Engine tear down, Engine help Options

[simonjb]

So I decided to clean up my original engine while I run the car with a modified scat engine.

When I drained the oil I found these....two small pieces and the nut.....(dime for size). So I started to tear down the top end and found one cylinder that looked not so good. The others are the same as the right side. went down further and removed the pistons and am now cleaning them all up. Everything looks ok. I really don’t want to split the case or go any further and from what I see inside all look good. So two questions....

1) any thought on why this cylinder isn’t firing right ?

2) can I use something like gasoline or similar to flush and clean out the inside of the case with the crank and oil pump etc still attached?

3) any reason why I can’t use all the old parts ?

4) any thought on the nut?

Thanks....

[simonjb]

anyone?

[Superhawk996]

anyone?

@simonjb

If you're staying with stock cam profile, Web Cam has the stock profile available and of course you'll need to buy the seperate bolt on cam gear. Of course they have other cam profiles available for use with carbs too.

As you've noted the stock cam is rivited to the stock cam gear. As a generalizaion, I'm pretty sure a competent machine shop could drill and tap the stock cam to work with an aftermarket bolt on gear. However, given the risk and expense in doing this, it would make more sense just to buy the Web Cam & bolt on gear for around $300 ish.

The main reason I was curious about your stock cam was that they are usually worn out and need replacment anyway. If the stock cam is not worn, then that is a reasonable indicator of how much mileage was on the engine before this cam gear chipping occured.

Becuase your cam gear is chipped you need to pay special attention to the crank side mating gear. It may be damaged too from whatever caused the cam gear to chip. Pay special attention to this engine. When you've had a gear chip like that something (other engine schrapnel?) got in between the teeth and caused the chip.

Likewise, once I've had scrapnel in an engine like you have had:

1) I consider the oil cooler to be scrap. There is no way to ensure that some particle of debris isn't stuck in the oil cooler waiting to come out only after you've freshly rebuilt your engine.

2) Disassemble the oil pump - schrapnel will score up the pump gears and/or the aluminum pump body damaging it's ability to deliver proper oil pressure. You don't want to rebuild the rest of the engine with a damaged oil pump.

3) All oil galley plugs need to be pulled to ensure there isn't debris stuck at the end of a galley just waiting to come out into you're freshly rebuilt engine.