Sunday, June 25, 2017

Engine Rebuild Part IV - Crankcase Assembly

The engine bits were rebuilt and ready for assembly. The cases were soda blasted, questionable threads had a die run in them, the crank was rebuilt, and new bits were ordered  from England. The cam bearings and lifters looked good so they were cleaned up and left as is.

The crankshaft ready for the drive side bearing to be installed. 

Once everything was cleaned and reconditioned the cases were heated in an oven and a new drive side bearing and timing side retainer were drifted in. The drive side case and bearing returned to the oven and were heated together to facilitate installation on the crankshaft. Per the manual I tightened the drive side roller bearing down using a spacer to hold its location when the cases were brought together. 

The drive side ball bearing in place.

 The crankshaft fit into the drive side bearing and a spacer holding things in location. 

The timing side roller bearing outer surface staked into place.

The engine case was propped up on blocks with the timing side up. The roller bearing was heated and installed with 1/8 shims between its bottom and the crank cheeks to maintain a 1/16 spacing from the journal outer end. This spacing is called out in the manual and was measured before the old bearing was removed.

Timing side roller bearing in place. 

An oil cooler and skid plate were options for '69  and I am putting them on my Interceptor. The oil cooler came with longer bolts to accommodate its brackets but not the width of the skid plate. I also missed on the rear engine mount as it requires a longer bolt for fitment of the skid plate. Back to the RE parts store for more bits. I find many parts added to a build need to be fit. The skid plate was no exception as its bolt holes were off by 1/4 inch. The rear brackets were bent to get things close and the holes were opened up. The front holes had to be elongated by 1/16 of an inch to put things right. It lost a lot of paint in the process and was refinished. Another lesson relearned. 

Checking to see if all the holes line up and finding they do not. Brackets bent, holes opened up a bit, items repainted and on we go.....  

"Honda Bond"  was applied to the drive side case and the assembly was bolted together. The hardware was tightened down and excess sealer was removed. The Honda Bond seals well and is grey in color which I like. 

Bolted together.......

The transmission installed and the whole unit prepared to go in the frame.

Now that the engine cases are together it can go back where it belongs. All of the pieces have been refurbished or replaced with a few exceptions. Top end assembly should be pretty the thinking goes. 

Out of the archives.....Dad was building Chevy's in '55. 

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