
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| The woman who hangs around here had some and so did my A&P brother-in-law.
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If you can't ride, fly or sail it, why bother?
Paul W.
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Goldwinger1984
Senior Guru
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Posted: Mon Aug 15th, 2005 05:37 pm | 23rd Post |
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Mr.1200 wrote: Vic.This is a 87I that Gambler tore down,I had asked him if he would post pictures of the Tranny gears,When he posted this.
http://www.goldwingfacts.com/forums/forum1/3766.html
Gambler posted a complete set of pic's for everyone to have a look at...
Way to go Gambler 
Vic,do you have any 84 gear pictures to compare too??
From memory the tranny looks identical to the 84 that's why I thought it was an 84. I'll have to dig out some pics of the 84 for comparison Rocky.
Gambler how did the crank journals and bearings look up close and did you measure for flat spots on the crank? Most 1200 cranks I've seen were still quite round in spite of mileage, but, most were quite scored from dirt and the babbitt was worn through as well.
Vic
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A place for GL1200's to gather.
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Goldwinger1984
Senior Guru
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Posted: Mon Aug 15th, 2005 05:46 pm | 24th Post |
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Renegade wrote: The machine tolerances for both halves of the case are within .001" - .004". All you need is a very clean surface and some good quality silicone.. I use the Permatex gold.. Never ever had a leak... You already know this, but it's critical to torque the case bolts properly so there is no distortion on the mating surfaces..
Renegade, the only thing I don't like about using silicone on the case halves, in particular, is that if the silicone happens to squeeze off into the crankcase and gets into the engine oil it may affect the hydraulic lifters on the 1200.
Couldn't agree with you more about proper torque sequencing.
Vic
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A place for GL1200's to gather.
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rcmatt007
Senior Member
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Posted: Mon Aug 15th, 2005 06:51 pm | 25th Post |
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I think the worrk about the silicon falling into the crankcase is that it might plug up the various ports the oil must go through which would be a bad thing.
____________________
-Rodger-
"If you don't pursue your dream, you might as well be a vegetable"
'75 frame and parts project, '78 1000, '86 1200I, 05 HD-Road King
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Goldwinger1984
Senior Guru
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Posted: Tue Aug 16th, 2005 12:04 am | 26th Post |
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It's a one in a thousand chance that it might occur, but, it can and that's why I prefer the brush on permatex formagasket over the RTV silicone at the crankcase half joint because once it dries it stays in place regardless of the oil currents in the crankcase. Excess RTV silicone, once dry at the case half joint can be rocked back and forth by oil currents and when heated can loosen and circulate through the oiling system. It's a little thing, but, could mean a lot if it caused expensive lifter repairs or worse yet cause total blockage in an oil port.
Vic
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http://www.gl1200goldwings.com/
A place for GL1200's to gather.
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Gambler
Guru
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Posted: Tue Aug 16th, 2005 04:59 am | 27th Post |
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Goldwinger1984 wrote: Mr.1200 wrote: Vic.This is a 87I that Gambler tore down,I had asked him if he would post pictures of the Tranny gears,When he posted this.
http://www.goldwingfacts.com/forums/forum1/3766.html
Gambler posted a complete set of pic's for everyone to have a look at...
Way to go Gambler
Vic,do you have any 84 gear pictures to compare too??
From memory the tranny looks identical to the 84 that's why I thought it was an 84. I'll have to dig out some pics of the 84 for comparison Rocky.
Gambler how did the crank journals and bearings look up close and did you measure for flat spots on the crank? Most 1200 cranks I've seen were still quite round in spite of mileage, but, most were quite scored from dirt and the babbitt was worn through as well.
Vic
crank looks good, bearings look ok with some wear. mains better then rods. but will check with plastigage later and let you know.Attachment: goldwing rebuild 058 (Small).jpg (Downloaded 231 times)
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87 GL1200 Interstate(reborn  )
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Gambler
Guru
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Posted: Tue Aug 16th, 2005 05:00 am | 28th Post |
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| mains Attachment: goldwing rebuild 055 (Small).jpg (Downloaded 237 times)
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Tue Aug 16th, 2005 05:01 am | 29th Post |
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| rod Attachment: goldwing rebuild 053 (Small).jpg (Downloaded 248 times)
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87 GL1200 Interstate(reborn )
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Goldwinger1984
Senior Guru
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Posted: Tue Aug 16th, 2005 10:45 am | 30th Post |
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Thanks for taking the time to post the pics Gambler.
Seems like your bearings are in better shape than most I've seen. Usually the babitt is pretty much worn off the upper rods and lower mains.
How many miles on this engine?
Vic
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A place for GL1200's to gather.
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Renegade
Guru
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Posted: Tue Aug 16th, 2005 11:24 am | 31st Post |
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I should have added that I brush on a very thin layer of silicone.. When I took apart my first 1200 engine, it appeared that Honda also used a type of silicone that was almost silver in color.. Very, very thin... Just enought to seal out any imperfections in the machine surfaces..
I did the same,,, Brushed on a very thin coating of the silicone..
Thanks for reminding me Goldwinger... good point...
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LZ English 66 - 67
New '08 Titanium Nav
I'm old and wise, but was once young and stupid.
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Gambler
Guru
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Posted: Tue Aug 16th, 2005 01:46 pm | 32nd Post |
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Goldwinger1984 wrote: Thanks for taking the time to post the pics Gambler.
Seems like your bearings are in better shape than most I've seen. Usually the babitt is pretty much worn off the upper rods and lower mains.
How many miles on this engine?
Vic
62000 miles. don't appear to be the easiest miles either.
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87 GL1200 Interstate(reborn )
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Goldwinger1984
Senior Guru
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Posted: Tue Aug 16th, 2005 02:46 pm | 33rd Post |
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It's amazing that second gear broke. Never seen that before. Any idea of how it was done?
Vic
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A place for GL1200's to gather.
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:01 am | 34th Post |
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Goldwinger1984 wrote: It's amazing that second gear broke. Never seen that before. Any idea of how it was done?
Vic
no idea, but the bike was from San Francisco, steep hills+heavy bike and kamikaze drivers=might need to make fast getaways. Attachment: goldwing rebuild 059 (Small).jpg (Downloaded 230 times)
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:02 am | 35th Post |
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| more.. Attachment: goldwing rebuild 060 (Small).jpg (Downloaded 225 times)
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:04 am | 36th Post |
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the reciever gear..where the dogs engage, some scoring but not too bad
Attachment: goldwing rebuild 061 (Small).jpg (Downloaded 210 times)
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:10 am | 37th Post |
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the mains plastigaged out at #1=.0025, #2&3 =.002, the rods were at .001-.0015, so I am going to reuse the bearings. Also will reuse the rings, they appear to be chrome faced top rings which usually outlast the cyclinder in cars. hopefully it works the same for bikes.  Still have crosshatch in all cylinders.
opinions welcome.
Last edited on Wed Aug 17th, 2005 02:11 am by Gambler
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:50 am | 38th Post |
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| I was worried about the what I would find when I took apart the primary driven gear damper, but it looks ok to me, still fits together tightly. Attachment: goldwing rebuild 066 (Small).jpg (Downloaded 216 times)
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87 GL1200 Interstate(reborn )
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Gambler
Guru
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Posted: Wed Aug 17th, 2005 02:54 am | 39th Post |
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dj norm wrote: Hey gambler keep us informed of the evolution of the project it must be nice to have the place (room) to get your hands durty an work on a project like this.
Good luck By the way is it a LTD or SEi i noticed a (crank pos sensor) on the 2 first pics ????? I It's an Interstate, those are the pulse generators on the front under the timing belts. Really, I'm pressed for space, I can barely turn around in my garage.Attachment: goldwing rebuild 063 (Small).jpg (Downloaded 216 times)
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87 GL1200 Interstate(reborn )
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Goldwinger1984
Senior Guru
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Posted: Wed Aug 17th, 2005 04:13 am | 40th Post |
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Gambler wrote: the mains plastigaged out at #1=.0025, #2&3 =.002, the rods were at .001-.0015, so I am going to reuse the bearings. Also will reuse the rings, they appear to be chrome faced top rings which usually outlast the cyclinder in cars. hopefully it works the same for bikes. Still have crosshatch in all cylinders.
opinions welcome.
Everything seems to be within specifications and I would reuse the rings also. It is amazing how those cylinders wear so good. You probably know this already but do not clean out the ring lands if you are reusing the old rings.
Don't forget to check the oil pumps and if you can, post some pics of the oil pumps disassembled please. I'm anxious to see if any of the broken gears caused excess scoring on the oil pump vanes or housing.
Keep up the great work Gambler.
We really appreciate all the excellent and clear pics you have taken.
Vic
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A place for GL1200's to gather.
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