240260280z Posted September 6, 2011 Share #1 Posted September 6, 2011 (edited) Made a new Z friend only 45mi away in Pa. Had a very nice drive through beautiful Pa. and lunch. Spent the day talking carbs and geek stuff... a blast! Learned a lot. Also planning research collaborations too. Stay tuned to this channel. P.S. How many of you have ever seen this item that rarely sees the light of day except through a window? Tony D you are not allowed to comment Edited September 6, 2011 by Blue Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/ Share on other sites More sharing options...
LeonV Posted September 6, 2011 Share #2 Posted September 6, 2011 Looks like the power valve? Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365571 Share on other sites More sharing options...
240260280z Posted September 6, 2011 Author Share #3 Posted September 6, 2011 Sir: Strike 1 Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365580 Share on other sites More sharing options...
SteveJ Posted September 6, 2011 Share #4 Posted September 6, 2011 Well, the name of the file is jet. Would you be so obvious? Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365582 Share on other sites More sharing options...
240260280z Posted September 6, 2011 Author Share #5 Posted September 6, 2011 I missed the fact the this forum does not convert file names to numbers... you hit it out of the park Yup it is a flat top jet that is normally well secured deep inside a flat top SU. It only sees light through the fuel bowl window. My new Z friend showed me a great deal of flat-top details today including a cool tool he made to safely remove the jet, Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365585 Share on other sites More sharing options...
RIP260Z Posted September 6, 2011 Share #6 Posted September 6, 2011 Blue, I see the score marks on the "nut part" of the jet holder...I had that too. They seem to be "glued" in and have to be forced out. The jet either gets clogged up with carbon (soak in Brasso does the trick), or the needle wears a slot in the jet holder. Did your new Z friend have any tips for removing the needle from the bottom of the piston? Some I have come across have been soo difficult to remove without bending the needle (as new needles are NLA as far as I am aware).Good to see some in depth on the "boat anchor" flat tops Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365603 Share on other sites More sharing options...
240260280z Posted September 6, 2011 Author Share #7 Posted September 6, 2011 (edited) RIP260Z Blue, I see the score marks on the "nut part" of the jet holder...I had that too. They seem to be "glued" in and have to be forced out. The jet either gets clogged up with carbon (soak in Brasso does the trick), or the needle wears a slot in the jet holder. Did your new Z friend have any tips for removing the needle from the bottom of the piston? Some I have come across have been soo difficult to remove without bending the needle (as new needles are NLA as far as I am aware). Good to see some in depth on the "boat anchor" flat tops Thanks! my friend "Cptn Obvious" on this forum, is a superb investigator and data gatherer with great attention to detail. Plus "he has a lathe" (in joke). I know he addressed removing the jet by making a special tool, and also returning the jet to correct depth by another special tool but I do not know if he addressed the dreaded stuck needle. I would guess he would make a custom clamping tool like the one he made for removing the nozzle (in photo below) that grabbed the needle at the shoulder (in the groove). Some threaded holes in the clamp could be used to turn bolts that pulled the needle out in a similar fashion to the threaded holes in brake drums and pulleys that help removal. Heck a few holes in his jet clamp could turn it into a dual function tool! Thanks for the Brasso tip. Now I need to get me a set of flat tops to work in parallel with the Guru! Did I mention that he has a lathe? Edited September 6, 2011 by Blue Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365607 Share on other sites More sharing options...
SteveJ Posted September 6, 2011 Share #8 Posted September 6, 2011 Phil, I don't have a pair to spare, but I do have a single flattop sitting on my garage floor, ready to give its life in the name of learning. If you want it, send me a PM. Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365612 Share on other sites More sharing options...
240260280z Posted September 6, 2011 Author Share #9 Posted September 6, 2011 Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365613 Share on other sites More sharing options...
SteveJ Posted September 6, 2011 Share #10 Posted September 6, 2011 Not too long ago, I checked my plugs and found they were fouled. Following my own advice, I read through the FSM and came across the diagram Phil posted. I was in a hurry and just did minor adjustments, using my ears as a crude tuning tool. I leaned out the carburetors a little and bumped up the fast idle to keep the engine at a nice idle speed. The end result was that the car behaved better, and the plugs didn't foul. To me, it was just as easy as working with the SUs.I didn't think Tony was yanking our collective chains when he said there was something to the flat tops. I just hope I can open my mind up enough to understand. Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365628 Share on other sites More sharing options...
zKars Posted September 6, 2011 Share #11 Posted September 6, 2011 Blue if you really want a set of flat tops, let me know... Guess what showed up just last weekend. Very low km's.... Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365641 Share on other sites More sharing options...
240260280z Posted September 7, 2011 Author Share #12 Posted September 7, 2011 (edited) Hi Ian,Love your car pics on another Z site I browsed earlier!Blue, SnipDid your new Z friend have any tips for removing the needle from the bottom of the piston? Some I have come across have been soo difficult to remove without bending the needle (as new needles are NLA as far as I am aware).Good to see some in depth on the "boat anchor" flat topsI just checked and he used new rubber tubing and essentially put two pieces longitudinally along the length of the needle then clamped this in a vise (squeezing a hot dog). The rubber prevented damage yet it grabbed the needle. As well, the vise jaws grabbed the whole length of the needle thus distributing the force evenly and preventing any bending. Edited September 7, 2011 by Blue Link to comment https://www.classiczcars.com/topic/40687-spent-the-day-with-a-flat-top-expert-and-learned-a-lot/#findComment-365696 Share on other sites More sharing options...
dspillman
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now