To properly seat the rings, I recommend  that you alternate full power and
coasting for several cycles.

Mike B.

----- Original Message -----
From: "David Kao" <dtkao0205@YAHOO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, June 04, 2007 5:18 PM
Subject: Re: What's Wrong With my Compression?

> You are probably right. 3 of mine are at 145 - 150 PSI. The #3 is around
> 120-125.
> It's not perfect but acceptable. I am going to do a more aggressive break
> in by
> climbing a steep road (probably 30 degree) a couple of hundred feet long
> with lots
> of throttle. This may give some combustion force to help sealing the rings
> and
> possibly valves too. The engine is gaining horse obviously. It looks like
> #3 is
> slower getting in shape but it is getting there.
>
> What I have learned from this rebuilding is it is doable to rebuild
> wasserboxer
> by yourself. But be aware that you probably done have all the equipments
> for checking
> things thoroughly like a proshop does. So there will be always some risk
> that after
> installing the engine back on to the van you discover some problems. It's
> a risk
> and tradeoff. If you live nearby Benny you are extremely lucky. I decide
> to do it
> myself and take the risk. I already screwed up once three years ago. This
> time I
> am more likely to be fine.
>
> Thanks for everyone's repsonse to provide helpful tips. I will report back
> probably
> a few weeks later when I checked the compression again.
>
> David
>
> --- benoit <huotb@videotron.ca> wrote:
>
>> HI, i have never seen a wasser engine with totaly even compression,
>> never. The best was +-10psi
>> The highest was 175psi, the average is 140-160, very strong runner older
>> engine run's in the 125.
>> Most vans have one weaker cylinder (lower compression), most engine
>> re-seal/top end i do are in the 150 all around but with new heads, those
>> will reach the 160 with time....
>>
>> Drive your van and have fun....
>>
>> Regards, Ben
>
>
>
>
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