Discussion
Hi,
My 3000 M makes a slight rattling noise at all times when its running.
Adrian at Exactly-TVR has set the valves and they're OK. He said he's heard worse noises from otherwise healthy engines.
Could this be the camshaft moving back and forth? Maybe a thrust button is missing from the end of it.
Anyone else got a noisy V6?
Simon
My 3000 M makes a slight rattling noise at all times when its running.
Adrian at Exactly-TVR has set the valves and they're OK. He said he's heard worse noises from otherwise healthy engines.
Could this be the camshaft moving back and forth? Maybe a thrust button is missing from the end of it.
Anyone else got a noisy V6?
Simon
Simon,
What sort of frequency rattle and can you tell if its coming from the top or bottom of the engine. Does it change frequency with revs?? ie is it engine driven.
Another test would be to remove the belt and run engine for a short while without it. That would eliminate water pump, alternator, front pulleys, etc
davidy
What sort of frequency rattle and can you tell if its coming from the top or bottom of the engine. Does it change frequency with revs?? ie is it engine driven.
Another test would be to remove the belt and run engine for a short while without it. That would eliminate water pump, alternator, front pulleys, etc
davidy
Hi,
It definitely follows engine speed. I originally thought it was noisy valve clearances (hence my earlier posts a couple of weeks ago)but the clearances are fine and the noise is still there.
It does sound like the camshaft, but I think I've convinced myself of that so I'm not being objective.
I'll try removing the fan belt and see what that does.
I removed the fuel pump and ran the engine, but the noise was still there.
The car seems fine otherwise, good oil pressure etc. so I'm not too worried, just curious.
It definitely follows engine speed. I originally thought it was noisy valve clearances (hence my earlier posts a couple of weeks ago)but the clearances are fine and the noise is still there.
It does sound like the camshaft, but I think I've convinced myself of that so I'm not being objective.
I'll try removing the fan belt and see what that does.
I removed the fuel pump and ran the engine, but the noise was still there.
The car seems fine otherwise, good oil pressure etc. so I'm not too worried, just curious.
Try the fan belt trick, if that doesn't silence it its going to get more scary!!!
Does it quieten down after the tappets have been set and then re-appear?
Even though all the tappets have been set I would recheck them as the interference nuts could no longer
be interference.
Rocker studs are only a press-fit into the head and can work loose over time.
It could well be cam related, but could be a worn lobe?? The cam is a bit of a bitch to get at and really needs an engine out job. Rebuilding Essex egines is not cheap either.
How is the rest of the car apart from your earlier posts. As this car was 'such a bargain' hopefully your pockets are deep enough to fix it up and it hasn't pissed you off too much yet.
davidy
Does it quieten down after the tappets have been set and then re-appear?
Even though all the tappets have been set I would recheck them as the interference nuts could no longer
be interference.
Rocker studs are only a press-fit into the head and can work loose over time.
It could well be cam related, but could be a worn lobe?? The cam is a bit of a bitch to get at and really needs an engine out job. Rebuilding Essex egines is not cheap either.
How is the rest of the car apart from your earlier posts. As this car was 'such a bargain' hopefully your pockets are deep enough to fix it up and it hasn't pissed you off too much yet.
davidy
I've wondered about the worn cam as well. I was hoping that it might be possible to fix with the engine in the car.
The car is basically OK, it hasn't been used much over the last few years so needs 'fettling' as much as anything else.
I've got a new set of tyres for it and will need new shocks and brakes soon.
I'm picking up my inspection report from Exactly-TVR today, but the general opinion is that its in good shape for its age. The chassis seems OK as well, surface rust to deal with in the main. The rear section of the chassis has been saved by the shocks leaking all over it.....
I plan to keep using it over the summer and then asess what I want to do. It won't be worth restoring to pristine condidition as its not worth it - there are other cars out there that I could buy.
I do like it though, so if I keep it I won't fret about the cosmetics too much, but just enjoy it for what it is. :-)
The car is basically OK, it hasn't been used much over the last few years so needs 'fettling' as much as anything else.
I've got a new set of tyres for it and will need new shocks and brakes soon.
I'm picking up my inspection report from Exactly-TVR today, but the general opinion is that its in good shape for its age. The chassis seems OK as well, surface rust to deal with in the main. The rear section of the chassis has been saved by the shocks leaking all over it.....
I plan to keep using it over the summer and then asess what I want to do. It won't be worth restoring to pristine condidition as its not worth it - there are other cars out there that I could buy.
I do like it though, so if I keep it I won't fret about the cosmetics too much, but just enjoy it for what it is. :-)
I seem to remember Colin that the fan belt wanted to perform the test itself, of the three spare ones that you had in your boot, I seemed to recall that only one fitted.
As for my knees, I think that it was cold draughts that caused the knocking since your 3000S had the extra ventilation slots specified, but at least that gives the water somewhere to drain out of!!!
Agree with you about the distributor drive, could be a £4 fix rather than an engine out.
davidy
As for my knees, I think that it was cold draughts that caused the knocking since your 3000S had the extra ventilation slots specified, but at least that gives the water somewhere to drain out of!!!
Agree with you about the distributor drive, could be a £4 fix rather than an engine out.
davidy
Hi,
I tried running the engine with the fan belt off, but the noise is still there. Sounds like its coming from the back of the engine in the lifter valley (although sounds can travel well....).
The distributor shaft seems OK as well, but I just wiggled it with the dizzy still in the engine.
I'll check the valves next, although the clearances were re-set by Exactly-TVR a couple of weeks ago. The noise was still there after that.
I did notice that the noise was only intermittent immediately on startup and then became more regular as the engine warmed and the oil started flowing. Sort of like the reverse situation to hydraulic lifters.
Apart from that the car is going well and doesn't seem to use any oil or water. Oil pressure is about 50Lbs when warm at idle.
Any new theories anyone?
I tried running the engine with the fan belt off, but the noise is still there. Sounds like its coming from the back of the engine in the lifter valley (although sounds can travel well....).
The distributor shaft seems OK as well, but I just wiggled it with the dizzy still in the engine.
I'll check the valves next, although the clearances were re-set by Exactly-TVR a couple of weeks ago. The noise was still there after that.
I did notice that the noise was only intermittent immediately on startup and then became more regular as the engine warmed and the oil started flowing. Sort of like the reverse situation to hydraulic lifters.
Apart from that the car is going well and doesn't seem to use any oil or water. Oil pressure is about 50Lbs when warm at idle.
Any new theories anyone?
quote:
Adrian at Exactly-TVR has set the valves and they're OK. He said he's heard worse noises from otherwise healthy engines.
Ok, sounds like you have two options.
1. Get the camshaft out and inspect for wear, replace if necessary along with followers, bearings etc. and hope that this will cure it.
2. Turn up the radio and forget about it. That rattle has probably been there for the past 10 years and will be for another 10 without affecting the running of the car.
Thanks Terminator for the Words of wisdom. I'll probably take option 2 (maybe louder exhaust instead of radio) and see what happens.
From all accounts, its just as much work to remove the engine as it is to take the cam out in situ, so if I get to that stage then I guess I may as well go for a rebuild.
When do you plan to start your 3000S project?
From all accounts, its just as much work to remove the engine as it is to take the cam out in situ, so if I get to that stage then I guess I may as well go for a rebuild.
When do you plan to start your 3000S project?
Terminators 3000S project started in about 1983, its just been a long time evolving!! and the final incarnation is yet to be seen....
Best of luck with it Colin, as you probably know, I've sold all my TVRs, but one day I will return, when the children have all grown up, I'll be able to get a Tuscan-R then for about £1.59!!! I didn't keep any of the TVRs because I thought that when I'm old and knackered I wouldn't want to drive a Grantura, Vixen or M series car, so I'll get rid of them now as they won't get used over the next few years. May buy a 911 later this year (2+2), can't afford a Cerbera running costs and don't want a Tasmin 2+2 (thank you before you ask).
..Interested to know on your motive power... as I have looked at many different options for M's in the past, I reckon the following two conversions must be done in the future:-
Vixen or M with Honda 2 litre from S2000, the characteristics of the engine would suit a Vixen really well.
Cerbera with BMW M3 motor (PW would obvious put a contract out on anyone who did this, but I reckon it could be a stunning car, 343bhp, lightweight, etc)
davidy
>> Edited by davidy on Thursday 11th July 12:08
Best of luck with it Colin, as you probably know, I've sold all my TVRs, but one day I will return, when the children have all grown up, I'll be able to get a Tuscan-R then for about £1.59!!! I didn't keep any of the TVRs because I thought that when I'm old and knackered I wouldn't want to drive a Grantura, Vixen or M series car, so I'll get rid of them now as they won't get used over the next few years. May buy a 911 later this year (2+2), can't afford a Cerbera running costs and don't want a Tasmin 2+2 (thank you before you ask).
..Interested to know on your motive power... as I have looked at many different options for M's in the past, I reckon the following two conversions must be done in the future:-
Vixen or M with Honda 2 litre from S2000, the characteristics of the engine would suit a Vixen really well.
Cerbera with BMW M3 motor (PW would obvious put a contract out on anyone who did this, but I reckon it could be a stunning car, 343bhp, lightweight, etc)
davidy
>> Edited by davidy on Thursday 11th July 12:08
quote:
..Interested to know on your motive power... as I have looked at many different options for M's in the past
I've been looking at some interesting options too. I was considering a BMW 3.5 engine/box implant (I had a cheap 535i Sport lined up as a donor car) but it would have meant a bonnet bulge and the one thing I'm not doing, is changing the lines of the car. I'll probably stick with Ford power, to retain some degree of originality. Does anyone know where to get tuning parts for a FalconGT engine in this country?
An M chassis, strenghtened in the right places can take over 500 bhp.
I'm stripping and refurbishing an M chassis from next month and I'll decide on mechanical components in the Autumn. Current thinking is to modify it to take V8S front & rear suspension and brakes, I'm sure Dave Wallis will look forward to lightening my wallet!
Dave Smith and Bert Z have radically altered their cars and since Smithy is just up the road, I might pay him a visit if I need to.
Watch this space...
I'm stripping and refurbishing an M chassis from next month and I'll decide on mechanical components in the Autumn. Current thinking is to modify it to take V8S front & rear suspension and brakes, I'm sure Dave Wallis will look forward to lightening my wallet!
Dave Smith and Bert Z have radically altered their cars and since Smithy is just up the road, I might pay him a visit if I need to.
Watch this space...
Gassing Station | TVR Classics | Top of Page | What's New | My Stuff