TT21
1st Gear
Posts: 17
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Post by TT21 on Dec 19, 2016 9:16:38 GMT -5
Good morning,
I'm a brand new member of this forum and i would like to present myself.
I'm Thomas, i live in Belgium and i buy a barn find Suzuki Re5 in September 2016 with 17 000km from 1975 (Belgian one)
I love the wankel motor and i would like to restore it.
I found some troubles and resolve them but the motorcycle doesn't start.
I take the compression of the motor and i'm at 4 bar. (too less i think/ 8bar is better)
So i would like to know if somebody has piston rings for the RE5 (i know there are no spare parts)
Can you help me?
Best regards Thomas PS : sorry for my formal English
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Post by redbug2 on Dec 19, 2016 9:32:01 GMT -5
Your seals may be stuck. I would probably squirt some motor oil or WD40 in the spark plug hole to hopefully loosen up the seals. One of my RE5's had horrible compression when I got it. After getting it running the compression shot up.
You might want to post this on the "Tuning and Troubleshooting" area. I would not tear it apart until you are absolutely sure the proper unit is shot. The rotar has apex seals and side seals, no piston rings. There are no part numbers for those parts that I know of. You might want to start looking on ebay for a good used proper unit. First post your facts and see if the old engine can be brought back to live.
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TT21
1st Gear
Posts: 17
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Post by TT21 on Dec 19, 2016 9:52:34 GMT -5
Thank you for your answer.
The engine was stuck but not now.(i put a lot of WD 40)
It turns and has compression but not what i expect.
I look on eBay but i don't find some thing.
Do you kmow some one who sell them or build them?
Sorry for the "piston rings", i wasn't how i can explain them.
Thcuss
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Post by redbug2 on Dec 19, 2016 12:13:47 GMT -5
No need to apologize, I knew what you meant by piston rings.
The moderator may move this stream to the Tuning and Troubleshooting area.
There are people on this forum that know more than I do. I'm sure they will have the parts or answers you need. Be patient.
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Post by Jess on Dec 19, 2016 14:00:58 GMT -5
There are no internal parts available new for the Re5 engine anywhere in the world as the engine was never designed to be user serviceable. Instead, Suzuki offered exchange units. That was 40 years ago...
You may be able to find some used parts (apex, side seals) from another member.
The other choice is to find a complete used proper engine. I have them in stock. However, they are expensive and shipping overseas from the US is costly as well.
Best of luck in your search.
Regards,
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Post by re5rotary on Dec 19, 2016 23:51:40 GMT -5
except in NZ where you could buy the parts :-) regards Terry
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Post by kanonkopdrinker on Dec 20, 2016 3:28:12 GMT -5
Hello Thomas
How is your French?
There is Christian Rimaz (aka Rotary Chris) who rebuilds RE5. He lives in Switzerland.
I have his email address somewhere ....
David UK
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fonnyfth
1st Gear
Suzuki RE5M (1blue 1red)Suzuki SV650s Burgman 4OO
Posts: 79
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Post by fonnyfth on Dec 20, 2016 8:39:26 GMT -5
Hello Thomas and welcome to the board, I'm from Belgium also....(Lanaken - Limburg) I have a running RE5 and another that I want to restore. Is it the bike you bought from Michel Stoelen? He is a good friend of mine and a rotary expert...He might have a good engine. You also could join the facebookgroup (suzuki RE5 owners).... it has a lot of members and is very useful to obtain spares. My English is also not perfect but I think it is good enough as other members seem to understand what I'm writing...
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TT21
1st Gear
Posts: 17
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Post by TT21 on Dec 20, 2016 14:03:16 GMT -5
Good evening,
Thank you for your help.
I speak french, English, German, italian and a little bit of dutch.
I bought this RE5 to an old man in Manage (it was a test ride motorcycle in a Suzuki dealer in 1975/degli moto)
Then the owner made 18 000km in 2 years et let it sleep 33 years without running time.
If you have any adress for the piece, do not hesitate ton contact me in private.
------------------------------------------------------------------------- I can also explain all things i have done since 6 months:
-Wash the carburator
-Deblock the throttle gaz in the motor
-Change the CDI (no ignition before)
-Changer the starter relay
-Control the timing advance and wash the advance cap
Now i test the compression and i have 4 or 5 bar.
So it is why i think my "piston rings" are over..
Thanks for reading
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fonnyfth
1st Gear
Suzuki RE5M (1blue 1red)Suzuki SV650s Burgman 4OO
Posts: 79
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Post by fonnyfth on Dec 21, 2016 4:42:22 GMT -5
Send you a PM ! Feel free to call me. Vous pouvez me donner un coup de fil.. Fth
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TT21
1st Gear
Posts: 17
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Post by TT21 on Dec 22, 2016 12:47:00 GMT -5
Good evening,
I come back with an other way of thinking my problem.
I made the compression test with a tester for a conventionnal motor.
Is there any probability that the result was fault?
Best regards
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Post by raychappo on Dec 22, 2016 12:52:44 GMT -5
The only reliable way to do a proper compression test is either a special RE5 tester
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Post by Jess on Dec 22, 2016 14:42:22 GMT -5
Ray is correct. The only way to get a genuine measurement of the engine is with a proper rotary tester.
The test separates each lobe of the rotor and generates a reading so that you can see what all three sides are doing.
However, it has been my experience that a standard comp tester for piston engines can give you some useful general data.
From what you stated, if I understand correctly, you cranked the engine for 3 seconds of so and got a reading of 4 bar. Unless your tester was defective, that works out to 58 psi. With that reading, in my humble opinion, your engine is a boat anchor.
The rotary is a very durable engine. It will start and idle at 4 bar. However, it will not have enough grunt to get out of it's own way. The ONLY way this failure happens is if the metering oil system is not functioning properly. I have tested engines with 100,000 miles that had 110 psi. Your engine has failed through neglect.
If I am correct in my diagnosis, It will not help you to find new seals, as the engine side plates and rotor housing will be damaged as well due to lack of oil. In short, not rebuild-able in an economically feasible way. (everything is rebuild-able if cost is no object)
Again, Just my opinion. I've been wrong before.
Good luck and regards.
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Post by re5rotary on Dec 22, 2016 16:30:29 GMT -5
With a standard compression tester with a check valve that lets pressure build up to give a reading on a piston engine you will only get an average of the 3 rotor faces. If you take out or otherwise disable the check valve the compression tester needle will 'flick' as each lobe comes up to compression. This will let you see the compression of each lobe, if your eyes are good and quick :-). Still not as good as a genuine tester but better than nothing regards terry
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Post by timpa136 on Dec 22, 2016 17:23:25 GMT -5
Thomas, still no start? I can also explain all things i have done since 6 months: -Wash the carburator -Deblock the throttle gaz in the motor Please, a little more information? -Change the CDI (no ignition before) -Changer the starter relay -Control the timing advance and wash the advance cap Now i test the compression and i have 4 or 5 bar.
Sometimes, If you can get it started, the stuck seal rings may free up with clean oil and filter. Is it possible for some one to pull you? Note also to keep the battery charged. Good Luck.
Tim
EDIT: Caution as towing is very difficult, and be certain the coolant is full and doesn't overheat as soon as it starts.
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