Chev 216 loose piston pin - which one ?

[Phil Waterman]

Hi Mike

Depending on the application and year they moved the vacuum tap around on the manifold. Is the manifold off the engine? If so I would just drill and tap the manifold near the carb. Do not try this directly under the carb as the heat riser brings the exhaust gases up in that big area.

Another alternative is make an adapter plate for under the carb and tap the vacuum through the side of the adapter. This is how they tapped the vacuum for the brake booster on some of the engines.

Take a look at http://www.canadianmilitarypattern.c...ifications.htm some vacuum tap locations.

Cheers Phil

[Mike K]

Originally Posted by Phil Waterman

Hi Mike

Depending on the application and year they moved the vacuum tap around on the manifold. Is the manifold off the engine? If so I would just drill and tap the manifold near the carb. Do not try this directly under the carb as the heat riser brings the exhaust gases up in that big area.

Another alternative is make an adapter plate for under the carb and tap the vacuum through the side of the adapter. This is how they tapped the vacuum for the brake booster on some of the engines.

Take a look at http://www.canadianmilitarypattern.c...ifications.htm some vacuum tap locations.

Cheers Phil

Ok Phil. Good information there on your web site . The carb insulator that sits on the manifold needs to have the cut outs for the vacuum port . My Rochester has the port drilled under the carb base .

I bought one of these

http://www.classicparts.com/1937-54-.../#.VXt0cEp--Uk

Looking at their web site , classicparts have 216 parts cheaper than other sellers, eg

http://www.classicparts.com/1937-53-.../#.VXt0yUp--Uk

[Phil Waterman]

Hi Mike

Don't remember seeing that source, will have to do some looking around on that site to see what they have.

With the new gas in the US the carbs really like the insulation spacer.

The spacer I'm talking about is little over 1/2 inch thick and fits below the insulation block.

Cheers Phil

[Mike K]

Originally Posted by Phil Waterman

Hi Mike

Don't remember seeing that source, will have to do some looking around on that site to see what they have.

With the new gas in the US the carbs really like the insulation spacer.

The spacer I'm talking about is little over 1/2 inch thick and fits below the insulation block.

Cheers Phil

Your 49 Lincoln project reminded me about the 1946 or 7 Lincoln convertible I helped to move , years ago. It was a V 12 side valve engine in that car . A similar car was in the Betty Davis movie about the 2 sisters .

The 46 was owned by a Kiwi , he shipped it from Melbourne to NZ , we loaded it onto a trailer and drove to the docks at Port Melbourne around 1 am in the early morning .

The car was stored down in a SE suburb and I followed in my ute as he drove it unregistered to Moorabbin , to await the trip to the docks on a trailer. As we drove to Moorabbin, The looks from the motorists at the traffic lights was a look of amazement , an old dusty crimson convertable with a white top and a huge long bonnet

[Mike K]

good info here

http://pugetsoundvintagechevrolet.or...h%20photos.pdf

[motto]

Mike,
I must admit you have a knack for sourcing stuff. Looking at the insulator, it may not give you what you want.
Perhaps what you may need is one of those gaskets with the four notches. The four notches are there so as you can put the gasket on any which way and one of them will give connection from the vacuum passage to the manifold interior. Depends on the carburettor I guess.

Dave

[Mike K]

The HOT ROD radiator is fitted into the C8 . It is slightly narrower compared to the original radiator, height is OK .

I will need to make a thermostat housing with a 1 1/2" hose fitting , the hose outlet on the new radiator is 1 1/2" . If I ever win lotto I will have the original radiator recored .

[motto]

The GMC 270 uses a 1-1/2" diameter top hose if I remember correctly. I may be able to help you out with the top section of one of those to save you having to make something up. The lower section should be the same.
Let me know if you're interested and I will check it out.
I've also got a quantity of those carb gaskets with the four notches though I'm not certain they are the correct size for your application.

Dave