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  #1  
Old 02-26-2000, 12:28 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Benzmac. Finally got the head off the '89 300e.(One day of warm weather). Looks as if the head gasket blew between 2 3 and 4. Also 4 looks as if it blew into the water jacket and oil galley. Such a mess!!!
Question, do you know if this is the usual sort of pattern for blowout, i.e. middle cylinders in the nest? Also, when removing the head bolts, the center four came out real easy. To me this indicates stretch. Am I on target here? The local machine shop (they do a lot of foreign and aluminum heads) told me they don't bake the heads to straighten anymore. They mill them as long as the deck height removed does not exceed 3 to 7 thousanths, otherwise, it's a new head.. Any thoughts??
Thanks

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Jeff L
1987 300e
1989 300e
1987 BMW 325
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  #2  
Old 02-27-2000, 10:49 AM
Jason Alexander
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Blow-out between cylinders may very well be caused by a warped head. Be sure to replace the head bolts anytime you remove and install a head.

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ASE Master Technician, Lead Technician for Deutsch American Inc. Over 6 years of Import experience-specializing in German Automobiles.

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  #3  
Old 02-27-2000, 02:19 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Be sure to have it checked for trueness. I have had good luck with the bake, then cut routine on warped heads. Just remove the cam and when done have the bores checked for proper alignment. What we do is to bolt the head down a thousanth or two in the other direction and bake it. Then when it comes back out of the oven, it may spring into place.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
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  #4  
Old 02-28-2000, 02:35 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Benzmac, do you folks sell the valve guides for this head (300e m103)? I put in a parts request and am still waiting. Thanks

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Jeff L
1987 300e
1989 300e
1987 BMW 325
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  #5  
Old 02-28-2000, 03:22 PM
Bill Wood's Avatar
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Join Date: Mar 1999
Location: Johns Creek, GA, USA
Posts: 5,013
We sell the valve guides, seals, gaskets, head bolts, etc.
Lee is working on your inquiry as I type this and will followup with you via e-mail.

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Bill Wood - Webmaster
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