turbocamino
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Location: DE
Posts: 177
recent/last project;1100/1200 turbo
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« on: October 12, 2023, 06:51:20 PM » |
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I was searching around for info on engine mounts and vibrations for my 89,,came across this from 2010 >"The pre-91 generations don't have rubber mounted engines like the later ones do. Never hurts to take something apart to clean and fix it, but you're not going to see huge gains in vibration reduction on the older machines" Are they not serviceable ?
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89 FJ1200 saphire.blu owned 8-9 years. By far the most satisfying of them all. Constant tinkering got me the best bike you could ever want.
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FJmonkey
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« Reply #1 on: October 13, 2023, 09:21:23 AM » |
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I think the point of the comment was the joint is static. Why service it when its not broken. The joint will still be static after service and not likely to improve the vibration issue.
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The glass is not half full, it was engineered with a 2X safety factor.
'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side
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racerrad8
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« Reply #2 on: October 14, 2023, 03:48:43 PM » |
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So, I have to disagree with Mark on the mounts. The left upper aluminum motor mount bushing is supposed to slide freely in the engine case lug. After years of road grime and water they seize in the bore. There have been many a puller made out of all thread, washers and a piece of pipe to press the bushing out of the case. I read many posts from overseas where guys have drilled them out, ground them out, etc. because they couldn't press it out. I only have one recommendation, do not....I repeat...DO NOT try and get it out with a hammer. I broke the case on my 86' that way. If you get it out, you can either polish the bushing and bore smooth, and reinstall with a high temp, synthetic grease. Or you can eliminate the sole aluminum motor mount and install a new rubber bushing into that hole too: https://www.rpmracingca.com/proddetail.asp?prod=M%2FC%3AEngDamper3Randy - RPM |
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Bozo
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« Reply #3 on: November 12, 2023, 06:32:21 AM » |
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So, I have to disagree with Mark on the mounts. The left upper aluminum motor mount bushing is supposed to slide freely in the engine case lug. After years of road grime and water they seize in the bore. There have been many a puller made out of all thread, washers and a piece of pipe to press the bushing out of the case. I read many posts from overseas where guys have drilled them out, ground them out, etc. because they couldn't press it out. I only have one recommendation, do not....I repeat...DO NOT try and get it out with a hammer. I broke the case on my 86' that way. If you get it out, you can either polish the bushing and bore smooth, and reinstall with a high temp, synthetic grease. Or you can eliminate the sole aluminum motor mount and install a new rubber bushing into that hole too: https://www.rpmracingca.com/proddetail.asp?prod=M%2FC%3AEngDamper3Randy - RPM I'm experimenting fitting the 91 mounts on my 3CV 89, I have been avoiding any modifications to the main frame so if things become pear shaped I can easily return to standard. The solid rear upper mounts were removed and the two old rubber mounts from the lower front (with minor trimming) were fitted. With some luck I will be finished in a week or two, I'll keep you posted. I have to admit if you don't have good hand, welding skills and a friend with a good lath, I would not attempt it. |
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First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it
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Millietant
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« Reply #4 on: November 12, 2023, 09:29:50 AM » |
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If vibration is a problem, look elsewhere in the first instance with the 84-90 FJ’s - start with carb balancing etc before you go tearing into seized engine mounts.
Even with seized mounts, the vibration levels on those FJ’s isn’t normally a bother on a nicely set up bike.
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Dean
'89 FJ 1200 3CV - owned from new.
'89 FJ 1200 3CV - no engine, tank, seat....parts bike for the future.
‘88 FJ 1200 3CV - complete runner 2024 resto project
'88 FJ 1200 3CV - became a race bike, no longer with us.
'86 FJ 1200 1TX - sold to my boss to finance the '89 3CV I still own.
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FJ1200W
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« Reply #5 on: November 12, 2023, 07:28:35 PM » |
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If vibration is a problem, look elsewhere in the first instance with the 84-90 FJ’s - start with carb balancing etc before you go tearing into seized engine mounts.
Even with seized mounts, the vibration levels on those FJ’s isn’t normally a bother on a nicely set up bike.
I have to agree. That being said, mine is needing attention. I've never lubed the rear suspension linkage. |
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Steve
Columbia, Missouri
USA
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Bozo
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« Reply #6 on: November 13, 2023, 03:11:44 AM » |
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If vibration is a problem, look elsewhere in the first instance with the 84-90 FJ’s - start with carb balancing etc before you go tearing into seized engine mounts.
Even with seized mounts, the vibration levels on those FJ’s isn’t normally a bother on a nicely set up bike.
Did that plus more like new chain/ sprockets, checked current engine mounts but the engine does have a few mods. Maybe not as bad as it sounds but my age does not like the extra vibs |
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First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it
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Millietant
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« Reply #7 on: November 13, 2023, 05:21:11 AM » |
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Looks like it’s time for thicker gloves and rubber soled boots then  |
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Dean
'89 FJ 1200 3CV - owned from new.
'89 FJ 1200 3CV - no engine, tank, seat....parts bike for the future.
‘88 FJ 1200 3CV - complete runner 2024 resto project
'88 FJ 1200 3CV - became a race bike, no longer with us.
'86 FJ 1200 1TX - sold to my boss to finance the '89 3CV I still own.
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red
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« Reply #8 on: November 13, 2023, 08:01:33 AM » |
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Looks like it’s time for thicker gloves and rubber soled boots then Turbocamino, Padded gloves and padded foot rests are certainly a valid set of options. I would add, converting to standard (7/8" 22mm) handlebars will also help a lot. The EM standard handlebars are too rigid, and they transmit the vibrations into your arms. These mods will benefit you far more in reduced vibrations than the motor mounts. My US$ .02 worth . . . |
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Cheers,
Red
P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.
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Pat Conlon
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« Reply #9 on: November 13, 2023, 09:07:06 AM » |
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