Knocking engine, replace or rebuild
#1
Knocking engine, replace or rebuild
Hi guys, i was running my car unfortunately low on oil, high revs and also dropped into the wrong gear at one point. Took all the stupid pills that day!!
It loss power so i cruised back to the pits and found loud knocking at low revs.
Few people i have spoken to (including the superb guys at R2 Automotive) say not worth rebuilding as could cost up to £5k, especially if crank is gone. Could be all sorts wrong in there. My gut is that if it was oil changed it would quiet down a lot but anyway certainly needs a rebuild
however a 2nd hand engine is £3k and then once you add garage labour for fitting, consumerables etc you’re going over £4k anyway. So my thinking is if i could definitely get a freshly rebuilt engine for under £5k then that makes more sense. Maybe i could even replace for now and rebuild the old one separately.
looking for some advice as well as lots of ribbing for getting into this situation in the first place!!
Here goes...
It loss power so i cruised back to the pits and found loud knocking at low revs.
Few people i have spoken to (including the superb guys at R2 Automotive) say not worth rebuilding as could cost up to £5k, especially if crank is gone. Could be all sorts wrong in there. My gut is that if it was oil changed it would quiet down a lot but anyway certainly needs a rebuild
however a 2nd hand engine is £3k and then once you add garage labour for fitting, consumerables etc you’re going over £4k anyway. So my thinking is if i could definitely get a freshly rebuilt engine for under £5k then that makes more sense. Maybe i could even replace for now and rebuild the old one separately.
looking for some advice as well as lots of ribbing for getting into this situation in the first place!!
Here goes...
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Jay Elliott-Purdy (05-07-2019)
#3
get the spanners out and whip the sump off and have a look.
crank may be ok.
+cylinder wall damage its another story
crank may be ok.
+cylinder wall damage its another story
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Jay Elliott-Purdy (05-07-2019)
#4
How low is low, when it comes to the oil level? Normally you’ll get 4.8 litres in there, so what did you have on the dipstick when checked?
As said; the crank might be ok. In which case new pistons and liners might be a (somewhat) cheaper option than a new engine.
As said; the crank might be ok. In which case new pistons and liners might be a (somewhat) cheaper option than a new engine.
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Jay Elliott-Purdy (05-07-2019)
#5
Another thing is to remove vtec solenoid <10 mins>and look at the filter for metal and what type of metal if any.
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Jay Elliott-Purdy (05-07-2019)
#6
either way you made a very expensive mistake
there are a few who i would trust with rebuild.. a few
there are a few who i would trust with rebuild.. a few
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Jay Elliott-Purdy (05-07-2019)
#7
Any renowned builders in the south?
what use is old engine? Who buys them, just for bits i guess?
cheers for tips above!
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Jay Elliott-Purdy (05-07-2019)
#9
this is now the plan, check oil filter, remove sump n have a look around for a rough idea of what is going on. If there’s filings in the oil for example. If it looks bad then will put another engine in rather than stripping down the entire engine n doing measurements to see what needs replacing and whether rebuild would be £5k or £8k!