After 2 years of sitting and tinkering...got some issues. Sigh
05-02-05, 08:45 PM
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After 2 years of sitting and tinkering...got some issues. Sigh
Well, with finishing up school, buying my house and a '68 prostreet chevelle, and endless meetings with Ford engineering, the rx got side lined for awhile. But today I finally fired it up. I wanted to get it running good with the stock stuff before I switched over to the microtech.
Here's the car:
88 10ae 45k miles on the clock
Here's what I did that would effect running:
Rats nest removal and parallel fuel system with walbro. UIM water bypass. I also took off all the TB stuff, except I didn't get around to removing the flappers and the shaft. Twin scroll is in place but not hooked to vac. Switched to premix and removed OMP
Here's what it's doing:
1) Was hard to start (bone dry fuel system and batt seemed low). Was hard to restart after I had run it 20 minutes, shut down and tried to restart.
2) Smoked like a *itch for a few minutes and cleared up
2) Did not want to idle until it got some heat in it (40* ambient brr)
3)Leaking water from the center of the engine just about where the bellhousing connects up.
4) Breaks up a little bit when dead revving it and coming from a roll in my driveway.
5) Metallic thump thump noise coming from the turbo side intercooler pipe when it's revved up to 5-6k and released. Like someone is knocking on my pipe with a screwdriver. Kinda almost sounds like compressor surge...but I didn't build any boost??
6) Fuel pressure is set at 40psi idle and jumps to 43-45 when revved up (no boost)
Here's how it's hooked up.
The FPR is hooked up to the nipple that points to the drivers seat on the LIM. Primary injector bleed is to the top on the firewall side TB. BOV is on the lower front. Boost gauge is to lower rear. Pressure sensor is to the pass side UIM and the wastegate is to the turbo.
What I noticed:
Turbo has no front to back axial play. It has some side to side. If I really try to rock it I can make it give me a clunk noise. Pushing it sideways I can turn it without any scraping sounds or weirdness.
knowing my luck, the leak is coming from the water bypass and the UIM has to come off again
Here's the car:
88 10ae 45k miles on the clock
Here's what I did that would effect running:
Rats nest removal and parallel fuel system with walbro. UIM water bypass. I also took off all the TB stuff, except I didn't get around to removing the flappers and the shaft. Twin scroll is in place but not hooked to vac. Switched to premix and removed OMP
Here's what it's doing:
1) Was hard to start (bone dry fuel system and batt seemed low). Was hard to restart after I had run it 20 minutes, shut down and tried to restart.
2) Smoked like a *itch for a few minutes and cleared up
2) Did not want to idle until it got some heat in it (40* ambient brr)
3)Leaking water from the center of the engine just about where the bellhousing connects up.
4) Breaks up a little bit when dead revving it and coming from a roll in my driveway.
5) Metallic thump thump noise coming from the turbo side intercooler pipe when it's revved up to 5-6k and released. Like someone is knocking on my pipe with a screwdriver. Kinda almost sounds like compressor surge...but I didn't build any boost??
6) Fuel pressure is set at 40psi idle and jumps to 43-45 when revved up (no boost)
Here's how it's hooked up.
The FPR is hooked up to the nipple that points to the drivers seat on the LIM. Primary injector bleed is to the top on the firewall side TB. BOV is on the lower front. Boost gauge is to lower rear. Pressure sensor is to the pass side UIM and the wastegate is to the turbo.
What I noticed:
Turbo has no front to back axial play. It has some side to side. If I really try to rock it I can make it give me a clunk noise. Pushing it sideways I can turn it without any scraping sounds or weirdness.
knowing my luck, the leak is coming from the water bypass and the UIM has to come off again
05-03-05, 07:15 AM
#2
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Here's my thoughts after sleeping on it all night.
The car was slow to crank over as the batt wasn't doing so well. It really started lugging, I could hear the fuel pump click on and off and then it finally hit.
I thinking the low voltage let the injectors fire, but couldn't lite the mixture. I basically flooded it. Since I'm running premix all that fuel/oil in the engine caused the big cloud of blue smoke.
To help support this is the fact the fuel pressure goes up about 5-10 psi just from revving in neutral. This is either the voltage coming back up with the battery. The car's fuel pump resistor kicking the voltage up or a combination of both.
The stumble off idle...maybe the plugs just need cleaned? Loose plug wire?
The hard to restart after running for 20 minutes?
The car was slow to crank over as the batt wasn't doing so well. It really started lugging, I could hear the fuel pump click on and off and then it finally hit.
I thinking the low voltage let the injectors fire, but couldn't lite the mixture. I basically flooded it. Since I'm running premix all that fuel/oil in the engine caused the big cloud of blue smoke.
To help support this is the fact the fuel pressure goes up about 5-10 psi just from revving in neutral. This is either the voltage coming back up with the battery. The car's fuel pump resistor kicking the voltage up or a combination of both.
The stumble off idle...maybe the plugs just need cleaned? Loose plug wire?
The hard to restart after running for 20 minutes?
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