FuzzFace2 Posted November 23, 2020 Share Posted November 23, 2020 Gary, Im sure youre correct. I believe there may be a slight leak on the rear intake runners still. I know there is some air getting in through the barb to the intake from the break booster. Maybe some on the back face of the carb. In short, youre very likely right. If I had though a little harder I would have realized that I couldnt use the PCV hose. Thanks! Job well done I had my stock intake & EFI manifolds installed and running great and then had to pull them to fix leaking freeze plugs. When I got it back together I also had a intake vacuum leak. The manifold slid down a little before I got the bolts tight. Had to loosen the bolts and lift it a little and tighten them back up. I think its ok now as its been running that way for many many miles now. Dave ---- Link to comment Share on other sites More sharing options...
StraightSix Posted November 27, 2020 Author Share Posted November 27, 2020 Job well done I had my stock intake & EFI manifolds installed and running great and then had to pull them to fix leaking freeze plugs. When I got it back together I also had a intake vacuum leak. The manifold slid down a little before I got the bolts tight. Had to loosen the bolts and lift it a little and tighten them back up. I think its ok now as its been running that way for many many miles now. Dave ---- Hey everyone! Dave- I may have to do the same as I think I may still have a slight leak. Other than a possible small leak, its running well and Ive been working on tuning. Driveability is good other than an issue bogging down from when starting from a stop in 2nd (np435). This can be avoided by feathering in the accelerator a lottle ahead of the clutch. Its a good bit peppier than before. Im not sure if I made a timing/tuning change that had a big positive effect or if It just feels like a more pronounced difference, but whatever it is I think the upgrade did a lot. Ive driven it back and forth to work and around town a good bit, everything seems fine for now. Its been a busy few days as Ive been building my winch mount for the front receiver (I can do a breif write up on the front receiver if there is interest) the winch is now installed and wired forbthe first time in about 6 months My tachometer is now malfunctioning. Its reading about 2500rpm at idle, which should be between about 500 and 800. It just started doing this today. I didnt have too long to investigate today, but I did pull the tachometer plug in the ds2 harness apart. Everything there looked fine. I guess I get to do more research! Thanks for reading! Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted November 27, 2020 Share Posted November 27, 2020 Hey everyone! Dave- I may have to do the same as I think I may still have a slight leak. Other than a possible small leak, its running well and Ive been working on tuning. Driveability is good other than an issue bogging down from when starting from a stop in 2nd (np435). This can be avoided by feathering in the accelerator a lottle ahead of the clutch. Its a good bit peppier than before. Im not sure if I made a timing/tuning change that had a big positive effect or if It just feels like a more pronounced difference, but whatever it is I think the upgrade did a lot. Ive driven it back and forth to work and around town a good bit, everything seems fine for now. Its been a busy few days as Ive been building my winch mount for the front receiver (I can do a breif write up on the front receiver if there is interest) the winch is now installed and wired forbthe first time in about 6 months My tachometer is now malfunctioning. Its reading about 2500rpm at idle, which should be between about 500 and 800. It just started doing this today. I didnt have too long to investigate today, but I did pull the tachometer plug in the ds2 harness apart. Everything there looked fine. I guess I get to do more research! Thanks for reading! You might check the tach terminal is not grounded. No ground for six cylinder, ground terminal for eight. That winch setup looks great! Very low profile for something that mounts in a receiver. Link to comment Share on other sites More sharing options...
StraightSix Posted November 27, 2020 Author Share Posted November 27, 2020 You might check the tach terminal is not grounded. No ground for six cylinder, ground terminal for eight. That winch setup looks great! Very low profile for something that mounts in a receiver. Thanks Jim! That was one of the main things I wanted. Not only does it look better for them to be tight like that, I suspect minimizing the amount of square tubing is a good thing. No reason to give that thing more leverage! Hopefully I can play with the tach some today. It was fine until I cranked it up yesterday. Is your suspicion that the "v8" terminal on the tsch itself became grounded somehow? Thanks! And by the way, I hope everyone had a great, safe Thanksgiving Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 27, 2020 Share Posted November 27, 2020 Thanks Jim! That was one of the main things I wanted. Not only does it look better for them to be tight like that, I suspect minimizing the amount of square tubing is a good thing. No reason to give that thing more leverage! Hopefully I can play with the tach some today. It was fine until I cranked it up yesterday. Is your suspicion that the "v8" terminal on the tsch itself became grounded somehow? Thanks! And by the way, I hope everyone had a great, safe Thanksgiving Yes, the winch looks great. Close to the bumper. And a writeup on how you did the receiver would be helpful, for sure. On the tach, mine recently went wonky and it turned out the DS-II box had failed. It was firing and the engine was running, but very poorly. Is yours running correctly? Link to comment Share on other sites More sharing options...
StraightSix Posted November 27, 2020 Author Share Posted November 27, 2020 Yes, the winch looks great. Close to the bumper. And a writeup on how you did the receiver would be helpful, for sure. On the tach, mine recently went wonky and it turned out the DS-II box had failed. It was firing and the engine was running, but very poorly. Is yours running correctly? Gary, Wow.. its a brand new ds2 motorcraft branded box. Hopefully thats not it. Im not sure as I only had it running at an idle in the driveway and didnt even let it get hot. Ill let ut get hot and take a spin around the neighborhood today. I wonder if I can get my money back from summit if it turns out to be a bad ds2 box.. Thanks! Ill sit down and look through the pictures I do have of the front receiver, then make a basic write up. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 27, 2020 Share Posted November 27, 2020 Gary, Wow.. its a brand new ds2 motorcraft branded box. Hopefully thats not it. Im not sure as I only had it running at an idle in the driveway and didnt even let it get hot. Ill let ut get hot and take a spin around the neighborhood today. I wonder if I can get my money back from summit if it turns out to be a bad ds2 box.. Thanks! Ill sit down and look through the pictures I do have of the front receiver, then make a basic write up. Mine was a brand new box. Used it to break in the cam on Big Blue. But the engine ran horribly and the tach was erratic. I had a spare mounted below it and after 25 minutes of running to break in the cam I turned it off and swapped boxes. The engine ran very well after that and the tach settled right down. Link to comment Share on other sites More sharing options...
Sac79 Posted November 27, 2020 Share Posted November 27, 2020 Hey everyone! Dave- I may have to do the same as I think I may still have a slight leak. Other than a possible small leak, its running well and Ive been working on tuning. Driveability is good other than an issue bogging down from when starting from a stop in 2nd (np435). This can be avoided by feathering in the accelerator a lottle ahead of the clutch. Its a good bit peppier than before. Im not sure if I made a timing/tuning change that had a big positive effect or if It just feels like a more pronounced difference, but whatever it is I think the upgrade did a lot. Ive driven it back and forth to work and around town a good bit, everything seems fine for now. Its been a busy few days as Ive been building my winch mount for the front receiver (I can do a breif write up on the front receiver if there is interest) the winch is now installed and wired forbthe first time in about 6 months My tachometer is now malfunctioning. Its reading about 2500rpm at idle, which should be between about 500 and 800. It just started doing this today. I didnt have too long to investigate today, but I did pull the tachometer plug in the ds2 harness apart. Everything there looked fine. I guess I get to do more research! Thanks for reading! Depending on your idle speed, your 'issue'(if I understand it correctly) in 2nd is not unusual. Mine is set at 640Rpm and if I dump the clutch in 2nd it will stall. I can slowly release the clutch on anything other than an incline without throttle, but since that requires to much attention I usually give it a little throttle as well. How is the tuning coming along otherwise, did you get a light on the timing yet? You can set the timing with the vacuum gauge. Good luck with the tach issue. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted November 27, 2020 Share Posted November 27, 2020 Gary, Wow.. its a brand new ds2 motorcraft branded box. Hopefully thats not it. Im not sure as I only had it running at an idle in the driveway and didnt even let it get hot. Ill let ut get hot and take a spin around the neighborhood today. I wonder if I can get my money back from summit if it turns out to be a bad ds2 box.. Thanks! Ill sit down and look through the pictures I do have of the front receiver, then make a basic write up. Is the tach jumping around? Or is it steady, and just reading high? Are you sure your pickup to reluctor distance is correct and the distributor shaft has no slop? Link to comment Share on other sites More sharing options...
StraightSix Posted November 27, 2020 Author Share Posted November 27, 2020 Is the tach jumping around? Or is it steady, and just reading high? Are you sure your pickup to reluctor distance is correct and the distributor shaft has no slop? Well, I went out and started it up, it runs smooth, drives well, and now the tach seems to be reading right. Im not sure what happened, looks like I have an intermittent problem to solve. Gary- thats crazy. I would have hoped for better. The spare box mounted in place is a neat idea though. I might need to go pick up a second box to keep in the back. I attempted to set my timing with the vacuum guage, but I drew maximum idle vacuum at something like 45 degrees btdc. That seemed like it couldnt be a good idea so I locked it in at 10 btdc. More to come on timing. I was under the impression that you retard the timing until you reach maximum manifold vacuum then back off 2 degrees. As for what it was doing yesterday, it was running smooth but the tach was reading 2500 at idle. The needle may have had some movement and bounce to it. As for relictor distance, I have no idea. I dont recall any slop in the distributor shaft. Link to comment Share on other sites More sharing options...
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