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Location:
Canberra
Registered:
May 2002
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oil-light warning on ra28 (3t-gt)
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Fri, 11 July 2003 03:59
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Hiya, I recently changed my oil and filter and accidentally overfilled the oil level (by about a cm or two) It's an RA28 with a 3t-gt in it with standard computers). I thought I had checked it carefully but there must have been more sneaking around in there than was apparent. I drove around like that for a few days (now it’s back to the normal level) but now when I go hard up a hill in third or fourth gear (not all the time just sometimes when there’s a lot of load on the engine) the ‘oil warning’ light flickers on. Any ideas what’s going on and what I can do about it? Has the pump been over-taxed or is there a problem with the sensor or am I in worse trouble? Cheers, Chris.
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Location:
Canberra
Registered:
May 2002
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Re: oil-light warning on ra28 (3t-gt)
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Fri, 11 July 2003 04:06
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Hey Chris
Can you put a manual oil pressure guage on it instead of the light so you can see what's really happening?
I know this may sound stupid,& you've probably checked, but is the dipstick seating too far into the tube (damaged top seat on the stick), therefore showing a higher level than it really has? Going up a hill under load/acceleration is the perfect opportunity for surge with a low oil level in a 3TG sump....
Phil
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Location:
Canberra
Registered:
May 2002
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Re: oil-light warning on ra28 (3t-gt)
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Fri, 11 July 2003 06:07
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Hey Phil, how's it going? Yeah the dipstick seems to be reading okay, and I'm pretty sure it was overfull for at least a few days. That's what I found difficult to understand, how it would go from too much oil to (possibly surging and) telling me I didn't have enough (if that's what the warning was from). That's why I thought maybe the pump had difficulty with an overabundance of oil or that perhaps the sensor was malfunctioning. I guess you're right I'll have to try and rig it up with a gauge and work out exactly what's going on. Do you know of any cheap oil-pressure gauges that'll do the job (I remember someone saying something about other gauges you could adapt to it)? I've got it booked in to my mechanics to get everything checked over on the 24th but I'd like to try and work it out sooner. I might get in touch with Chuck and see if he can give me a hand. Cheers, Chris. Oh, and just in case, any idea how much it costs to replace the oil pump on one of these engines? Are there any better ones you can fit? And how did dyno day go for you? Heard Jason's rolla ripped it up pretty good, just beaten by a 4agte though so there's hope for you yet 
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Location:
Canberra
Registered:
May 2002
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Re: oil-light warning on ra28 (3t-gt)
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Fri, 11 July 2003 06:19
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Autopro phillip were selling mechanical oil pressure guages last week for only $15.95 ! came with the hose & all. Otherwise, Speco are a good quality guage and go for around $40 retail.
The 3TGTE pump is as good as it gets for the T series engines. I sold mine for $50 in good condition when I pulled my motor apart! You'd be lucky to find another one for that though.... no point buying one till you've pulled it apart to see whats wrong though.
Dyno day was good fun. My car didnt quite make the numbers I was expecting, but hey, that's the way it goes, no point making excuses (158kw at the wheels was the best it could do).
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Location:
sydney
Registered:
March 2003
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Re: oil-light warning on ra28 (3t-gt)
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Fri, 11 July 2003 09:40
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from past experiences i have heard that the 3t have oil pump problems
maybe by coincidence yr pump was abit on the bad side but never played up till u changed the oil n iflter
they have a relief valve inside the oil pump and that sometimes sticks due to wear
but like the other guy said put a manual gauge on it first
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