Posted April 13, 200619 yr comment_163326 Havent recieved out FSM yet and need to tune up sons 73. Think were gonna drop this mallory dual point dizzy in that we have sitting around. What should the point gap be, Dwell, Timing and at what RPM, 4 speed Tranny! Oh and Plug gap for NGK's ! Thanks Guys! Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/ Share on other sites More sharing options...
April 13, 200619 yr comment_163330 Gap point on the plugs should be .032.Good luck. Wanna do mine next? Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163330 Share on other sites More sharing options...
April 13, 200619 yr Author comment_163331 If I was Back living in Terre Haute Maybe, (born and Raised) Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163331 Share on other sites More sharing options...
April 13, 200619 yr comment_163336 ahhh Terre Haute. Steve Martin's favorite place. He even mentions it in "Dead Men Don't Wear Plaid". Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163336 Share on other sites More sharing options...
April 13, 200619 yr Author comment_163338 Yea ! he wasnt a reel happy camper there was he!! Gotta head back up there in a month or so and pick up abunch of crap I got in storage! Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163338 Share on other sites More sharing options...
April 13, 200619 yr Author comment_163374 Coudl use the rest of the specs! Does anyone know about the point gap with the Dual mallory? Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163374 Share on other sites More sharing options...
April 14, 200619 yr Author comment_163457 also just noticed that this mallory doesnt have a vacumm advance, is it missing or normal being it's a dual point ? Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163457 Share on other sites More sharing options...
April 14, 200619 yr comment_163483 Don,Where did you pick up your son's '73? Pics? Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163483 Share on other sites More sharing options...
April 14, 200619 yr Author comment_163487 Madison Ga, taking pics later today.Went to tune it today and got surprised!!!!!!!Found "NO POINTS". appears to be some type of optical . Has alittle round disk with slots in it that turns thru some type of pick up! also found timing at approx 20 BTDC. dont know if the diszzy modification changes what it is supposed to be at. adjusted carbs slightly and set idle, seems to run smooth but need to verify the timing thing. Also found the vac advance not hooked up, any idea where it hooks to with a dual weber ( I assume) setup. There are 2 vacuum ports at the manifold where the front carb mounts that are blocked off, wonder if I can use one of them .? Will post some pics of the engine area later today?? Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163487 Share on other sites More sharing options...
April 14, 200619 yr comment_163498 SPARK PLUG GAP-0.032 TO 0.036in. POINTS [sINGLE]-0.45 TO 0.55mm.dwell@35-41.POINTS [stock or mallory]SAME AS STOCK SINGLE.TIMING-7deg.B.T.D.C [4 spd].@750-800rpm. VALVE CLEARANCE-[HOT]-INT,0.010in.-EXH,0.012in.VALVE CLEARANCE-[COLD-INT,0.008in.-EXH,0.010in.COMPRESSION PRESSURE-[sTD] 178-185psi@300TO400RPM/WOT FUEL PRESSRUE @750rpm-3.8 TO 4.0MAXIMUM CENTRIFUGAL ADVANCE@ DIST.-[RPM], 12DEG@[1400]MAXIMUM VACUUM @IN,-[Hg] 6deg@[18.7]FIRING ORDER- 153624VACUUM PORTS ON THE DAUL WEBERS ARE ON THE BACK SIDES[CLOSER TO THE INT.]ON THE BOTTOM SIDE NOT ON THE INTAKE MANIFOLD OR INT. RUNNERS.PORTS FOR THE VACUUM ADVANCE ARE BEFORE THE THROTTLE PLATE.I HAVE ALL THE FACTORY MANUALS FROM 1970 TO 1999 [Z] AND ALSO HAVE CD TYPE MANUALS FOR THE 350Z AND COUNTLESS TECH NOTES AND TSB's, HOPE SOME OF THIS HELPS.JZM.. Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163498 Share on other sites More sharing options...
April 14, 200619 yr Author comment_163503 sure does Thanks JZM Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163503 Share on other sites More sharing options...
April 14, 200619 yr comment_163504 Don,Looking forward to the pics. Sounds like your family has got Z disease like us. Link to comment https://www.classiczcars.com/forums/topic/19613-need-240-l24-tune-up-specs-please/#findComment-163504 Share on other sites More sharing options...
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