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Mark Maras

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Everything posted by Mark Maras

  1. @siteunseen Possibly, but I've seen crappy, worn out engines run strong. I'm still going on the assumption that the engine is good. The compression is good, the valve train isn't shedding parts, even at six grand. If we get the spark and fuel right, I think it'll be good to go. At least I'm hoping so.
  2. @jalexquijano Looking good. Let's assume that the mixture screws are close for now. Am I correct that the gremlin we're working on is the sputtering before it's warmed up? Next time you're out and the engine is warming up and sputtering, note the temp on your gauge and push the choke knob slowly forward. I'm trying to figure out if the sputtering WHEN COLD is caused by a rich or lean condition. If the sputtering improves when you pull the choke it means the the mixture is lean. If you push the choke forward and the sputtering improves the mixture is too rich. Please note, I'm not talking about adjusting the mixture screws at this point. I'm trying to get a feeling as to what the engine wants when it's cold. This problem could be just choke related. Not being in Panama and being able to drive your Z, I'm guessing that the sputtering is caused by too much choke. Too little choke on a cold engine will cause it to fall on it's face when a load is added. I'm betting that the sputtering will improve with a little less choke. Try it. Remember tho, it's not good for your engine to be pushing it HARD when it's not fully warmed up.
  3. @siteunseen The fact that the engine seems to run fine when it's warmed up makes me think that the chokes are fully closing. I'm sure we're not done but the only problem I see at this time is the engine runs a bit crappy if it's pushed when it's cold. Which is totally understandable. I'm the same way.
  4. So many good ones. "I Mudd" was another memorable one. Harcourt Fenton Mudd, Norman, and the Stella's.
  5. Thanks. One of my favorite episodes. Don't know why I wrote Vulcan. Chalk it up to "brain fade".
  6. @jalexquijano Are you operating the choke in either full on or full off mode? Or are gradually easing the choke off as the engine warms? Either way, I'm not surprised that the engine didn't run optimally until it was fully warmed up. In the future, let's concentrate on symptoms that occur when the engine is fully warmed up. Any complaints when it's warm. Idling for a few minutes? # 4 plug looked the same as the others. We're making progress. @siteunseen Tick tock, tick tock.
  7. With the threat of the tribbles multiplying and filling the Enterprise, Scotty beamed them to the Klingon mother ship. Who knew?
  8. Thanks for the pics. Those plugs look very good. Was the engine fully warmed up when you started on the test run at what rpm did it start to misfire?
  9. @jalexquijano Don't clean the plugs. Take a pic and post it. You could clean the plugs (after the pic) but if the mis-fire continues, you still won't know if it's caused by the plugs. Bite the bullet and buy new plugs.
  10. @jalexquijano I've experienced lack of fuel in my Z. It had a partially blocked fuel filter at the time. There wasn't any cutting out, missing, spitting etc. It just wouldn't go any faster than 45 mph no matter what gear it was in. It would free rev to 6000 rpms but under power, in any gear, just 45 mph. The only time I've experienced high rpm misfire in mine, it turned out to be ignition related. I changed spark plugs and the misfire went away. Try installing a new set of plugs and see if it improves. I'd still like to see a pic of all six plugs.
  11. I've never had one come loose. Hopefully, a PO didn't tighten it properly. I'd tighten it properly and stow the tools needed to do a roadside repair in the car for a few months.
  12. Not enough info. Spitting as a symptom doesn't tell me squat. Start over with, WAS it ever running good and work your way into WHEN it started to run crappy and WHAT you worked on. This could be something as simple as tightening choke cable clamp, so think about it. Also include driving conditions before and after and your own thoughts on it. Did you ever take a pic of the six plugs?
  13. I hope you get it. That's a steal if it's as good as he says it is.
  14. As far as the clunk goes, check your drive line u-joints. The clunk when starting out in reverse makes me suspicious. At what speed do you notice the sway? can you feel it in the steering wheel?
  15. We could solve them all but we'd be preaching to the choir. However, it would be a kick in the a$$ to be able to sit around over a beer (over 105 craft breweries in Portland metro area) and agree with each other. We'll keep you in the loop when we settle on a time and date. How far N of The Couv are you?
  16. Let's get together for coffee, beer, food. What does your schedule look like?
  17. When I stripped mine I found many places where the adhesion to the metal had failed and there was light rust hiding under the mat. I found that when the mat is cold most of it will chip off with a HF wood chisel.
  18. I used lacquer thinner to clean my spray bar. Had to soak it for 24 hrs. to dissolve everything on the inside. A torch tip cleaner is an excellent tool to clean the holes.
  19. I'm told that a door hinge and bushing kit from Dorman, Part# 38397 is a good replacement. Cheap too. $8.00 on Amazon. Probably not a whole lot more at your local parts store. P.S. the bushings will work in your shifter too.
  20. I've been in contact with Oliver. He hasn't found the box that he thinks has the bumper piece that Jai is looking for but says he will keep looking.
  21. Thanks for the link. I've emailed her the info. Jai's 280 is a beautiful red 76.
  22. Nice find and welcome Ben. Interesting dent in the top shoulder of the fender. Garage accident? Did you get original bumpers with the car? The reason I ask is, we have a member that has an early 76 that needs an end from a front bumper and the rubber filler strip in the center. If you were going to go the early bumper route, perhaps you would part with your old one. Sorry if I appear to be a vulture circling over forty three year old meat. Our member in Georgia is trying to complete her bumper to get ready for car shows this spring and summer. No luck finding the parts so far.
  23. You forgot the happy face emoji , so I added one. Good news. Sounds like we're getting close. The trace of color on the two plugs looks good. I'm told that the darker tan color that we all used to try to achieve is not applicable to modern gas formulas. Were all the plugs about the same color, especially #4? Please explain "Even better when the pump measured 4.2 psi." You shouldn't notice any difference in the performance whether the fuel pressure is at 3 psi - 4.2 psi. If you have noticed a difference, I would suspect a float needle valve is leaking.
  24. What do the other plugs look like and how did the car run?
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