I can't remember who suggested I do a warm compression test. But to whomever it was a hearty thanks. It has taken me several days to find the correct o-rings to seal up my compression tester. But I found them today and inasmuch as I drove the jeep to get the o-rings, it was hot when I got home and installed them in the tester. So the good news is as follows . . . 350 psi, 340 psi, 350 psi, 340 psi. And these are close approximations as there was still a tiny bit of leak down, but they are close enough for me to relax about the condition of the engine itself. This is a spread of 10 psi over a range or 350 psi which is one part in 35, which is less than 3% from low to high. So the issue is the fuel system and NOT the engine proper.
A knowledgeable friend suggested a broken return spring under the plunger. Being a plausible thing I pulled the outlet and investigated. I watched as the plunger rose and fell as it should when the engine was turned. But replacing the outlet gave me the idea of adjusting it for maximum flow. In other words, turning it as clockwise as I could. Wow what a difference. Still not great but another big step toward a smooth idling, smooth running engine.
And then something ocured to me - the DPO was a "mechanic" according to his father (whom I bought the car from), but not very good at it. And it ocured to me that he might have goofed with the IP and screwed it up. So tomorrow I am going to adjust the shims under that outlet in order to lower that #4 outlet body to see if that will smooth out the idle by forcing more fuel through #4. I figure I don't' have anything to loose since my option is a complete teardown or trying to find a good used IP. Either way the pump will be replaced.
I will keep you all posted.
Bogy.
Bogy.
"Hardware eventually fails. Software eventually works" - Michael Hartung
__._,_.___
Posted by: Bogy Wan Kenobi <polespearbogy@yahoo.com>
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (25) |
Have you tried the highest rated email app?
With 4.5 stars in iTunes, the Yahoo Mail app is the highest rated email app on the market. What are you waiting for? Now you can access all your inboxes (Gmail, Outlook, AOL and more) in one place. Never delete an email again with 1000GB of free cloud storage.
.
__,_._,___
No comments:
Post a Comment