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Waiting for HM1103. Might as well build a motor!

Started by Spuddyboy, September 10, 2007, 08:13:15 PM

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Spuddyboy

Each bore is slightly different, so you need to gap rings in sets for each cylinder.  Keep track of them!

Spuddyboy

Next we assembled pistons and rods.  We lettered each piston, and matched them with ring sets.  

Spuddyboy

We checked ring to groove clearance before installing rings.  

Kerianne's fingertips are still healing!  :'(

Spuddyboy

Piston assembly is lubed and placed in ring compressor and inserted in bore.  

Spuddyboy

Piston is lightly tapped into bore.  This will not damage rings.  

Spuddyboy

We had trouble deciding which way the pistons went.   :o

We finally had to pull a head out and hold it up to make sure.

This orientation is correct but the writing etched on the piston is upsidedown. This is what confused us.  

Spuddyboy

This is why we notched the block in the beginning.  The Rod bolt head would have broken off on the bottom of the cylinder.  

Spuddyboy

Also make sure the rods clear the main girdle.

Spuddyboy

Gene (Kerianne's dad) stopped by to give us a hand and talk us through some things.  He built a few performance engines in his day.  

Spuddyboy

Kerianne's torqueing the main cap bolts with the girdle installed. They have to be torqued twice.

Spuddyboy

Torqueing the rod bolts.  These have to be torqued 4 times.  

Spuddyboy

Timing chain was installed next.  Line up the marks between the two sprockets.

Spuddyboy

Windage tray and oil pickup were installed. Notice the tight clearance between the edge of the windage tray and the pickup.  Loctite is used on the oil pump and windage tray fasteners.

Spuddyboy

"Big Assed" Oil Pan was dry fit.  It holds 9 quarts and has baffles and trap doors out the wazzu!  8-)Clearance between bottom of pickup and pan was checked.  

berzerko

Very cool never built a motor makes me want to try!!
4v mod motor with a carb hm 1075