

| Subject: | Re: head gaskets |
| From: | Scott Daniel - Turbovans |
| Date: | Fri, 18 Dec 2009 19:03:58 -0800 |
for sure David, if there's a leak at all in a critical system like the cooling system ....... left unfixed, you don't know what will happen, or when .........it would be a van you couldn't trust really .. so ...........good choice on getting the issue addressed properly ! I've only seen two kinds of heads on waterboxers, VW ones, and AMC ones. It's very easy to see which is which. If you see a VW part number....... and a round ( about the size of a quarter ) VW symbol..............that's a VW head. the AMC ones have no markings or part numbers, other than the plane 'amc' letters in upper case, on the top of the head......near where the intake manifold bolts on. I wouldn't say it was paranoid - I'd say ' prudent.' Scott www.turbovans.com ----- Original Message ----- From: <mcneely4@cox.net> To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com> Cc: <mcneely4@COX.NET>; <vanagon@GERRY.VANAGON.COM> Sent: Friday, December 18, 2009 6:59 AM Subject: Re: Re: head gaskets > Scott, and all others who have responded -- thanks a great deal for all > the advice and even commiseration. > > Looks like I will almost certainly have the seals done. If the heads need > other work, we'll know that when we get them off. I don't know whether > they are the original VW heads, or if they have been replaced (as part of > the longblock that was installed). If so, it would have been 30K and > seven years ago. The van isn't here now, it's at Daryl's Hobby Shop, in > Norman, Oklahoma (30 miles from me). Daryl is a great guy who has helped > me with several problems that I thought were beyond me. I trust him, and > will have him do the work. If they do need other work, we'll decide > whether to mill them or replace them, based on condition. > > I may be paranoid, but to me if something leaks, it needs fixed. When it > was under 10 F here (actually got down to 5 F), the leak on startup was > significant -- or to me it was. It made a nice puddle on the driveway. > It did quit, after the engine warmed up (or the leakage was evaporating > and not evident?), and on the drive over to Daryl's, it did not lose > enough coolant to be a problem (overflow bucket still above minimum mark). > I take the camper on long jaunts. I only drive it locally if I am > checking something out -- otherwise, it's out to distant campsites. I > have no desire to get stuck. Our Christmas trip to Big Bend State Natural > Area has now become a trip to Big Bend National Park and tent camping with > our Prius (still remote, but less so, and we will at least be able to > access nice places without high clearance), because I won't take this > thing on the road or to remote locations, and Daryl can't get to it till > after Christmas. > > Again, thanks to everyone, and especially to Scott. > > David McNeely > > > On Thu, Dec 17, 2009 at 9:09 PM, Scott Daniel - Turbovans wrote: > >> Dave, they are entirely fixable. >> I can't even count how many waterboxer heads I've done. >> >> 'new heads' is not 'the solution' necessarily ....... >> but they do need to be VW brand good heads, with no cracks between the >> valve seats, a decent rubber gasket surface, good exhaust valves, good >> guides, and a proper valve job, along with very careful workmanship >> ....... >> And they can work out just fine. >> >> if there is so much worry, just do the side that seems the worst, and see >> how that goes. >> >> ----- Original Message ----- From: "Dave Mcneely" To: Sent: Thursday, >> December 17, 2009 12:37 PM >> Subject: Re: head gaskets >> >> >>> Well, finding the history of the rebuild might be difficult. As I >>> mentioned, the paperwork I have shows a longblock, does not show source. >>> This thing only started leaking when cold weather arrived. Some seem to >>> think that is simply a chronic state with waterboxers, and they >>> evidently just let it go. I fear finding myself out in the back of >>> nowhere, and the seals let go and I lose the coolant. But from what you >>> say, I might not have any better luck if I do the seals, or even if I >>> get new heads. So, what should be done with such a beast? David >>> >>> >>> On Thu, Dec 17, 2009 at 9:30 AM, B Feddish wrote: >>> >>>> My apology if I missed that. Leaky heads at only 30K eh? I think the >>>> experts need to chime in here. You need to find out "why" they are >>>> leaking >>>> at only 30K. Was it a crappy rebuild, did the engine overheat, etc. >>>> Maybe it >>>> was just a bad seal and a new gasket will fix it for years. These >>>> might only >>>> be questions to answer once the heads were off or maybe possibly >>>> finding the >>>> history of the rebuild. Was it just a ring job and new gaskets or a >>>> complete >>>> rebuild with new pistons, heads, etc. >>>> >>>> Bryan >>>> >>>> -----Original Message----- >>>> From: mcneely4@cox.net [mailto:mcneely4@cox.net] Sent: Thursday, >>>> December 17, 2009 10:14 AM >>>> To: bfeddish@netreach.net >>>> Cc: mcneely4@COX.NET; vanagon@GERRY.VANAGON.COM >>>> Subject: RE: head gaskets >>>> >>>> Well, I did say that the engine only has 30K miles on a rebuild, >>>> according >>>> to paperwork I got when I bought the beast last spring. I have no >>>> idea >>>> where the rebuild came from (paperwork just states under "parts" that >>>> a >>>> "longblock engine replacement" was a part of the work done). >>>> >>>> So, you are saying either new heads or mill these, at minimum? >>>> thanks, Dave >>>> Mc >>>> >>>> >>>> On Thu, Dec 17, 2009 at 8:44 AM, B Feddish wrote: >>>> >>>>> You haven't mentioned how many miles were on this motor, that may >>>>> factor in >>>>> as to what you want to do. Taking the heads off is a big job whether >>>>> you do >>>>> it or somebody else does it. If I were to go that far there is no way >>>>> I'd >>>>> just slap a new rubber gasket and some sealant in there and put it >>>>> all back >>>>> together. This is of course if there are allot of miles on the >>>>> engine. I >>>>> would at least have the heads done while they were out our better yet >>>>> put on >>>>> some new ones. Yeah, the heads are expensive but so is taking them >>>>> off in >>>>> terms of time. Then again if you are budget conscious and you are >>>>> going to >>>>> do the job yourself then at least do the JB Weld thingy with the >>>>> heads while >>>>> they are out. >>>>> >>>>> Bryan >>>>> -----Original Message----- >>>>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On >>>>> Behalf Of >>>>> Dave Mcneely >>>>> Sent: Thursday, December 17, 2009 9:22 AM >>>>> To: vanagon@GERRY.VANAGON.COM >>>>> Subject: Re: head gaskets >>>>> >>>>> So, I should do the head gaskets, or not? It's very expensive, but I >>>>> want a >>>>> reliable van (or no van at all). Thanks, Dave Mc >>>>> >>>>> >>>>> On Wed, Dec 16, 2009 at 6:48 PM, mark drillock wrote: >>>>> >>>>>> This is a typical failure mode. Leaks in cold weather, stops when >>>>>> warmed up, leaks worse as temps drop. May go on this way for years >>>>>> depending on you and it. Mine has. On more than one van. >>>>>> >>>>>> Mark >>>>>> >>>>>> >>>>>> Dave Mcneely wrote: >>>>>>> So, I've done about everything I thought I should to make my '91 >>>>>>> camper as reliable as it could be, including lots of cooling system >>>>>>> fixes. >>>>>>> Just replaced all coolant hoses, since so many think that should be >>>>>>> done. >>>>>>> ....... >>>>>>> >>>>>>> Head gaskets are leaking. The question: I find it difficult to >>>>>>> think the gaskets just all of a sudden turned loose (I'd even >>>>>>> removed the tins to look for evidence of leaks when I did the >>>>>>> hoses, and saw none). >>>>>>> Could it be that the heads and or gaskets were already loose or >>>>>>> whatever, and the cold weather made them looser and so they leak? >>>>>>> If I run the engine a little while, the leaks dry up, suggesting to >>>>>>> me that temperature plays a role -- expansion, contraction ..... . >>>>>>> So, could the heads be sealed better even with the temperature >>>>>>> difference between normal fall temps and the quite cold temps we've >>>>>>> had lately? I'm just trying to understand why this suddenly showed >>>>>>> up, and wonder if it being coincident with the cold weather is more >>>>>>> than a coincidence.
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