Vintage Flathead 6 Mopar Manifolds

In this episode of "Vintage Mopars" I discuss intake and exhaust manifolds used on vintage Mopar flathead 6 engines.

[charlesg]

Yes indeed! My 41 was having the same issues and when I fixed the heat riser/manifold heat control the problem was solved.

[stever]

My first car was a 1965 Plymouth Barracuda with a 225 Slant 6. I liven in Minnesota and the winters were brutal. If my Heat riser diverter valve stuck I did notice a deffinate problem starting and running until the carb would warm up. A squirt of WD40 usually freed it up and solved my cold starts and running.

On my 37 Plymouth this Heat Riser works fine and I have no problems with start ups or cold running. Be it that I now live in England and winters are non-existant. Especially when your use to Minnesota winters.

Good video! Keep em coming Keith!

[tombob]

Great lesson. One can see the simple design that made these cars so reliable and easy to fix 👏👏

[a]

Maybe going to need to pull the studs out of the intake and install longer studs. Great video

[JazzStrat]

Loving your videos too, always look forward to new posts! Best to you and yours

[FlatheadTerry]

Thanks Keith ("Mr. Manifold")!

[ksmith]

Really enjoyed seeing you figure out the heat riser as well, since I just redid the heat riser on my 1947 CJ2A as it was stuck half open as had similar issues with hard starting during the summer after stops while doing errands. As for books yeah I search Kijji and Ebay all the time for stuff just picked up:

1947 CARTER CARBURETOR SERVICE INSTRUCTIONS AND MOTOR TUNE UP MANUAL

1954 CARTER CARBURETOR SERVICE MANUAL AND PARTS CATALOG (Might have your Carb in there if you need info)

1950 AUTO-LITE ELECTRICAL EQUIPMENT MAINTENANCE AND OPERATION MANUAL

VINTAGE SUN DOCUMENTS ON ENGINE SPECIFICATIONS WHEN I PURCHASED A VINTAGE SUN TACH/DWELL METER

Keep up the exciting videos and vintage car parts are essential to keeping us sane during lock downs... guess the government thinks else wise.

[mikesilva]

Love your videos! Thanks again for the wonderful information you have been providing us.

[p]

You’re a nice guy, informative. Just subbed

[vintagesirvivor]

Great video Keith. As you can imagine, I found it very interesting. hahahaha!! I'll look forward to the followup on mounting your new Phenolic spacer. It looks like you'll have to invent a stud extension somehow. Just like your car, my studs are too short for a phenolic spacer. I stacked 4 thick home made gaskets. Which was as much as I could go. My studs don't quite extend through the nuts holding the carb on. So I can't go any thicker. Having said that my car starts instantly when it's warm after I shut it off. As for the heat riser spring, I think I'll just leave mine unconnected now. "Once bitten twice shy" Besides here in Sidney, Most sunny winter days ( cruising days) the temp rarely gets below 6 degrees at high noon anyways. If it's that cold I just let the car warm up anyways before taking off. Btw, my 251 has the tall version of that intake manifold.

[nicolasbuchanan]

Hey just wanted to say that you’re videos have been a big help and inspiration for me, I’m fixing up an old studebaker with a flathead 6 and I got no idea what I’m doing so you’re videos have given me a lot more confidence

[p]

Grew as a young ladd, no internet only library’s. Still reading

[kennypinkerton]

The vacuum advance that goes to my carb (Maybe its the choke) is twisted nearly shut. I don't know why. It's a 1956 Plymouth Savoy Flathead Six, with 12v. And a three speed manual on the column.

[chrisnz]

Would you sell one of those hubcaps mate? Noticed you have a box under your bench... lol. For a 37? No stress, love your work and envy your spares inventory. Thanks for another great video

[fernandomendes]

Hi Keith.I would like to know what is the purpose for the different shaft distributor lenght(IAT 1035 and IAT4011).Best Regards.

[richd]

37 Dodge 48 Dodge. 21 Dodge in the houzz!

[TarMan]

I just picked up a 38' plymouth, your videos are awesome! Do you by any chance have any resources you could recommend for how tos and where to start?

[ava]

Great videos. The video's are great in helping me to build my 48 coupe. Is there any reason why a well vetted and maintained 1948 plymouth can't be driven daily? 30, 000 plus miles a year?

[daveallen]

I see you're a rider - what kind of bike you got there? Looks like disassembled forks on the bench - for that bike or another?

[BA-wxvs]

Keith, quick question: would you be willing to sell that spare intake you have?