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Riot Pull start Problem

Printed From: www.racing-cars.com
Category: Nitro
Forum Name: Nitro Touring
Forum Discription: Discussion on everything nitro touring
URL: http://www.racing-cars.com/forum/forum_posts.asp?TID=10863
Printed Date: 16 September 2019 at 9:48am
Software Version: Web Wiz Forums 10.01 - http://www.webwizforums.com


Topic: Riot Pull start Problem
Posted By: Trevor Monahan
Subject: Riot Pull start Problem
Date Posted: 28 January 2011 at 4:47pm
Riot 2 with R18 engine with pull start.

I was getting engine started as per manual. It would start and run a few
seconds then cut out.

Following last attempt the pull start seems to freewheel. Not engaging
with engine.

I took glow plug out and turned engine over with gear cog, I would see
piston rising. It got to top but does not go down, turning cog back or
forward makes no difference.
Any ideas please.
TM



Replies:
Posted By: Anthoop
Date Posted: 28 January 2011 at 10:53pm

Is it new or old?

Pullstarts use a one way bearing and if the bearing is worn/broken/sheetbound it will not grip the crankshaft in that one direction.

If you are rotating the flywheel whilst looking down the plug hole and nothing is moving, then it is a broken rod/crankpin.

 



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Posted By: Trevor Monahan
Date Posted: 28 January 2011 at 11:05pm
It's new only run in. When look down on piston and turned gear could
see piston rising to top then nothing. No movement of piston when
gear turned back or forward. Loosened pull start blasted air down to
remove any crap. Could not get it off as requires lots of dismantling
wanted to get responses in case something easier. Thanks for reply
tm


Posted By: Trevor Monahan
Date Posted: 03 February 2011 at 3:30pm
I've just cleaned bearing in pure alcohol to get rid of grease, oil etc. but no
difference. Looks like new one if no more suggestions.
TM


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