Well thanks for the input folks. Yes, I did put the Link in the +10 set up mode! Bill's suggestion sounds a lot better than a full strip down to me, so I'll be trying that one (and hopefully not dropping the spanner down inside the belt cover). I am thinking that it might be my loctite crank keyway fix failing. If it is, would that be seen as an advance in base timing or a retard? I can't get my head around that one (keyway becoming wider to left as you look at it from the front and positioned on the top of the crank). I can check whether the crank boss has slipped by using the TDC timing mark on the crank pulley vs. a rod through the spark plug hole on cylinder #1 right? Re the misfire, yes it's been gradually getting worse over the last few months. I did also come across this posting on miata forum: You're waay advanced right? I've seen these symptoms on a stock '93 recently. The cams turned out to be correctly timed, so we swapped wires, plugs, CAS, TPS, etc, for known good ones, and finally found corrosion in the coil wells.
If this is not it, let us know what you find. Later, Rod Anyone else come across that before, or any other coil slow failure resulting in ignition timing seemingly advanced? Finally, I've got an emission check imminent - incorrect cam timing is going to screw that up right? Thanks, Glenn _____ From: [email protected] [mailto:[email protected]] On Behalf Of Wiseman, Curtis J Sent: 12 March 2012 13:33 To: Helsel, Walt; Bill Cardell; [email protected] Subject: RE: Water Pump, Timing Belt, and Coils Having just done the whole job yesterday, I'd say Wally's estimate is more accurate, unless you have a 2002 with more plumbing and wiring attached to the VC. And, btw, the crank bolt tool and Ninja worked great. See FM's fb page for action shots. From: Helsel, Walt [mailto:[email protected]] Sent: Monday, March 12, 2012 8:25 AM To: Wiseman, Curtis J; Bill Cardell; [email protected] Subject: EXTERNAL: RE: Water Pump, Timing Belt, and Coils "shouldn't take half an hour".. Should have ended with ", should take 2 hours because you can't possibly do it that fast unless you have done 400 of them" J Wallyman From: [email protected] [mailto:[email protected]] On Behalf Of Wiseman, Curtis J Sent: Monday, March 12, 2012 9:23 AM To: Bill Cardell; [email protected] Subject: RE: Water Pump, Timing Belt, and Coils ".half an hour" he says. J From: [email protected] [mailto:[email protected]] On Behalf Of Bill Cardell Sent: Sunday, March 11, 2012 6:30 PM To: Glenn Johnson; [email protected] Subject: EXTERNAL: RE: Water Pump, Timing Belt, and Coils You are using the +10 ign setup mode, right? If only you'd had a Ninja tool.... You can pull the VC and top plastic cover, reach in with open end 14mm to loosen tensioner pulley. Use the regular TDC marks on the front pulley (damper) timed to the plastic cover, no need to see the notch on the crank sprocket. Shouldn't take half an hour. Bill Cardell Owner Flyin' Miata 1-800-359-6957 (sales) 970-464-5600 (tech support) www.flyinmiata.com www.fmwestfield.com _____ From: [email protected] [mailto:[email protected]] On Behalf Of Glenn Johnson Sent: Sunday, March 11, 2012 5:23 PM To: [email protected] Subject: Water Pump, Timing Belt, and Coils Hi folks, I need a quick bit of collective analysis: I just changed the water pump on my '97 FMII with Link, thought I'd been meticulous with the timing belt part but the base timing now looks like it's advanced 14 degrees - white dot indicating 14 degrees, yellow to the left of it off the scale. I'm guessing it's not just that it cam timing was wrong before and I've just corrected re-fitting the timing belt, as if try to adjust the base timing back to indicating correctly the car will stall before I've got there. Assuming the worst, how little of a strip down can I get away with to set the cam timing again? Can you get the covers off with the accessory belts and water pump and crank pulleys in place, and see the crank shaft mark? Finally, trying to work out a misfire under boost that's not been affected by changing leads or plugs and re-gapping to 0.8 mm. I've had a coil pack go before and it was immediate and complete, i.e. straight to firing on two cylinders. Here the car is fine off boost and even up to 12 PSI or so. Do coils have failure modes like this? Would I be able to determine from a data log whether the misfire was an ignition or a fuelling issue? Thanks in advance, Glenn This e-mail and any attachments contain URS Corporation confidential information that may be proprietary or privileged. If you receive this message in error or are not the intended recipient, you should not retain, distribute, disclose or use any of this information and you should destroy the e-mail and any attachments or copies.
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