Too much cam noise?
Discussion
Its done about 400 miles since finishing the rebuild & is running very well, lovely to drive, but I can't remember how noisy the engine used to be as it's a good few years ago when it was last running. So I'm nursing it round at under 4k revs.
I had the problem with the valve getting stuck in the new guide so had to pull the engine back out, it's now got all new valves, exhaust guides & one new bucket. Obviously it should really have had a new cam & a new set of buckets but the machine shop weren't going to stretch to that, it was the best part of 1Ks worth of parts they gave me to rebuild it with as it was.
I set the clearances at 10 & 12 thou, they had ended up much closer than that (some at 0 hence the new valves) before the rebuild, so it stands to reason it will be noisier now. Just I'm not sure how noisy it should be.
I should really take the valve covers off & have a look but I just haven't got the time. So was hoping someone could listen to it & see if you think the noise warrants finding some time.
Rubish vid here
(The oil temp won't seem to go much above 50 this time of year) At the end of the vid I get in & shut the door, it's very quite then.
I had the problem with the valve getting stuck in the new guide so had to pull the engine back out, it's now got all new valves, exhaust guides & one new bucket. Obviously it should really have had a new cam & a new set of buckets but the machine shop weren't going to stretch to that, it was the best part of 1Ks worth of parts they gave me to rebuild it with as it was.
I set the clearances at 10 & 12 thou, they had ended up much closer than that (some at 0 hence the new valves) before the rebuild, so it stands to reason it will be noisier now. Just I'm not sure how noisy it should be.
I should really take the valve covers off & have a look but I just haven't got the time. So was hoping someone could listen to it & see if you think the noise warrants finding some time.
Rubish vid here
(The oil temp won't seem to go much above 50 this time of year) At the end of the vid I get in & shut the door, it's very quite then.
That sounds very noisy compared to my 4.5.
I'm not sure if I've ever heard an early clatter cam engine which mine obviously isn't and I don't know whether yours is, but yours does sound noisy compared to every other Cerb I've heard - stone cold start aside maybe but that's more piston slap noise which quietens fairly quickly.
ETA: I see it's a 4.5 also so it shouldn't be that noisy IMO.
I'm not sure if I've ever heard an early clatter cam engine which mine obviously isn't and I don't know whether yours is, but yours does sound noisy compared to every other Cerb I've heard - stone cold start aside maybe but that's more piston slap noise which quietens fairly quickly.
ETA: I see it's a 4.5 also so it shouldn't be that noisy IMO.
Edited by jamieduff1981 on Tuesday 2nd December 19:52
Here's a link to my old 4.2 fitted with clatter cams http://youtu.be/arq4FBP9AXQ
The tappet clearances were set the same as yours
Why don't you take your car to a TVR Indy for an expert opinion now its up and running.
The tappet clearances were set the same as yours
Why don't you take your car to a TVR Indy for an expert opinion now its up and running.
Edited by Gray_101 on Tuesday 2nd December 21:06
Thanks for listening eveyone, yes I keep waiting for the noise to go away as it warms up but that just isn't happening.
The rubbish phone mic isn't helping how it sounds, it looses a lot of the bass of the exhaust that masks the noise when your next to it, but I was thinking even so it sounds a bit too noisy.
Typically out of the 7 cars that are here the Cerb is the only one I can legally drive on the road at the mo. Lucky I don't actually have to drive it anywhere, I just need an emergency car here as I'm looking after the kids now (between messing about with all the other cars!)
My better half is getting a 640d very soon so that will free up her old 530i for me, then I'll have a poke at the Cerb.
The rubbish phone mic isn't helping how it sounds, it looses a lot of the bass of the exhaust that masks the noise when your next to it, but I was thinking even so it sounds a bit too noisy.
Typically out of the 7 cars that are here the Cerb is the only one I can legally drive on the road at the mo. Lucky I don't actually have to drive it anywhere, I just need an emergency car here as I'm looking after the kids now (between messing about with all the other cars!)
My better half is getting a 640d very soon so that will free up her old 530i for me, then I'll have a poke at the Cerb.
Listening to your video, I would suggest not running that until you have opened it up for a look inside. Very noisy in my opinion. I have a video of my engine on the tube so you might be able to compare. I don't know much about my car as I'm learning as I go, but it's a 4.2 1997, don't know what cam it has, it clatters but it's more like they are all clattering evenly, yours sounds like its not all the lifters if you see what I mean, it's not frequent enough to be all of them.
Go to the end of the clip to hear... http://youtu.be/-dM0getVauM
Go to the end of the clip to hear... http://youtu.be/-dM0getVauM
You say you've done 400 miles since rebuild, presumably the cam wasn't like that already then. SO, the follower has marked up and the cam is wearing after 400 miles. Did you flood the top end with oil before starting? The ajp is normally very kind on its cams because the followers sit in an oil bath so never run dry on that all important startup period.
Is the follower that's marked up the one you changed by any chance? I saw an engine that had not long had a rebuild, was in for valve check and mapping and two followers were already scored and one was taking the cam lobe with it.
Is the follower that's marked up the one you changed by any chance? I saw an engine that had not long had a rebuild, was in for valve check and mapping and two followers were already scored and one was taking the cam lobe with it.
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