This is a multi-part message in MIME format.
------=_NextPart_000_0012_01C8AC75.42380DA0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
It's a long shot but I saw a case like yours one time that the mechanic =
that had done the engine couldn't get it to idle smooth. Turned out to =
be a new rubber part. On each side of the engine between the valve =
cover and the injectors is a rubber hose piece that has 4 niples that =
hook to the 4 injector shields. One of the niples was pluged up. The =
engine gets idle air through these niples hince one cylender got no idle =
air and would miss. If you take off the hoses and look in each niple =
you can see if it is blocked.
This is a very hard problem to diagnose, but an easy one to fix.
Paul
"Tony Pike" <tonypike@[EMAIL PROTECTED]
> wrote in message =
news:dsqSj.3729$XI1.2018@[EMAIL PROTECTED]
I just had a 1988 420 SEL 4.2 Litre motor completely rebuilt at a =
reputable shop. Everything seems fine, leak down test, wet and dry =
compression test -all checks out o.k. When at idle, the motor visibly =
shakes and seems to be missing. The mechanic is even at odds here, and =
might send it outside to determine the problem. Of course everything was =
installed correctly, timing set, plugs gapped, etc. Could this be a =
vacuum leak, fuel/air mixture issue or some relay at fault here? Any =
suggestions greatly appreciated.
Tony.
------=_NextPart_000_0012_01C8AC75.42380DA0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.6000.16608" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>It's a long shot but I saw a case like =
yours one=20
time that the mechanic that had done the engine couldn't get it to idle=20
smooth. Turned out to be a new rubber part. On each side of =
the=20
engine between the valve cover and the injectors is a rubber hose piece =
that has=20
4 niples that hook to the 4 injector shields. One of the niples was =
pluged=20
up. The engine gets idle air through these niples hince one =
cylender got=20
no idle air and would miss. If you take off the hoses and look in =
each=20
niple you can see if it is blocked.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>This is a very hard problem to =
diagnose, but an=20
easy one to fix.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Paul</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV>"Tony Pike" <<A=20
href=3D"mailto:tonypike@[EMAIL PROTECTED]
">tonypike@[EMAIL PROTECTED]
>> wrote in =
message=20
<A=20
=
href=3D"news:dsqSj.3729$XI1.2018@[EMAIL PROTECTED]
">news:dsqSj.3729$XI1.2018@[EMAIL PROTECTED]
>...</DIV>
<DIV><FONT face=3DArial size=3D2>I just had a 1988 420 SEL 4.2 =
Litre motor=20
completely rebuilt at a reputable shop. Everything seems fine, leak =
down test,=20
wet and dry compression test -all checks out o.k. When at idle, the =
motor=20
visibly shakes and seems to be missing. The mechanic is even at odds =
here, and=20
might send it outside to determine the problem. Of course everything =
was=20
installed correctly, timing set, plugs gapped, etc. Could this be a =
vacuum=20
leak, fuel/air mixture issue or some relay at fault here? Any =
suggestions=20
greatly appreciated.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> =20
Tony.</FONT></DIV></BLOCKQUOTE></BODY></HTML>
------=_NextPart_000_0012_01C8AC75.42380DA0--
|
