fc falling apart
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Junior Member
Joined: Mar 2007
Posts: 22
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From: Greensboro, NC
fc falling apart
Hey, new fellow rotorhead here, I bought a 88 gxl with 180,000 miles on it (doubltfully ever rebuilt, but ran good for a while until things began breaking)
1) Doesn't have any oil pressure at startup
2) The water pump is leaking bad
3) The idle is rediculously high, ~4000 rpm give or take a thousand
Water pump and gasket coming in tomorrow, but I'm completely stumped on the idle problem. I don't know alot about the oiling metering system so I was hoping someone could shed some light on what is likely break first
A while back someone "borrowed" my hks intake (came with the car) so I had to fab one out of a couple of socks
, a few days ago it disapeared. Hopefully it fell off and didn't get sucked in (doublfull, but who knows), but I think that's when my idle went crazy. I was able to get the filter back, btw. Before I tear everything apart, I want to hear some opinions.
I've done a good amount of searching but i'm still unsatisfied so I'm hoping you guys can help me out, thanks alot this a great site
1) Doesn't have any oil pressure at startup
2) The water pump is leaking bad
3) The idle is rediculously high, ~4000 rpm give or take a thousand
Water pump and gasket coming in tomorrow, but I'm completely stumped on the idle problem. I don't know alot about the oiling metering system so I was hoping someone could shed some light on what is likely break first
A while back someone "borrowed" my hks intake (came with the car) so I had to fab one out of a couple of socks
, a few days ago it disapeared. Hopefully it fell off and didn't get sucked in (doublfull, but who knows), but I think that's when my idle went crazy. I was able to get the filter back, btw. Before I tear everything apart, I want to hear some opinions.I've done a good amount of searching but i'm still unsatisfied so I'm hoping you guys can help me out, thanks alot this a great site
Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
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From: Rohnert Park CA
#1 Replace or space up the E-shaft themo-valve to get your oil pressure back to normal. Make sure you are not using a Fram or other cheapo oil filter.
#2 Replace water pump, and thermostat (Mazda OEM thermostat only)
#3 Reset timing and idle, and check for vac leaks for the high idle.
#2 Replace water pump, and thermostat (Mazda OEM thermostat only)
#3 Reset timing and idle, and check for vac leaks for the high idle.
Thread Starter
Junior Member
Joined: Mar 2007
Posts: 22
Likes: 0
From: Greensboro, NC
Thanks, but how do I reset the timing and idle?
And I have checked the throttle cable and there is slack, but I still can't hold good idle when pushing the throttle shut
I run 20w50 and it's a purolator filter
The eshaft thermo valve is very curious to me, I'll have to find it
And I have checked the throttle cable and there is slack, but I still can't hold good idle when pushing the throttle shut
I run 20w50 and it's a purolator filter
The eshaft thermo valve is very curious to me, I'll have to find it
Winter sucks
Joined: Jan 2004
Posts: 3,083
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From: Newberg, Oregon
Also, make sure your oil pressure reading isn't just a bad sender... verify your oil pressure suspicions with a manual type oil pressure gauge.
Also... a sock? Have you made sure it didn't get sucked in there? It would have gotten stopped by the AFM I'd imagine... perhaps lodged it open? what made you think using a sock was okay? I'd run it wide open before putting something like that on it.
Also... a sock? Have you made sure it didn't get sucked in there? It would have gotten stopped by the AFM I'd imagine... perhaps lodged it open? what made you think using a sock was okay? I'd run it wide open before putting something like that on it.
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