Date: Sat, 20 Nov 2004 01:48:07 -0500
Reply-To: Eric Zeno <vw4x4@FYI.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Eric Zeno <vw4x4@FYI.NET>
Subject: Re: I have a dificult one (Very thecnical/Aircooled) NVCBBC
In-Reply-To: <vanagon%2004112000103558@GERRY.VANAGON.COM>
Content-Type: TEXT/PLAIN; charset=US-ASCII
Ben,
Sound to me like you are not adjusting at TDC (top dead center).
Each cyl. need to be moved to the firing position.
Eric 86-VW4x4
vw4x4@fyi.net 86-SS Syncro
Pittsburgh, PA USA 1936-Chrysler
92-Jetta GWC
www.fyi.net/~vw4x4/vw4x4.htm
On Sat, 20 Nov 2004, Benny boy wrote:
> Good day guys, i hope you can help me....because am very confuse in regard
> of a valves adjustment on an engine that am re-sealing!!!
>
> Here is the deal, it all began when we thought (customer and me) i was
> working on a 2.0L 78 engine with hydro, along the way when the heads were
> out and i had to remove a lifter wile changing the pushrods tubes O-Ring,
> after many measurement:
> Valve diameter = 41mm intake / 34mm Exhaust
> Bore and Stoke = 93mm bore / 66mm for stroke
> Case = AW014863
> Head # = 021-101-371S (still not sure of those number????)
>
> Anyway, to make a very long story short, wile i was almost done with this
> engine, it was time to do the valves as i know now that i have solid lifters
> (i know Vanagon lifter, i hope that Bus's hydro lifter are the
> same?????).... so like always, 006 on #1 and up to #2 but????????????????
> Now that am on #2, intake valve on #1 as now a 1/8in gap????????? anyway, as
> i try to do all other valves and cylinder, i found that all valves are way
> to tight (like if this was hydro lifter - 1 turn in), so i do all the valves
> to 006 anyway...
>
> Here is my problem: as soon as i move to the next cylinder, the one before
> end up with a very loose valve (Mostly intake except for #2), that loose is
> at least 1/8in????? So i say to myself, something is really wrong here, so i
> double check the TDC on #1 (visual piston position, pulley position on "0"
> and distributor position on #1 and on notch) Everything is fine, i even
> check the cam lobe position though the lifter hole (looks fine to me but
> difficult to be sure) So i go to a 1.7 am bulding right now , the core is
> not close so i compare the lobe position with both engine, they looks OK to
> me, but am not sure!!!!
>
> My conclusion: Well, i have none! the only thing i can see is a wrong cam or
> a offset cam position....i don't know what to think.....
>
> Thank a million for any advices!!! Am lost here..... and very tired.
>
> Regards, Ben
> ps.: here is the engine project web page:
> http://www.benplace.com/type2_engine1.htm
>
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