10-08-2019, 01:28 AM
Sorry. After a long winter's nap I'm back at trying to fix this problem. (Tracker only gets used during the hunting season and for pushing snow)
Checked Dash-Pot and, although a bit sticky on initial release, it opens with vacuum and holds the vacuum.
So I replaced all of my 1/8" ID vacuum tubing with new. On start-up I had the same over-revving issue.
Pulled vac hose between EGR modulator and dash-pot and it had a lot of carbon coffee grounds in it that may have affected vacuum, but I suspect not. Blew them out.
Decided to pull dash-pot (which I had removed, and repainted last year before the problem started ...hint...hint) and immediately noticed that the two bolts weren't very tight. Hmmm...... I suspect this is my problem. I used hi-temp gasket sealer when I put it back on, lightly tightened the bolts, and likely forgot to re-tighten the bolts after it had cured. The leakage here would make perfect sense in explaining my over-revving issue on start-up. Also curious to see if it addresses my 1800rpm idle, hot!
Wondering what sheet gasket material to buy for doing the job properly this time??
Checked Dash-Pot and, although a bit sticky on initial release, it opens with vacuum and holds the vacuum.
So I replaced all of my 1/8" ID vacuum tubing with new. On start-up I had the same over-revving issue.
Pulled vac hose between EGR modulator and dash-pot and it had a lot of carbon coffee grounds in it that may have affected vacuum, but I suspect not. Blew them out.
Decided to pull dash-pot (which I had removed, and repainted last year before the problem started ...hint...hint) and immediately noticed that the two bolts weren't very tight. Hmmm...... I suspect this is my problem. I used hi-temp gasket sealer when I put it back on, lightly tightened the bolts, and likely forgot to re-tighten the bolts after it had cured. The leakage here would make perfect sense in explaining my over-revving issue on start-up. Also curious to see if it addresses my 1800rpm idle, hot!
Wondering what sheet gasket material to buy for doing the job properly this time??