> ...... air cleaner so rough idle *may* be due to a lack of the 27 valve shown > in this diagram Meant: valve, or whatever it is, that 27 attaches to. Neil. On 4/1/20, Neil N <musomuso@gmail.com> wrote: > Reasons for wondering if head needs new parts, valve lapping: > > - engine had 250K KM"s, maybe more, looked like it had a tough life > (lots of oil leaks, piston skirts quite scuffed) > - first start engine cold, it idles rough for about 30 seconds. Cause: > lazy or leaking down lifter? Once warmed up, it idles fine. > - machine shop checked valve(s) seal using compressed air. Was test > thorough? > - I replaced all bearings, rings, pistons so seems a shame I didn't > rebuild the head too. > > My '81 and '88 Vanagons have the same ABA 2.0 swap. The '81 has always > idled a bit rough after first start for about 5 - 10 seconds but the > '88 behaves much differently in that regard. Neither uses the ABA 2.0 > air cleaner so rough idle *may* be due to a lack of the 27 valve shown > in this diagram > > https://tinyurl.com/typy8zc > > All that said, the engine has good acceleration and power albeit with > a rare intermittent stall when coming to a stop. > > Neil. > > On 4/1/20, Dennis Haynes <d23haynes57@hotmail.com> wrote: > >> Why? Do you suspect or have a valve issue? I've seen my share of rings >> and >> piston issues with these motors. >> Dennis >> >> >> >> -----Original Message----- >> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf >> Of >> Neil N >> Sent: Wednesday, April 1, 2020 2:03 PM >> To: vanagon@GERRY.VANAGON.COM >> Subject: Re: New engine, was Re: Ecu fix addendum >> >> On 4/1/20, Neil N <musomuso@gmail.com> wrote: >> >>> .... Of note, I regret not having the head re-valved on my ABA >>> rebuild ..... >> >> Meaning: new lifters, possibly valves or at least lap them, machine as >> needed. >> >> > > -- > Neil n > > VE7TBN > > 1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt > > 1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8 > > VAG Gas Engine Swap Group <http://tinyurl.com/khalbay> >
-- Neil n VE7TBN 1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt 1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8 VAG Gas Engine Swap Group <http://tinyurl.com/khalbay> |
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