

| Subject: | Re: Proper gap for spark plug 85 1.9L? |
| From: | Jack |
| Date: | Sun, 11 Jul 2004 09:57:48 -0800 |
From my '85GL 1.9L Owners Manual (U.S.): Plugs: Bosch W7C0 or Beru 14 L-7C Electrode gap: 0.028 in (0.7 mm) Don't have reliable info re specified wire/connector resistance myself. Much depends on whether your system uses resistor wire or regular wire with suppressor connectors. Be aware that a PO or his mechanic may have changed things from the original setup. But a reasonable check is to make sure the resistances of the 4 plug wires are all about the same. Then make sure the center wire and the rotor are reasonable values (ie, not open circuit). I believe the rotor used with the Hall effect system is a resistor type rotor - roughly 1k ohm. Hope this helps a little. //Jack Date sent: Sun, 11 Jul 2004 07:19:09 -0500 Send reply to: Aerowolf <aerowolf@GMAIL.COM> From: Aerowolf <aerowolf@GMAIL.COM> Subject: Re: Proper gap for spark plug 85 1.9L? To: vanagon@GERRY.VANAGON.COM > The Bosch manual says that their plugs for that MY are .044". > > This confuses me a lot. > > (Also: How important is it that the cables I have have the proper > resistance? The ones that are currently on there are 1200 to 1600 > ohm, while the Bentley book says 6000 +/- 800 is acceptable? How do I > determine the resistance of the current circuit?) > > -Kyle > > On Sat, 10 Jul 2004 02:21:34 -0400, Daniel L. Katz <katzd54@yahoo.com> wrote: > > kyle: > > manual says .028" gap, but most plugs, such as the autolite 403, > are made > for about .035", which is a good all around gap. 2 mm is about > .08" - an > extra wide gap - there are plugs manufactured for that, but if > due to > excessive wear, then plugs should be replaced, irrespective of > deposits. > > hall sender and coil not likely culprits. almost all coil > replacements are > unnecessary. > > dan > > > > > On Fri, 9 Jul 2004 19:26:47 > -0500, Aerowolf <aerowolf@GMAIL.COM> wrote: > > >What's the proper gap for > spark plugs on a 1985 1.9L wasserboxer? I > >can't find it in my Bentley > manual anywhere. > > > >(The inspection of the spark plugs shows they're > currently operating > >at a gap of approximately 2mm, though I don't have a > gapper handy for > >specifics. My engine is running rich, which is leading > me to evaluate > >the ignition system for problems such as possibly a weak > coil or a bad > >HCU/hall sender.) > > > >-Kyle >
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