

| Subject: | Re: valve adjustments and power (was reno van shop) |
| From: | John Rodgers |
| Date: | Thu, 25 Oct 2001 18:57:36 -0500 |
Brian Cochran wrote: > > > I let the van sit a couple days and upon starting a had a noticeable > clatter. I tried to ignore it and it did go away after about 20-some > miles and hasn't returned in subsequent startups. > > How about the clatter? > > Brian, if the valves are adjusted correctly (flat) and you have run it, the run it again, only to hear the lifter clatter again, then I suspect your engine has the typical vanagon "flat lifter" syndrome. For what ever reasons this is a characteristic of the engine. Maddingly frustrating. It appears to be caused by the oil pressure being lost in the oil galleries of the engine when it is shut off. A number of causes of this condition can occur. Improper filter with inadequate pressure relief spring can bring it on. A piece of trash in the oil in the lifter, any number of things. There are a numbers of ways to attack the problem. Some swear by including a pint to a quart of Marvins Mystery Oil additive to the engine during oil changes. For myself I find that religiosity with oil changes works .... using a Mahle filter of course!! And sometimes nothing works but to change the lifter. Good luck. John Rodgers 88 GL Driver [text/html]
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