Caporegime
Yep, we’re good, thanks! Car looks superb, can’t wait for things to start to return to normal to get a run out in it!
Chevy Corvette 350 small block - Knocking noise, can anyone diagnose please?
- Thread starter Gibbo
- Start date
Yep, we’re good, thanks! Car looks superb, can’t wait for things to start to return to normal to get a run out in it!
Soldato
I've always thought if you are going to buy a second had car buy it off Gibbo as it is probably in better condition than when new, the exact opposite of my car ownership journey!
Permabanned
- Joined
- 12 Jan 2021
- Posts
- 1,726
defo buy after gibbo
My head works in a way that I want to enjoy a used car when its performing its best. Hence why I tend to freshen suspension / bushes and just make sure everything is functioning spot on. Like my S2000, its had a full bush refresh, many were fine as its only got 50k miles on it, Ohlin suspension and I've changed all fluids, but won't be selling that for a long time, bit like the Corvette they are keepers.
I am considering selling my M5 though, it was always a tick box, I've now tick the box, also spent a few grand in running cost in the process also, but I am hardly driving the car so I might as well move it along in the near future.
Soldato
My comment was intended in a positive light, every car you own goes on an interesting journey and it is good to see the effort and commitment put into even something like the clio and the results.
The M5 is going maybe you can have too many cars after all!
Permabanned
- Joined
- 12 Jan 2021
- Posts
- 1,726
had an E60 m5 myself that v10 and was so what reliable too, i understand your itch but let it go.
Hi there
Collected Corvette today.
Mechanic after having car a couple of days, cold starts and driving it has said the engine has piston slap and hence the noise that tends to be present on cold starts and fades as it warms and the noise then heard is tappets.
He has however told me not to worry and to do nothing as in his opinion from other 359 small blocks and several Ford performance engines he said it’s the kind of issue that can remain as is and not get any worse for a very long time and as such he said to not worry and enjoy the car.
He said if it gets to a point where it’s piston slapping all the time and loud is the point where it’s time to sort it and it’s something he could do and be happy to sort.
He fitted new PS pump, confirmed the car now has zero PS fluid or oil leaks so my valve gasket cover change sorted that and new pump has sorted that.
He fitted all new belts, new track rod ends, new rear camber arms, he also regressed every suspension nipple.
He said most of the underpinning LDS of the car look brand new and confirmed all fuel lines are spotless with half been new and other half in hood condition, confirmed zero rust or rot.
He was able to confirm the car has been painted and whoever did it that it was done to a very high standard and that the car shows zero signs of ever been in an accident so is totally straight.
He was able to align it back to factory specification and centre steering box too. He ask me the story of the car and said it’s very lucky to not only find such a good quality car but one that is so original and in such good condition. He said leave the engine and enjoy as he believes it will never be an issue and if it ever does then it’s worth fixing to keep a numbers matching car.
He said it drives superb and on the drive home the alignment and suspension refresh has really tightened it up even more and made it feel quite confident inspiring. Car definetely pulls better since I did the valve lash too, I’d need to time it but 0-60 feels like it’s easily around 6s, not bad for something so old.
Gonna enjoy it now with only mods planned of rear composite spring and maybe 1” front lowering springs to get it sitting really nice as I’ve got 8” adjustable bolts in rear so can adjust height but front is convention springs so I’d either need to cut 1/3-1/2 a coil of each one to get around 1” drop or see what lowering spring options there is.
Oh and he did say as the AC does not work and Re gas to newer gas would no doubt leak out he suggested it’s probably worth pulling all the AC kit out, I’ve had a look online and the AC stuff all removed is like 60-70kg out the car, a rear composite spring will save 15-20kg too so I think I may do that as 100kg more or less out the car will improve it even more.
Collected Corvette today.
Mechanic after having car a couple of days, cold starts and driving it has said the engine has piston slap and hence the noise that tends to be present on cold starts and fades as it warms and the noise then heard is tappets.
He has however told me not to worry and to do nothing as in his opinion from other 359 small blocks and several Ford performance engines he said it’s the kind of issue that can remain as is and not get any worse for a very long time and as such he said to not worry and enjoy the car.
He said if it gets to a point where it’s piston slapping all the time and loud is the point where it’s time to sort it and it’s something he could do and be happy to sort.
He fitted new PS pump, confirmed the car now has zero PS fluid or oil leaks so my valve gasket cover change sorted that and new pump has sorted that.
He fitted all new belts, new track rod ends, new rear camber arms, he also regressed every suspension nipple.
He said most of the underpinning LDS of the car look brand new and confirmed all fuel lines are spotless with half been new and other half in hood condition, confirmed zero rust or rot.
He was able to confirm the car has been painted and whoever did it that it was done to a very high standard and that the car shows zero signs of ever been in an accident so is totally straight.
He was able to align it back to factory specification and centre steering box too. He ask me the story of the car and said it’s very lucky to not only find such a good quality car but one that is so original and in such good condition. He said leave the engine and enjoy as he believes it will never be an issue and if it ever does then it’s worth fixing to keep a numbers matching car.
He said it drives superb and on the drive home the alignment and suspension refresh has really tightened it up even more and made it feel quite confident inspiring. Car definetely pulls better since I did the valve lash too, I’d need to time it but 0-60 feels like it’s easily around 6s, not bad for something so old.
Gonna enjoy it now with only mods planned of rear composite spring and maybe 1” front lowering springs to get it sitting really nice as I’ve got 8” adjustable bolts in rear so can adjust height but front is convention springs so I’d either need to cut 1/3-1/2 a coil of each one to get around 1” drop or see what lowering spring options there is.
Oh and he did say as the AC does not work and Re gas to newer gas would no doubt leak out he suggested it’s probably worth pulling all the AC kit out, I’ve had a look online and the AC stuff all removed is like 60-70kg out the car, a rear composite spring will save 15-20kg too so I think I may do that as 100kg more or less out the car will improve it even more.
Caporegime
Yeah that sounds more like it, definitely could tell it wasn't lifter tick.
If it was me, I'd get it done later in the year, get the bits imported and sort it. it's a nice car and presumably one you want to keep for a while.
If it was me, I'd get it done later in the year, get the bits imported and sort it. it's a nice car and presumably one you want to keep for a while.
Yeah I’ve done some reading up and found quite a few post on forums and Facebook of people complaining about with some getting it even on new engines with around 1000 miles, supposedly the L82 are more susceptible to it due to the forged parts and some ignore it and have no issues and others think in time it will get worse at which point sort it.
I’ll keep a listen out for it getting worse and when Winter comes look at maybe getting the parts needed and sorting it during the colder months.