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| need a good ear to back up my suspiscions https://forums.tipec.net/viewtopic.php?f=4&t=1617 |
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| Author: | colt45_gto [ Fri Aug 15, 2008 4:04 pm ] |
| Post subject: | need a good ear to back up my suspiscions |
right you know i have this major prob with my engine knocking like a rent man, i have just swapped cars round moving the porsche from where i want the gto to be and when i started the gto it didn't knock once the oil pressure was top side straight off the key so i left it to idle while i went and grabbed the camera. it was still on cold start when i got back to it and still no knock until it warmed up a bit. anyway i have shot a little video. in the video i rev the car the first time and there is no knock the only noise you hear is the squeal i mentioned in an earlier post, then the cold start cuts off as the car idles at 800rpm. i rev it again a few times and the knock is very audible , so out of curiosity i jump into the car and show the oil pressure which reads zero untill i hold the throttle to 2000 rpm to which the pressure builds with the rev counter to 2.0 bar. could it be the oil? or is it as i suspect with swarf in the oil pump? YouTube - knock |
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| Author: | tr7v8 [ Fri Aug 15, 2008 5:24 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
Jammed oil pressure release valve, once you give it some beans the pump outputs enough oil to create pressure against the open valve. |
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| Author: | colt45_gto [ Fri Aug 15, 2008 5:41 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
then it needs to come out to be cleaned. its what i thought anyway but the engine strip is inevitable to replace the big ends and possibly the mains. |
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| Author: | tr7v8 [ Fri Aug 15, 2008 8:28 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
colt45_gto wrote: then it needs to come out to be cleaned. its what i thought anyway but the engine strip is inevitable to replace the big ends and possibly the mains. Early ones are meant to need an alignment tool to do, some do some don't. It's under the oil cooler so you'll need an oil cooler seal set before you pull it down. Read the manual as it's not as straightforward as you'd think. |
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| Author: | colt45_gto [ Fri Aug 15, 2008 8:57 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
what manual? lol my cars don't come with manuals the only manuals i have are those i write in my head on my journey through parts and millions of 12mm bolts lol |
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| Author: | lindsayhbrown [ Fri Aug 15, 2008 11:24 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
tr7v8 wrote: colt45_gto wrote: then it needs to come out to be cleaned. its what i thought anyway but the engine strip is inevitable to replace the big ends and possibly the mains. Early ones are meant to need an alignment tool to do, some do some don't. It's under the oil cooler so you'll need an oil cooler seal set before you pull it down. Read the manual as it's not as straightforward as you'd think. its the mitsibushi not the pork 
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| Author: | J.J. [ Sat Aug 16, 2008 12:42 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
Scrap it & concentrate on the real car 
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| Author: | colt45_gto [ Sat Aug 16, 2008 3:46 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
hehe i would if i didnt love it  anyway engines out now half stripped |
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| Author: | colt45_gto [ Thu Aug 21, 2008 12:23 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
all the shells were shot, oil rings stuck in the pistons mains all shot so engine shop has my crank heads a piston (for ring sizes) and all my new parts.... but i'll never raise the cash to retrieve any of it. so scrappin it seems like the next option. |
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| Author: | madrob6 [ Thu Aug 21, 2008 12:54 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
Sounds nasty. Any idea what caused that mess? |
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| Author: | colt45_gto [ Thu Aug 21, 2008 12:57 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
pressure relief valve stuck open slightly. but oil pump looks a bit worse for wear too so i need one of those. engine shop bill £300, oil pump extra £180 |
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| Author: | colt45_gto [ Sat Aug 23, 2008 6:57 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
waaaaahoooooo only got a bit of dosh to go now and i got me bits.. meanwhile back in la la land i been doin some prep work, engine block covers and lower plenum all painted candy yellow, engine bay resprayed ready to be scratched to hell n back as the thewly built and painted engine scrapes its way down the sides.... few more bits to black out and its all ready for the transplant...should be getting my stuff tuesday 
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| Author: | colt45_gto [ Sat Aug 23, 2008 10:05 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
      need a checkup from the neckup but i think once its all done and back together complete with the pearl black respray it should be a true show stopper
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| Author: | lindsayhbrown [ Sat Aug 23, 2008 10:09 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
i wish i had half your patience |
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| Author: | tr7v8 [ Sat Aug 23, 2008 11:50 pm ] |
| Post subject: | Re: need a good ear to back up my suspiscions |
God that gold is a bit tarty Dave  And didn't mask the machined bits off either tut tut
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