Ray's engine, more goodies

[Hap Waldrop]

Here's a shot of the front of the block, with timing cover, Romac harmonic balancer, and oversized APT water pump pulley installed. The APT O/S water pump pulley is a inch bigger in daimeter than the original pulley, so this will slow the water pump down and help the engine cool better. I couldn't stand it, I took it over to the buffing wheel and buffed it to a gloss, you may need sunglasses to view this photo

 

[Hap Waldrop]

Here's a shot of the Fidanza flywheel installed, Ray's engine has the Rivergate Datsun 5 speed backing plate with the engine rear seal, well as it turns out the 4 bolts that hold the seal housing onto the backing plate interfere with the back of the Fidanza flywheel, I ended up losing the split lock washer on those four bolts, grinding the heads of the bolt down a bit, and using red loctite, now everything clears fine. A word of caution on aluminum Flywheels, Fidnaza is really the only vendor these days, but this was also the case with the Tilton units as well. On most bolts there is a small step under the head of the bolt, and this compresses aginst the aluminum on the flywheels, over time it can create spider cracks leading from the bolt holes, it's a real easy fix, all you need to do is use a chamfer bit in a drill or drill press and increase the chamfer around the bolt hole to not let the step under the head of the bolt compress the aluminum. I tried for years to get Fidanza to correct this, but it never happen, if you do this simple mod, you can rest assure you will not get spider cracks down the road with aluminum flywheels, Tilton had the same issue. I seen more than my fair share of aluminum flywheels fail because of this, mostly just noticing the spider cracks during a race engine refresh, but I never seen a a spider crack develop if this simple mod is done.

 

[14dna]

Hap!!

Lookin' at all that shiny has made me blind.
That's gonna be a nice engine when she's done.

You are an artist Hap!

Dave

 

[jlaird]

Obviously this engine is too good for Ray. Sigh.

 

[MCS]

Hello Hap,
thanks for the info, I just received my Fidinza flywheel. I also will be installing the rivergate plate. Great timing for me.
Phil