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General Information => Troubleshooting => Topic started by: Coz on February 28, 2017, 05:18:48 am
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Hey guys!! new member here, although ive been lurking for a while!
Ive got a mk1 caddy with a 1.6gtd lump, sb code and recently replaced my turbo due to it blowing the oil seals. newly rebuilt never used turbo was fitted. fitted new Intercooler too as a precaution. fitted everything except the turbo oil feed, removed fuel cut power, so i could crank the engine without it starting. but im not getting oil to the turbo. removed oil feed line to check for blockages, all clear. This problems driving me nuts!
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G'day,
If the turbo is getting no oil, the other bits might not be getting any either. I would pull the vacuum pump and run the oil pump shaft with a drill and a socket+extension, then check for oil pressure at the head and turbo feed.
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ill try that right now dude. once the vacuum pump is off, what direction should i set the drill too?
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Tried it with the drill.just ordered a new pump😭😭
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I have seen some pretty rough oil pumps and never seen one that didn't build or move something. Spin it again for a while and fast.
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ok. i removed the turbo feed completely, ran the pump on the drill clockwise & anti clockwise for a good minute, and nothing out the hole. what else could it be other than a dead pump?
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It could be an issue with a clearance being do large that the oil leaks out there instead of at the turbo. Pulling the pan and looking at the oil pump is a good first step, though.
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hopefully the new pump solves the issue. should be here today, so ill get on it tonight after work. cheers for the help so far guys!
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I usually prefer to do diagnosis before ordering parts for a repair because that to be a less expensive way to proceed. There are other potential reasons for no flow other than the pump itself AND even if it is the pump, then if it has been running without any oil flow, the entire engine could be beyond the point where repair is worth doing making any parts purchases just an expense with no benefit.
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I usually prefer to do diagnosis before ordering parts for a repair because that to be a less expensive way to proceed. There are other potential reasons for no flow other than the pump itself AND even if it is the pump, then if it has been running without any oil flow, the entire engine could be beyond the point where repair is worth doing making any parts purchases just an expense with no benefit.
i totally agree. the only reason i ordered the oil pump is because i cant work out what else it could be? any ideas?
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Oil film/foil from under the cap of the oil container stuck in the pick up tube...or similar blockage
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ok. replacing the oil pump fixed the problem, BUT now its developed a loud knocking which seems to be coming from the top end!!
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What's the history of your injectors? A leaky injector can make some pretty nasty sounds.
Sent from my XT1097 using Tapatalk
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Yeah, open each injector while running and see if the sound changes.
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im back in the workshop on sunday, so ill crack em one by one with the motor running. one of the injectors, 4th if facing engine, has a fair amount of sealent on it! someone also recommended removing the aux belt and running it? anything else i can try on sunday? got the whole day to work on it! anyone in london wanna come have a look? i make a banging bacon sarnie!
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I'd peek at the lifters before I run it much more... if they go up and down when you turn it by hand, they might be ok.
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im back in the workshop on sunday, so ill crack em one by one with the motor running. one of the injectors, 4th if facing engine, has a fair amount of sealent on it! someone also recommended removing the aux belt and running it? anything else i can try on sunday? got the whole day to work on it! anyone in london wanna come have a look? i make a banging bacon sarnie!
Sealant all over the injector? Sounds like someone tried to "fix" something already...
I wouldn't be surprised if the goop-covered injector tries to unscrew itself in the middle when you try and loosen the hard line.
Sent from my XT1097 using Tapatalk
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right. just started her up, and cracked the injectors one by one. to my ear it sounds like the knocking goes away when i undo the 3rd injector from the left when facing the engine. now what? ive only owned this pos for about 6 weeks and its spent 3 off the road!!
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That pretty much confirms that you need your injectors rebuilt. The knocking sound is caused by the injector leaking fuel before it is supposed to. If left like that it can cause engine damage.
Sent from my XT1097 using Tapatalk
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got the lump stripped down. there was no rings on the third piston!! it was rattling around in the bore! so having a full rebuild, managed to source a block, piston etc.
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Props to ya for hanging in... lotta folks would walk away.
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i hate giving up. this motor is gonna be reliable as *** and good for years to come!
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the caddys back with a fully rebuilt motor and nos bottom end! everything has been replaced and it starts and runs. other than some new electrical issues, it starts ok, but still isnt quite running right. ive fitted an egt gauge from stack, so i can monitor temps, and waiting on an oil pressure gauge. can someone point me in the direction of a guide to reset the pump to standard fuelling?