Timing plug: take out with the motor running

Bottom End (crankcases and crankshaft)
Post Reply

Timing plug: take out with the motor running


Post by thepanguy » Thu Oct 07, 2004 1:34 am

Is it possibile to take the timing plug out with the motor running without getting oil everywhere? Its a 52 pan with s&s oil pump

oh yeah, it has a belt drive so the primary chain oiler screw is adjust all the way in. Not sure if that matters or not though

Posts: 788
Joined: Tue Mar 23, 2004 6:57 am
Been thanked: 1 time

Re: Timing plug


Post by Billy » Thu Oct 07, 2004 5:34 am

No that doesn't matter, you will still get every downstroke blow-out of air/oil blast...
I use a "clear view timing plug" to keep things clean & do my timing viewing unhampered, & not rushed!!
So I know it's Right on!!! ;)
A couple bucks, & when you're done put it in your tool-box for next time. It IS a tool..
It can be found at many places such as, http://www.jpcycles.com" onclick="window.open(this.href);return false; part # 4300080 $3.99 retail

Some don't use anything, but rush to "Time the motor" & that does NOT work for me...
Timing is too important to RUSH...
Timing Tip: Clean & w/white, paint the timing marks accurately, prior to beginning the process, & let dry...

Makes visability that much easier. :o

Posts: 404
Joined: Sat Jun 19, 2004 2:58 am

Re: Timing plug


Post by kell » Fri Oct 08, 2004 5:44 am

When I use a clear plug I have to slowly screw it in with the engine running until it just wipes the oil off the spinning crank. Otherwise I can't see the mark. So I'm interested what paint you use that stands up to long term immersion in hot oil.

Posts: 452
Joined: Sat Sep 18, 2004 7:21 pm
Location: Roxboro, NC, U.S.A.
Been thanked: 2 times

Re: Timing plug


Post by Jack_Hester » Fri Oct 08, 2004 7:23 am

Kell -

You can find paint sticks called metal markers, that will stand up to just about anything, except flame heat. And then, most of the time it just discolours. They can be had from most welding supply dealers. Most are white or bright yellow.


Posts: 31
Joined: Tue Sep 28, 2004 9:17 pm
Bikes: 1959 Bastard FLH
1989 FLHTC
Location: Colorado

Re: Timing plug


Post by CknDnr » Fri Oct 08, 2004 7:45 am

I run a short piece of rubber hose into the hole and just touch the flywheel with it. It cleans the oil off of the flywheel and you get minimal oil blast. Just make sure it is long enough to grab hold when you are done.

Posts: 6912
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois
Has thanked: 100 times
Been thanked: 268 times

Re: Timing plug


Post by Cotten » Fri Oct 08, 2004 2:43 pm

I can't see a daam thing with the lucite plugs, except for flywheel runout when it scrapes them.

I start the machine, then block it up straight, then remove the plug after the initial blast has been skimmed off by the scraper. There is still a mist, but it isn't unbearable.

Posts: 474
Joined: Tue Feb 05, 2013 12:25 am
Bikes: 1950 panhead, 1999 FLHTCI, 1987 FLHTC custom
Location: Daytona Beach
Has thanked: 11 times
Been thanked: 12 times

Re: Timing plug: take out with the motor running


Post by Andygears » Fri Jul 17, 2015 9:39 am

As Cotten said, after starting, with bike upright. However, my trick is to use the nose of the timing light, which has a recessed lens to "catch" the mist and keep it off your face. About a 15 degree angle shows the mark, & shines the light. Premature failure of the timing light will be inevitable.

My 2 cents.

Post Reply

Return to “Bottom End / Crankcases”