 Type IV engine case preparation, Looking for information |
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| Driver174 |
 Nov 12 2022, 01:33 PM
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#1
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Member  Group: Members Posts: 106 Joined: 2-February 17 From: Nevada Member No.: 20,806 Region Association: None 
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I have the desirable W case and want to prepare it for a future build. Is there a procedure or instructions written somewhere explaining how to prepare a case assembly?
I wouldn’t mind purchasing this information; maybe Mr. Raby offered something in the past? Thanks, Jim |
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| 914Sixer |
Nov 12 2022, 03:07 PM
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#2
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914 Guru Group: Members Posts: 8,882 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Check line bore. Pull head studs and have case decked on barrel spigots. Visually check crankshaft and camshaft saddles for damage or out of round.
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| Driver174 |
Nov 12 2022, 04:15 PM
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#3
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Member Group: Members Posts: 106 Joined: 2-February 17 From: Nevada Member No.: 20,806 Region Association: None
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The oil passages get tapped and plugged, or welded shut. Oil pressure regulator valve assembly needs modified I believe. The rear main seal needs a pressure relief passage. Case needs clearances for Cr moly rods. Epoxy or some king of coating for interior and exterior of case.
I’m hopping to find a complete list processes to perform. |
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| barefoot |
Nov 13 2022, 11:01 AM
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#4
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Senior Member Group: Members Posts: 1,273 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
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Using new main bearing inserts, see if they're a tight fit into the brg saddles, if loose at all, the case needs line boring to 1st O/S
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| 930cabman |
Nov 13 2022, 12:30 PM
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#5
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Advanced Member Group: Members Posts: 3,058 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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Other than being clean and straight/flat and within spec, build her up
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