I took the head off today and from what I can read with my calipers the head gasket is .050 thick, and I gather that the original gaskets where just metal. The one I removed had layers to it. My question is now, how do I tell if the head was machined? What is the best way to put the head back on? I assume you would put some sort of dowel pin in a couple of places to keep the gasket in place, and to guide the head on. Is there any kind of sealant used? What's best to use as a lubricant when honing the cylinders?
How do you tell?
- Thread starter mannella
- Start date
The best way to tell is to measure the volume of the combustion chambers.
It's called CC'ing the chambers as it gets measured in cubic centimeters.
If you search around you'll find a number of different ways to do it, including kits that will include burettes and whatnot. Most will recommend a piece of plexiglass with a small hole in it placed over a chamber with the valves in, and measuring the amount of liquid it takes to fill. I just used a graduated syringe.
There's probably some vids on utube...
As to the guide pins; the head bolt holes are a standard 7/16 IIRC, and I bought a couple of longish bolts and cut the heads off. You could use some old head bolts if you have any.
I'd have to ask a machinist about honing...
It's called CC'ing the chambers as it gets measured in cubic centimeters.
If you search around you'll find a number of different ways to do it, including kits that will include burettes and whatnot. Most will recommend a piece of plexiglass with a small hole in it placed over a chamber with the valves in, and measuring the amount of liquid it takes to fill. I just used a graduated syringe.
There's probably some vids on utube...
As to the guide pins; the head bolt holes are a standard 7/16 IIRC, and I bought a couple of longish bolts and cut the heads off. You could use some old head bolts if you have any.
I'd have to ask a machinist about honing...
If I recall correctly Ford used to have a thin laminate type head gasket in late 60's and early 70's.
If the head was pulled anytime in the early or late 70's it might have that laminate type head gasket instead of the steel shim head gasket.
You need to look at the top of your log head and read the part number and see if it is a flat top log or a hex style log. The go here: http://classicinlines.com/SmallSixSpecs.asp and see what the stock CC volume should be.
If this is for the 78 Fairmont then it should spec out close to 62cc's.
If the head was pulled anytime in the early or late 70's it might have that laminate type head gasket instead of the steel shim head gasket.
You need to look at the top of your log head and read the part number and see if it is a flat top log or a hex style log. The go here: http://classicinlines.com/SmallSixSpecs.asp and see what the stock CC volume should be.
If this is for the 78 Fairmont then it should spec out close to 62cc's.
mannella":1us8rx1e said:
Depends on the head gasket. Unless using a steel shim head gasket no.
Most head gaskets you get nowadays are installed dry and clean. You torque them down in three stages and wait about 30 minutes and recheck the torque settings. Some head gaskets now say you dont have to retorque but I like to double check.
For a 65 head chambers should be between 48cc and 52cc.
as for sealant, you NEVER use silicone or the like, but you CAN use the copper-coat spray if you're concerned about teh quality of the seal. its not necessary, but sure can't hurt.
