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engine noise 650 dnepr


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#1 m mccray

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Posted 13 January 2018 - 07:28 PM

I finally got my 1974? Dnepr sidecar rig started. The engine runs excelent except for a  knocking or loud tapping noise coming from the front timing cover area. Every so often the noise will go away for a few seconds [ when this happens the motor is pretty quiet ] then it resumes. you can rev the engine and it will quiet down a lot. Any ideas what this could be?

#2 propwash

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Posted 14 January 2018 - 10:06 AM

If really coming from timing cover, it could be a couple things.
1) your timed breather may need a little oil. You may be able to squirt some oil into there from the exit port above the exhaust pushrod on the right hand side.
2) more likely, you alternator gear nut is loose.  It is worth pulling the alternator and investigating. If the nut falls off, it will damage the gear tower.

#3 m mccray

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Posted 14 January 2018 - 10:17 AM

hey propwash I really appreciate the feed back. this is the first soviet bike I have.  had about about everything else but these are new to me.They don't seam to complicated though. I will check out what you have said. thanks.  Monte.

#4 Garbage Bear

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Posted 14 January 2018 - 12:34 PM

Timing gear tap is easy unmount even with engine on the frame. You can take a look inside without big effort.
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#5 m mccray

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Posted 14 January 2018 - 04:23 PM

thanks Garage Bear

#6 Garbage Bear

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Posted 15 January 2018 - 01:11 AM

Hei... No problem at all mate
Welcome
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#7 m mccray

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Posted 15 January 2018 - 11:49 AM

Garage Bear. do you have to pull the ignition to get the timing cover off?

#8 Garbage Bear

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Posted 15 January 2018 - 01:54 PM

Only the centrifugal timing advance. It has only 1 screw. Before you can take a picture to ensure to put all back properly
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#9 m mccray

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Posted 15 January 2018 - 02:29 PM

hey garbage bear, Guess i was calling you garage bear? thanks for the info and where is Transilvania?

#10 Garbage Bear

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Posted 16 January 2018 - 01:39 AM

No need to thank,s me mate.

Is the land where Bram Stoker put the famous story of Dracula vampire Prince.:)


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