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General Category >> Rubber Side Down! >> timing cover: "stuck like a pig!"
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Message started by JohnBoy on 11/06/09 at 08:00:58

Title: timing cover: "stuck like a pig!"
Post by JohnBoy on 11/06/09 at 08:00:58

I tried the valve adjustment link but it is not opening, so I turn to you all...again.
I am having a devil of a time getting the inspection port unscrewed.
This is clockwise to tighten and counter-clockwise to loosen right?
I think that the PO was a little too fond of thread locker.

Title: Re: timing cover: threaded CW or CCW?
Post by justin_o_guy2 on 11/06/09 at 08:35:30

These are a known hassle if someone applies the Slightest bit of "enthusiasm" tightening them down. Normal threads, so yes, CCW to take it off. It has an O-ring for a seal, no threadlock is used on any Ive seen. Build a tool that fills the gap nicely, radius it to fit the curve of the groove. I have washers sandwiched tightly on a bolt, ground to fit. Someone has discovered that an old brake pad fits okay enough. Be careful, these things arent thick.

Title: Re: timing cover: threaded CW or CCW?
Post by JohnBoy on 11/06/09 at 08:46:14

much thanks!
I built a tool that fits on a 3/8 socket and applied a breaker bar...no luck!
Then it was on to the impact driver, but I was afraid that I would punch it through the side of the case.
So...on to the air wrench!

Title: Re: timing cover: threaded CW or CCW?
Post by Serowbot on 11/06/09 at 09:08:42

It'll be the o-ring that's causing the stick... try some penetrating oil...
and use short sharp taps, instead of brute torque...

Title: Re: timing cover: threaded CW or CCW?
Post by justin_o_guy2 on 11/06/09 at 09:27:46

Then it was on to the impact driver,

Air, okay, but Id be afraid of using a hammer strike type on this plug.
Yes, get something soaking in there. So many great penetrants out there, Kroil is a common one, highly regarded & rightfully so, IMO. One thats not well known is Wintergreen oil. I used it to soak some stuff I found out back, oilfield stuff, been laying out there for at least 20 years, IDK why, or how, but the thing let loose after a few days of dosing,didnt even break the wings off the wingnuts. IDK what type of metals they are, but its not pitted like I think it should be..still, point is, Wintergreen oil isnt too pricey, not exactly toxic, smells good & does a good job.,

Title: Re: timing cover: threaded CW or CCW?
Post by JohnBoy on 11/06/09 at 12:19:42

so much for the air wrench!
http://lh3.ggpht.com/_TCSH6bqjHEM/SvSC4P9KuGI/AAAAAAAAAdc/NUD2Yfj4R-c/s512/inspection%20cover%20tool.jpg
The socket I modified twisted like a soda straw at 90psi.
I will try the penetrating oils.
What are your thoughts on riding it enough to heat it up, and then chilling the inspection port with canned air prior to unscrewing it?

Title: Re: timing cover: "stuck like a pig!"
Post by Serowbot on 11/06/09 at 12:33:09

Oil.... and use a sharp, jerking twist, on the wrench to break it free,...

I'm almost making grunty noises, while I describe it... :-?

Title: Re: timing cover: "stuck like a pig!"
Post by BurnPgh on 11/06/09 at 12:44:56

I always just use the forked end of a hammer. Push on the head of the hammer to keep it in the slot and angle the handle as close to the jug as possible then twist slowly. Every other method I tried has mauled the slot but I havent had an issue since I started using the hammer. Just dont snug it up too much putting it back.

Title: Re: timing cover: "stuck like a pig!"
Post by justin_o_guy2 on 11/06/09 at 14:01:07

I dont pull that cover when I do the valves. I can get TDC with a wooden dowel

Title: Re: timing cover: "stuck like a pig!"
Post by Oldnewguy on 11/06/09 at 15:40:38

Try using a square electric box cover with vice grips at 9 and 3

Title: Re: timing cover: "stuck like a pig!"
Post by Phelonius on 11/06/09 at 15:50:12

Perhaps someone used J.B.Weld for thread lubricant.

Phelonius

Title: Re: timing cover: threaded CW or CCW?
Post by Yonuh Adisi on 11/06/09 at 16:07:28

7A5F585E725F49300 wrote:

What are your thoughts on riding it enough to heat it up, and then chilling the inspection port with canned air prior to unscrewing it?

I would say that is definitely worth a try. I personally have never had any trouble getting mine off with just a large screw driver. But I would try your idea, the reasoning is sound. I wouldn't doubt if the PO cross-threaded the thing.

Title: Re: timing cover: "stuck like a pig!"
Post by Routy on 11/06/09 at 16:50:21

Wow,.....all that made me tired ! I hope I never have to remove that plug !

Title: Re: timing cover: "stuck like a pig!"
Post by justin_o_guy2 on 11/06/09 at 17:19:10

If you do, use never seize going back together & remember that plug is easy to stick bad. Now that I think about it, I should probably give mine a twist next time Im out on it, just to see if its stuck.

Title: Re: timing cover: "stuck like a pig!"
Post by Oldfeller on 11/07/09 at 04:05:25

The threads aren't the issue, they are large coarse acme type threads that are oil lubed from the other side. The issue is rubber sticktion from the huge "O" ring that has been mashed totally flat by over tightening then heat welded to the case by engine heat.

We have had posters have to break that little round cover up with a chisel to get it out.

It can be a right pain in the ass, so just snug it down with light finger pressure -- with all the rubber behind it, it will not vibrate free or leak.

Title: Re: timing cover: "stuck like a pig!"
Post by Toymaker on 11/08/09 at 04:10:54

I took a large washer and ground it down to fit (tight) and then used a big a$$ crescent wrench....It finally came off.

Title: Re: timing cover: "stuck like a pig!"
Post by Digger on 12/16/09 at 21:46:40

For future reference, here is a tool that works well:

Timing Plug Wrench (http://www.motionpro.com/motorcycle/partno/08-0087/)

IHTH someone!

Title: Re: timing cover: threaded CW or CCW?
Post by matt on 12/17/09 at 11:59:05

496C6B6D416C7A030 wrote:

What are your thoughts on riding it enough to heat it up, and then chilling the inspection port with canned air prior to unscrewing it?

Heating then chilling doesnt sound to good for the purpose of loosening, i think it hardens metal..

My cover was stuck like a pig too, everything i tried would fail, sometimes ending up with a small scratch or chip in cover slot. I got ticked, then it hit me.

Go riding for a while until you feel rejuvinated, come home grab a pair of gloves, large washer, screw driver and try again, So much easier while it was hot. I laughed after it popped loose. After that i screwed it back in gently becasue it was already hot and i couldnt check the valves so i went for another ride around town, after i got home made sure it was loose for the next morning.

In a nut shell i heated her up then popped her loose no pun intended

Title: Re: timing cover: threaded CW or CCW?
Post by verslagen1 on 12/17/09 at 13:28:29

616D7878643D3D343B0C0 wrote:

Heating then chilling doesnt sound to good for the purpose of loosening, i think it hardens metal..

You have to heat it to near melting, 800-900°F for aluminium.

The temp's we're running are not a concern.

Good tip about breaking it loose while still hot. I'll keep it in mind.

Also, a old brake pad fits in the slot real tite. The skinny end fits in w/out mod and use a wrench to turn. Or mod the retaining tab to fit the slot perfectly and no wrench needed.