2002MotorRebuild - Revision history

Millsj at 18:51, 3 February 2006

2006-02-03T18:51:09Z

←Older revision		Revision as of 18:51, 3 February 2006
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	[[Image:block cleaned.JPG]]		[[Image:block cleaned.JPG]]
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		+	<b>Here is the motor being delivered to my shop</b>
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		+	[[Image:motor being delivered.JPG]]
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		+	<b>New head</b>
		+	<br/>Here is the new head all nice and clean with a reground 278 degree cam, new valve guides, stems, and seals
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		+	[[image:rebuilt head.JPG]]
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		+	<b>A view of the intake valves</b>
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		+	[[Image:two intake valves.JPG]]

Millsj at 03:15, 31 January 2006

2006-01-31T03:15:25Z

←Older revision		Revision as of 03:15, 31 January 2006
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-	<b>Here ~~is the bottom~~ of the ~~head~~</b>	+	My 2.0 liter M10 BMW 4 cylinder motor is being rebuilt by Terry Tinney in Livermore, CA. The modifications include:
-	<br/>~~All of~~ the ~~valves~~ were ~~in perfect order except for that~~ was ~~irregularly~~ worn ~~due~~ to ~~a ruined~~ valve ~~guide~~.	+
		+	* Bead blasting
		+	* Decking
		+	* Honing
		+	* Polishing
		+	* Reground more aggressive cam, 280 degrees
		+	* Mahle 9.5:1 high compression cast pistons
		+	* New bearings, seals, rings
		+	* Sachs performance clutch kit
		+	* Complete balancing
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		+
		+	As many of you know I pulled the motor earlier which I also documented [[EngineRebuild\|here]]. I definitely have to thank my friend Duane for helping me on this one. Anyway, onto the photos.
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		+	<b>Here are two pictures of the engine when I cracked it open</b>
		+	<br/>As you can tell, the piston rigs were worn badly, allowing oil to seep into the combustion chamber. It was especially bad on cylinders 1 and 2. Turns out one of the exhaust guides was worn allowing the valve to flap around which slightly damaged the valve and the head. Other than that, the engine was in really good shape. Notice the water passages on the head - perfect.
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		+	[[Image:Block and cylinder closeup.jpg]]
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		+	[[Image:Cylinder head closeup.jpg]]
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		+
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		+	<b>Here is the engine before the final rebuild</b>
		+	<br/>I had to visit terry at the shop because he had bead blasted my manifold which I then took home to bore out and paint.

	[[Image:bottom of head.JPG]]		[[Image:bottom of head.JPG]]

Millsj at 02:56, 31 January 2006

2006-01-31T02:56:26Z

New page

Here is the bottom of the head
 All of the valves were in perfect order except for that was irregularly worn due to a ruined valve guide.

[[Image:bottom of head.JPG]]

Here is the top of the head

[[Image:top of head.JPG]]

Here is the block cleaned and ready for boring and honing

[[Image:block cleaned.JPG]]