| GL1500 - 300,000 mile rebuild | Rate Topic |
| Moderators: redbaron, MDKramer, Flyone, AZgl1500 | Page: 1 2 3 4 5   |
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| Posted: Sat Nov 14th, 2009 11:59 pm | 1st Post |
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This 94 1500 has 300,000 miles showing on the clock. A friend of mine got it for a song. The body is in pretty good shape .The history is unknown but it doesnt look like the previous owner(s) had maintenance high on their list of priorities. It was smoking like a plugged up woodstove and #1 cylinder had about 40 lbs of compression. Today I removed one cylinder head and here is what I found so far. Lots of crud, carbon and a burnt exhaust valve in the #1 cylinder. I havent gone any further . ( I dont know what the owner wants to do yet) Just wanted to say that these are amazing engines... ..I drove it home the other day and despite these problems, and aside from smoking bad on startup and when backing off the throttle , it drove ok......If a poorly maintained engine with these problems is still running at 300,000 how far will a properly maintained engine go ? Attachment: 007.bmp (Downloaded 1193 times)
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| Posted: Sun Nov 15th, 2009 12:00 am | 2nd Post |
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| Posted: Sun Nov 15th, 2009 12:11 am | 3rd Post |
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What do the cylinder walls look like?
____________________ I am a motorcyclist, not a biker. I do not hang out in bars wearing a sleeveless T shirt and a leather vest and brag about my scooter. Nor do I refuse to wear a helmet claiming it impairs my hearing while riding something that would drown out the sound of an atomic bomb. I ride. Honorary Wild Rhino Darksider #304 |
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| Posted: Sun Nov 15th, 2009 12:18 am | 4th Post |
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Actually pretty good, no scratches or marks . I am thinking that most of the smoke was from the valve seals. I'll find out later when I remove the valves. I'll show some pictures of the cylinders later on...
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| Posted: Sun Nov 15th, 2009 12:45 am | 5th Post |
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Not too bad looking for 300,000 miles. it looks like the oil has been changed regularly, not at 3,000 miles, but at least changed.
____________________ Dave Ride Safe and Ride Often, Keep the Shiny Side up and Many Happy Miles and Smiles. "In God We Trust" All Others Must pay Cash!!! Current Goldwing 2010 Gl1800 Trike Other Rides 1985 Goldwing Aspencade Blue - Sold 2006 Harley Davidson Sportster - Sold 2006 Goldwing Navi - Sold 2007 Honda Rebel 250cc 2007 Honda 110cc 1985 1200cc Goldwing Aspencade Beige 1994 1500cc Goldwing Interstate Black 2010 1800cc Goldwing Trike Red |
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| Posted: Sun Nov 15th, 2009 12:55 am | 6th Post |
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I would clean the heads, do a valve job put 4 oz Sea Foam in the fuel and oil. Change the oil every 100 miles and more Sea Foam, then when the oil comes out clean, keep that up for another 300 miles with only 2 oz in the oil. I would be willing to bet that engine is not nearly as dead as it looks.
____________________ John |
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| Posted: Sun Nov 15th, 2009 08:28 pm | 7th Post |
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The cylinders look ok even though there may have been some coolant or other liquid sitting in #5 for a while, I can see some light stains. There is no significant movement in the pistons. The exhaust valve for #1 cylinder has a big chunk out the side and is cruded up pretty bad. The remainder of the valves in this head look ok and will probably clean up. The valve giudes are good. The valve seals are as hard as nails .I guess the smoke was due to oil getting past those seals......The owner doesnt want to spend a whole lot on this project right now so I think it will just be one new valve and do the rest over. I have not removed the other head yet....... Attachment: 001.bmp (Downloaded 1108 times)
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| Posted: Sun Nov 15th, 2009 08:29 pm | 8th Post |
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| Posted: Sun Nov 15th, 2009 08:29 pm | 9th Post |
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| Posted: Sun Nov 15th, 2009 08:30 pm | 10th Post |
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| Posted: Sun Nov 15th, 2009 08:33 pm | 11th Post |
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Due to the miles, I'd be inclined to buy some good low mileage heads from eBay, or the like.
____________________ 1983 GL1100 Interstate 1983 GL1100 Aspencade 1997 GL1500 SE |
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| Posted: Sun Nov 15th, 2009 08:55 pm | 12th Post |
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Silicon Sam wrote: Due to the miles, I'd be inclined to buy some good low mileage heads from eBay, or the like. Nah. Run it!!! Let's see how long one of these things will really last!
____________________ '98 SE successor to '84 Aspencade |
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| Posted: Sun Nov 15th, 2009 11:16 pm | 13th Post |
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GLGREZMONKI wrote: pic4Yes sir, buggered up pretty good.
____________________ Women will never be equal to men until they can walk down the street with a bald head and a beer gut, and still think they are sexy. |
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| Posted: Mon Nov 16th, 2009 02:04 am | 14th Post |
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Is that valve missing a piece in pic#3?
____________________ 1974 Kawasaki KZ400 1976 Harley Davidson SX250 1977 Yamaha XS650 1978 Suzuki GS1000 1989 Yamaha FJ1200 1991 Interstate...sweetest bike ever |
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| Posted: Mon Nov 16th, 2009 05:58 pm | 15th Post |
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I agree with Jeff, as it would be great to see if new guide seals and a new valve fixes it up.....Steve
____________________ Steve W |
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| Posted: Mon Nov 16th, 2009 06:49 pm | 16th Post |
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That ride home is important and will give a good idea of overall condition. If the engine didn't knock or rattle on the ride home, I would say just do the valves and seals and see how it goes. Check for side play in the valve stems as well. The caked up crud in the head makes it look like that engine didn't see oil changes all that often, but it might still be good.
____________________ Steve Saunders, Founder Member & Admin. |
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| Posted: Mon Nov 16th, 2009 09:49 pm | 17th Post |
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Thats a good way to look at it.. the drive home... it did drive ok, and there were no knocks or rattles. The other five cylinders pulled the weak one along with them I guess. Thats exactly what I plan on doing..replacing the one valve along with new valve seals, head gaskets etc. I removed the left head today. These valves had lots of carbon on them but cleaned up ok. There are some marks in the #5 cylinder that look worse in the picture than they actually are. The owner wants to be very frugal with this repair and would be happy with no or . at least, reduced smoke....... Attachment: 003.bmp (Downloaded 883 times)
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| Posted: Mon Nov 16th, 2009 09:50 pm | 18th Post |
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| Posted: Mon Nov 16th, 2009 09:53 pm | 19th Post |
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| Posted: Mon Nov 16th, 2009 09:54 pm | 20th Post |
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