JOSS ENGINES W2 468ci. What will it make??
Well, we were able to take some time yesterday to spend on the engine. We installed the main bearings, and started checking piston to valve clearance. Now, these are Econo W2's which are 54cc. You may wonder, why such small chambers. A regular Econo has basically a stock open chamber. These heads have been cut .100" which has made them into a closed 54cc chamber. It is kind of a catch 22. The chambers are a lot better now, but piston to valve can become an issue. And it is in this case. Luckily it is pretty close, so, we are going to cut another .040" out of the valve reliefs. Here are some pictures from yesterday....
Main bearings in...
Setting the crank in and bolting it down...
Number 1 rod and piston at TDC...
Cylinder head on with soft springs and valve train in place on number 1...
Now, one other thing to note, the W2 Econo head is a 59 degree head. Here is some pictures of the modification needed to run them on the 48 degree block. Things get tight, but it works.
Planning to have the pistons cut on Monday, and then we will continue with the assembly.
-Kenny
Well, we were able to take some time yesterday to spend on the engine. We installed the main bearings, and started checking piston to valve clearance. Now, these are Econo W2's which are 54cc. You may wonder, why such small chambers. A regular Econo has basically a stock open chamber. These heads have been cut .100" which has made them into a closed 54cc chamber. It is kind of a catch 22. The chambers are a lot better now, but piston to valve can become an issue. And it is in this case. Luckily it is pretty close, so, we are going to cut another .040" out of the valve reliefs. Here are some pictures from yesterday....
Main bearings in...
Setting the crank in and bolting it down...
Number 1 rod and piston at TDC...
Cylinder head on with soft springs and valve train in place on number 1...
Now, one other thing to note, the W2 Econo head is a 59 degree head. Here is some pictures of the modification needed to run them on the 48 degree block. Things get tight, but it works.
Planning to have the pistons cut on Monday, and then we will continue with the assembly.
-Kenny