Morning folks Well I'm getting ever closer to having my 1949 3600 back on the road for June. Finished the floor repairs (ended up a bit of a rush job but whatever, this is a driver for now) and got the fuel tank and seat frame back in the truck yesterday.
I had a new rear window seal installed and it seems good and leak free now, but we had a heckuva rain last night and I found water is coming in from under/inside that "lip" that wraps around the back of the cab; see the attached picture:
Assuming this isn't coming from the rear window seal anymore (never say never I realize, it just seems less likely) any thoughts on the other likely points?
In particular around the outer rear of the cab, there runs a seam that appears to join the upper cab with the lower. Water is sitting in there even though it looks like something that should shed it. Anyone have a thought on that, and IF that is a possibility then how best to seal it? Welding it would be hard to do without affecting the body lines. Seam sealer I suppose if it could tuck up in there well enough but cleaning it out to get a good seal would be tough.
Thanks folks!
1949 Chevrolet 3/4 Ton - Still Solid. Regular Driver OT Vehicles: 1950 Chevrolet Styline (Parts) 1952 Canuck Pontiac Sedan Delivery (Well Underway) 1973 F250 4x4 Highboy 1977 F250 4x4 Lowboy
That horizontal seam was sealed with seam sealer at the factory. If you haven't painted yet, sandblasting along the seam and putting seal sealer there, pushed tightly into the joint would be your best approach, IMO.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Much obliged klhansen. That is probably the culprit. Cab is still chock full of "patina" so fine time to tackle it.
1949 Chevrolet 3/4 Ton - Still Solid. Regular Driver OT Vehicles: 1950 Chevrolet Styline (Parts) 1952 Canuck Pontiac Sedan Delivery (Well Underway) 1973 F250 4x4 Highboy 1977 F250 4x4 Lowboy
3M Panel Adhesive is the ticket for this area after sandblasting and epoxy priming. It is extremely durable, yet easy to sand smooth. Seam sealer used on exterior places such as this area are not as durable, and cannot be sanded smooth.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
52 Carl, ya know.... I have the mixing gun and panel adhesive here I actually thought about that, but went ahead and just finished the job with seam sealer. I should have gone with that first thought. The stuff is amazing, I replaced box sides on my '94 F150 about 5 years ago with it and no movement or cracking despite a lot of abuse.
At any rate, I got it smooth enough for now, it's just a driver and very much looks overall look a work in progress anyway (and it is). I'll dig it out and redo it when the time comes.
Interestingly enough, it appeared someone else had already dug the factory sealer out, it was completely devoid of any sealer. When I blew it out with compressed air, it was just going straight into the cab, and I couldn't find any trace. I imagine whoever did that probably assumed (as I did when I looked at it) that the outer cab slid over a lip and that water would shed off. The whole truck has been in primer since the 90s. No wonder it was leaking!
Never a dull moment.
1949 Chevrolet 3/4 Ton - Still Solid. Regular Driver OT Vehicles: 1950 Chevrolet Styline (Parts) 1952 Canuck Pontiac Sedan Delivery (Well Underway) 1973 F250 4x4 Highboy 1977 F250 4x4 Lowboy
