1972 Dog House Cooling?

[grandpa red]

So I bought a '72 and its missing the lower heater box tins for sure.
It has J pipes installed so I guess the tins were not reinstalled.

From a search here it looks like the motor should have the dog house with vents and a thermostat ?

The motor is stamped with AD and has dual ports.

Im going to order some used heater boxes and want to get the cooling system back to normal.

I am going to be removing the motor for further inspection.

[gt1953]

On the heater boxes do source out stock german ones in the classifieds. Your lower tins also. So much easier to do with engine out.
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Volkswagen: We tune what we drive.
Numbers Matching VW's are getting harder to find. Source out the most Stock vehicle and keep that way. You will be glad you did.

72 type 1
72 Squareback
({59 Euro bug, 62, 63, 67, 68, 69, 73 type ones 68 & 69 type two, 68 Ghia all sold})

[grandpa red]

Yep Im going to buy some used VW boxes from here.

So should the motor have the flaps and thermostat?

[Starbucket]

Yes buy a dog house fan shroud with flaps and thermostat for proper cooling and warm up.

[Xevin]

[Cusser]

[bluebus86]

if you pull the motor, take the time to remove the cylinder tin to expose any cooling air blocking debris over the cooling fins. also look for casting flash on the fins, particularly on the heads, the flash left from casting can restrict, even fully block airflow thru some of the passages. Use a Dremel, files, knife as needed to remove the flash. There sometime are supposed thru cooling holes near the valve guides that can be totally blocked with casting flash.

Bug On!
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Stop introducing dirt into your oil when adjusting valves ... https://www.thesamba.com/vw/forum/viewtopic.php?t=683022

[grandpa red]

Thanks for the info everyone!

[Eric&Barb]

Also helps to re-torque all the engine case fasteners as if assembling. Then same for the head stud nuts. Surprising how loose those get.
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In Stereo, Where Available!

[wcfvw69]

[Rome]

When you find the original cooling tins that go beneath the engine, chances are that the welded nuts' threads will need to be cleaned out and the threads chased. Use an M6 x 1.0 tap for them. Also, the screws that hold the cylinder cover tins to the cylinder heads near the spark plug holes tend to seize from age. Before you break the screw heads due to rust, remove the engine and apply heat from a propane or MAP gas torch to the heads, then give the screw heads a hard tap straight down with a hammer to shock the screw threads loose. Helps to use anti-seize grease on the screw threads for all of the engine so that next time you need to take the tins off, they will loosen easily.

For the heater boxes, the nuts that hold them to the cylinder heads are M8 x 1.25 threads. Chase the heads' studs with a die of that size. Same size as most other M8 studs on the engine, as well as the fender and bumper attachment bolt threads.

[Cali_Army_Guy]

I think I have some sled tins floating around in my garage. I’ll look when I get home tonight.
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2015 VW Passat Wolfsburg Edition
1966 VW Beetle - Sold

[Cusser]

[grandpa red]

Thanks again.
Now I just have to find the time and order the stuff I need.

I just bought this a little over a month ago and want to fix a few things before I drive it again.