Walkway grid keeps coming up on MTH Premier GP38-2,now needs cosmetic repair.

Well, making it look "new" now might be a challenge.  The right glue IMO would be Walther's Goo, I've stuck a number of walkways down with that, and they've never come back up.

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I have never had Gorilla glue fail like this. Sounds like there is a contaminate on the walk way part. Oil, grease or silicon, maybe from factory lube or after lube application. My solution would be take the parts off, clean with a good solvent, try again and touch up paint. good luck.

Thanks guys,this was the first time I used gorilla glue and not superglue. Guess I will wait and see if it holds.

This engine was way overloaded with smoke liquid by my young nephew a couple years ago,guess that is the contaminant. By the way I found some tru-color Alaska blue paint on ebay and will try a touch up.

Don't think a contaminate caused it to buckle, I had several of these at one time and one or two had a buckled walkway, and each time it was because of fitment. I carefully pulled it all the way off, cleaned both surfaces carefully, the walk way can get bent easily. Used Walters Goo and carefully started at one end and slipped it into place. In my case it looked like at the factory they laid into place starting at both ends. It was under tension and sooner or later it was going to pop up. SD40-2 also had this problem, easy fix.

Good luck with your repair

Clem 

Thanks Clem.

Yes,a lot of tension here.

Johnny you don't have to get all the old glue off, the Goo will stick.

I used Bob Smith 30 minute two part epoxy (found at Hobbytown).

It doesn't expand like Gorilla glue.

Thanks Clem and SPSF.