1974 T500 crankshaft seals

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stampee
Still in the Driveway
Posts: 8
Joined: Fri Mar 20, 2015 5:43 pm
Country: usa
Suzuki 2-Strokes: 1974 t500

1974 T500 crankshaft seals

Post by stampee »

Hello everyone. new member here. I have had my T500 for 35 years so I know what normal smoking problems are like.
Last year 2014, my T500 started smoking terribly.
The smoking is not consistent. it may smoke horribly, then stop for miles, then start again. It also is hard to tell which pipe it is smoking from. Basically both of them. It has had some smoke off and on for many years now, but it went to heck last season.
I determined it is sucking oil from the transmission. The oil goes down really fast in the transmission and it definitely has no major leaks or drips. SO from this I presume the center crankshaft seal is bad.
Is Ebay the only place to order seals and parts these days? I am not sure what exactly I need for crankshaft seals.
Would this kit work?

http://www.ebay.com/itm/381186088466?_t ... EBIDX%3AIT

I have the engine apart and everything looks great inside.
Thank you for any advice.
-Stampee
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ConnerVT
Novice racer
Posts: 963
Joined: Wed Jan 18, 2012 8:01 pm
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Suzuki 2-Strokes: T500R (now), T500M (40 yrs ago)
Location: North of Albany, NY

Re: 1974 T500 crankshaft seals

Post by ConnerVT »

I've seen that seal kit on eBay before. Made me nervous, as I could not align what I was seeing in the kit with what was actually needed.

Good news is that nearly all of the seals are available from Suzuki. The one odd ball is the (right side?) seal 09283-35002, available at several places. For the labor and expense of rebuilding the crankshaft, no reason to use parts that you are less than 100% confident with.
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Coyote
Moto GP
Posts: 3404
Joined: Tue Oct 21, 2008 2:41 pm
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Suzuki 2-Strokes: GT550x2, GT750, GS1000
Location: Tulsa, Oklahoma

Re: 1974 T500 crankshaft seals

Post by Coyote »

There was some discussion about that very kit not long ago. A member here bought it and almost nothing fit. You have had a long term relationship with your bike. Treat her right!
I was born with nothing and still have most of it left.

.
1978 GS1000C
1976 GT550 ongoing money pit.
Vintageman
Expert racer
Posts: 1485
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Suzuki 2-Strokes: Suz, Yam, Honda, Kaw.
Location: New Hampshire

Re: 1974 T500 crankshaft seals

Post by Vintageman »

Contact Bill Bune. If you choose to use then for crank work ( I have last few times and OK), I think he may have these OEM seals on hand.... ask
Current registered, inspected, and running well 2 stroke motorcycles
74 GT250 (T350 upgrade),
76 GT250 (T350 upgrade),
71 T350,
70 T350,
74 GT380,
75 T500,
73 GT550,
75 GT750,
72 Yamaha DS7 (R5 upgrade),
77 Yamaha RD400 (Daytona Cyls),
73 Kawasaki H1 500
stampee
Still in the Driveway
Posts: 8
Joined: Fri Mar 20, 2015 5:43 pm
Country: usa
Suzuki 2-Strokes: 1974 t500

Re: 1974 T500 crankshaft seals

Post by stampee »

Thank you to everyone. I will look for oem suzuki seals then. My friend is a machinist and has done a few other cranks, so he will split the crank and re align it for me.
I greatly appreciate the assistance.
-stampee
argo1974
To the on ramp
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Joined: Fri Nov 07, 2008 3:01 am
Location: Tallinn, ESTONIA

Re: 1974 T500 crankshaft seals

Post by argo1974 »

I have a set of OEM crank seals for sell if interested. They are pretty fresh, I ordered them around 8 months ago through local Suzuki dealer. Meanwhile I sold the bike they were intended for.
1x T500 Cobra (1968)
4x T500K (1973)
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PippiFyrecracker
Around the block
Posts: 66
Joined: Mon Apr 06, 2015 6:17 pm
Country: Canada
Suzuki 2-Strokes: 1975 T500, 1983 SP250
Location: ottawa, ontario, canada

Re: 1974 T500 crankshaft seals

Post by PippiFyrecracker »

OH NO! I just ordered those from ebay, I guess I may have to send them back... @stampee I'm in the same situation, are you taking your bike to a shop or are you doing it yourself? also where did you end up getting your seals from?
Bloop2
To the on ramp
Posts: 276
Joined: Tue Jan 22, 2013 3:40 pm
Country: Ontario, Canada
Suzuki 2-Strokes: B100P,T200, 68,70,74 T500,GS650G DL1000

Re: 1974 T500 crankshaft seals

Post by Bloop2 »

OH NO! I just ordered those from ebay, I guess I may have to send them back... @stampee I'm in the same situation, are you taking your bike to a shop or are you doing it yourself? also where did you end up getting your seals from?
Firecracker.....welcome to the forum. Since you're in Canada, you can still get all four crank seals from your local Suzuki dealer.
68 B100P x2
68 T500 Cobra x3
69 T500
70 T500 x2
74 T500
76 GT500
76 GT185 x2
81 GS650G x2
04 DL1000
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Coyote
Moto GP
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Suzuki 2-Strokes: GT550x2, GT750, GS1000
Location: Tulsa, Oklahoma

Re: 1974 T500 crankshaft seals

Post by Coyote »

I would not recommend that anyone try to do the crank themselves. Many years ago, I did a single cylinder 250 Ducati crank. I am a machinist by trade and had access to lathes, centers ,surface plates, v-bocks, a 50 ton press, a bucket full of indicators and a BFH. Even at that it took me several hours to get it running dead true on the crank end (s) bearing fits. If just one counterweight is out it throws everything else out. I would not do it again even with all the equipment listed above. A twin would close to impossible and a 3 cylinder would be impossible. Farm the job out to someone who has all the jigs and fixtures AND the experience to get the crank together right. Nothing else is acceptable.
I was born with nothing and still have most of it left.

.
1978 GS1000C
1976 GT550 ongoing money pit.
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PippiFyrecracker
Around the block
Posts: 66
Joined: Mon Apr 06, 2015 6:17 pm
Country: Canada
Suzuki 2-Strokes: 1975 T500, 1983 SP250
Location: ottawa, ontario, canada

Re: 1974 T500 crankshaft seals

Post by PippiFyrecracker »

good to know! thank you! whenever I tried to order parts for my bike before they said everything was discontinued, I received the seals from bc today in the mail, I'm going over to a friends place who has the crank out of the same bike to see if the kit I ordered looks legit. Also no worries, once I have my engine apart I will take my crank to a machine shop and get them to assemble and press fit it! I just have to do as much as possible on my own because I can't afford for someone else to do the whole job. plus I want to learn so I can know my bike inside and out.
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PippiFyrecracker
Around the block
Posts: 66
Joined: Mon Apr 06, 2015 6:17 pm
Country: Canada
Suzuki 2-Strokes: 1975 T500, 1983 SP250
Location: ottawa, ontario, canada

Re: 1974 T500 crankshaft seals

Post by PippiFyrecracker »

Just an update, a friend and I successfully changed both oil seals, without a horizontal split in the engine. kept to the min. work. we did the clutch side first since its usually the most common to go. Also the new ones were from the engine seal kit on ebay (somewhere in british columbia)
sidenotes.
we had to jam a piece of aluminum on the right-clutch side to stop the crank from turning while trying to get off some of the peices.
we used the rear axle as a puller on the alternator-left side.
stampee
Still in the Driveway
Posts: 8
Joined: Fri Mar 20, 2015 5:43 pm
Country: usa
Suzuki 2-Strokes: 1974 t500

Re: 1974 T500 crankshaft seals

Post by stampee »

Hi all: I used the gasket and seal kit in my first post and had no problems. All seals fit fine. I split the crank and installed the new oil seals. The kit does NOT come with bearing O-Rings however. I had to purchase them from Suzuki, and they were not easy to get. Eay sometimes has the o-rings as well.
-Stampee
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