Need Help With Door Gaskets Harman Mark II

Bear038 · Post by **Bear038** » Wed. Dec. 29, 2010 12:21 pm

I have a Harman Mark II, and would like to take advantage of the higher temps the next few days to shut the stove down and replace the gaskets in both doors, only I have never done this before.

Two Questions:

First what size gasket roping do I need, and how much, and what cement is best?

Second, basically how do you do this job?

Any help is greatly appreciated. Y'll have tought me so much this year, I am certifiable hooked on using coal, so here I come back to the well for another batch of your collective knowledge and experience.

lowfog01 · Post by **lowfog01** » Wed. Dec. 29, 2010 1:52 pm

I always have a second pair of hands around when I do this. I don't know the size of the gasket because I do mine in the summer and always take the old one with me. Check the owner's manual. I take the door off and lay it on my table. I remove the old gasket and thoroughly clean out the gasket groove. I use acetone to get it really clean. Then I fit the new gasket into the gasket groove and cut it to size. Be careful not to pull it tight and don't stretch it. Once I have it sized, I remove the new gasket and apply an even amount of "Meeco's Red Devil, Gasketing Cement and Stove Sealer in the gasket groove. Be careful because the cement comes out fast, way fast! Once that's done put the new gasket in place. Take the door and with the help of your second pair of hands rehang it. Hang a piece of newspaper over the door and new gasket and shut the door. The newspaper will stop any oozing cement from getting on your stove front. Close the door and wait 2 hours. You are done. Repeat for the ashpan door. It's actually pretty easy. Good luck, Lisa

CapeCoaler · Post by **CapeCoaler** » Wed. Dec. 29, 2010 11:09 pm

I use Rutlands Water Glass...
After a cleaning of the old groove...
Just paint it in...
No oozing...

Bear038 · Post by **Bear038** » Thu. Dec. 30, 2010 4:18 pm

Got the infor I needed from a Harman dealer today, it takes 1/2' rope gasket, both doors

RAYJAY · Post by **RAYJAY** » Thu. Dec. 30, 2010 5:17 pm

the last stove I done I used the the rutland 500deg high temp silicone work better than the gasket cement

jeff

rberq · Post by **rberq** » Thu. Dec. 30, 2010 8:21 pm

lowfog01 wrote:Be careful not to pull it tight and don't stretch it.

Ditto that. Also try not to twist it. If you twist or stretch you can easily have spots where the gasket winds up thinner than elsewhere, and might not seal evenly all around the perimeter. I leave the rope a little long and trim the final inch or so after the rest is in place so as not to be tempted to stretch it.