

| Subject: | Re: The root of all bubbles, low compression and evil itself? 1.9 head off... |
| From: | David Bohannan |
| Date: | Fri, 10 Feb 2017 08:08:09 -0500 |
Hi Chris...nope, the gasket ring came right off perfectly.... > On Feb 9, 2017, at 9:59 PM, Chris S <szpejankowski@gmail.com> wrote: > > Is that a cracked cylinder head gasket that's stuck in the head? > > Chris > > Dnia 09.02.2017 o godz. 20:18 David <fjazzbass@GMAIL.COM> napisał(a): > >> Hi Dennis, all... >> >> After a quick cleaning of the head, a tiny crack on the inside of the >> shoulder- perpendicular to the primary surface, but along the inside of >> where the cylinder slides in.... >> >> Also, these were reman heads... it was apparent where repair had been made >> in between the valves- not so much sloppy, but yeah- not what I would have >> liked to see. >> >> So I'm thinking of replacing it with new- debating doing the other >> side.... >> >> https://drive.google.com/open?id=0B15gAxRzC2oqRGRkVTBQa0dudEk >> >> Here's a link to a picture of the crack in the lower left side.... >> >> Thanks for all the advice!!! >> >> Dave >> >> On Thu, Feb 9, 2017 at 5:24 PM Dennis Haynes <d23haynes57@hotmail.com> >> wrote: >> >>> Head gasket (combustion) failures are a symptom. Usually they are the >>> result of a fitment problem or the heads came loose. Maybe not really loose >>> but for some reason the head studs failed to maintain adequate tension on >>> the heads due to combustion pressures or the thermal cycles. >>> >>> In order for the system to seal properly both the cylinder tops and the >>> head seats need to be near perfect. The cylinders also need to be perfectly >>> paralleled and in plane with the adjacent one. The cases can warp or twist >>> and the cylinder bases can get damaged making this impossible. Rare for the >>> Waterboxer but very common for the air cooled engines. >>> >>> You need to look at everything including the possibility the studs are no >>> good and need to be replaced. Before final assembly test fit a head and >>> make sure all the studs/nuts can torque up. Any that seem to keep >>> stretching need to be replaced. >>> >>> Some pictures am allow us to give some better answers. You can do this >>> right or you will get to do it again and curse out the Water Boxer. >>> >>> Dennis >>> >>> >>> >>> -----Original Message----- >>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf >>> Of Dave Bohannan >>> Sent: Tuesday, February 07, 2017 1:05 PM >>> To: vanagon@GERRY.VANAGON.COM >>> Subject: The root of all bubbles, low compression and evil itself? 1.9 >>> head off... >>> >>> Smart volks… >>> >>> I finally got sick of bleeding “air” from the coolant system and suspected >>> something was up…compression test looked great on 3, bad on one… took head >>> off and lo and behold, yep I’ve got blown head gasket that allowed >>> combustion gases into coolant… >>> >>> So, I’ve looked at the outside of the cylinder sleeve and it looks >>> corroded- but the actual head itself doesn’t…do I need to “re-sleeve” it? >>> >>> In the least I think I need a new head? The “gasket rings” looked >>> good…just discoloration around the outside on the head which showed where >>> combustion gases were coming out... >>> >>> I don’t know the right questions to ask here…anyone??? >>> >>> Dave >>> 1.9 GL (half headless….) >>>
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