Discussion
Well thats probably answered you intend motive power - small block V8 here we come....count those ponies and that exhaust note....
Rear suspension requires some thought as I would have thought you want a full wishbone set-up, not the V8S affair. Remember too that Mr. Smith cracked wishbones with power and had them further triagulated.
I suppose in your situation, you could also move the footwells back to get the engine nicely positioned, since you don't require the full leg extension!!!!
davidy
Rear suspension requires some thought as I would have thought you want a full wishbone set-up, not the V8S affair. Remember too that Mr. Smith cracked wishbones with power and had them further triagulated.
I suppose in your situation, you could also move the footwells back to get the engine nicely positioned, since you don't require the full leg extension!!!!
davidy
Hi,
No, the noise is still there (no better, no worse)and I've put about 14,000 miles on the car since last june. It doesn't seem to affect the performance, so I don't really know what it is.
One theory is that the rocker face where it contacts the valve stem becomes dimpled or pitted. When you slide a feeler gauge in to check the clearances, you will 'bridge' this depression in the rocker arm face, leading to excess clearance.
The Car Clinic does a set of roller rockers for the Essex V6 for about £135+vat. If I'm feeling keen I may try those at some point in the future.
No, the noise is still there (no better, no worse)and I've put about 14,000 miles on the car since last june. It doesn't seem to affect the performance, so I don't really know what it is.
One theory is that the rocker face where it contacts the valve stem becomes dimpled or pitted. When you slide a feeler gauge in to check the clearances, you will 'bridge' this depression in the rocker arm face, leading to excess clearance.
The Car Clinic does a set of roller rockers for the Essex V6 for about £135+vat. If I'm feeling keen I may try those at some point in the future.
Hi
As you say a common problem on the Essex is that the face of the rocker where it press on the valve stem is worn concave, if so it is really difficult to adjust the valve clearance and the valve train easily gets noisy. The cure is to remove each rocker and grind them flat or preferably somehat convex, I did that on my engine and that cured a lot of the noise.
Another possibilty is that one of the exhaust gaskets is blowing, sometimes it can sound exactly as with excessive valve clearance, I use exhaust sealing paste together with standard gaskets and it works fine.
It is possible to remove the camshaft with the engine in the car if that should be necessary, however one of chassis crossmembers in front of the engine is hindering the removal of the camshaft, (the camshaft will hit the crossmember when it is withdrawn) so the engine mounts have to be loosened and the engine lifted a slight amount, another Essex problem is that in order to remove the lifters it is necessary to remove the cylinder heads as the lifters can't be removed otherwise but it can be done, (I have changed the camshaft with the engine in the car).
The advantages of using roller rockers in the Essex I believe is not worth the the extra cost, the standard rockers works well if they are in good shape at least for normal road type cams.
Regards Hans
As you say a common problem on the Essex is that the face of the rocker where it press on the valve stem is worn concave, if so it is really difficult to adjust the valve clearance and the valve train easily gets noisy. The cure is to remove each rocker and grind them flat or preferably somehat convex, I did that on my engine and that cured a lot of the noise.
Another possibilty is that one of the exhaust gaskets is blowing, sometimes it can sound exactly as with excessive valve clearance, I use exhaust sealing paste together with standard gaskets and it works fine.
It is possible to remove the camshaft with the engine in the car if that should be necessary, however one of chassis crossmembers in front of the engine is hindering the removal of the camshaft, (the camshaft will hit the crossmember when it is withdrawn) so the engine mounts have to be loosened and the engine lifted a slight amount, another Essex problem is that in order to remove the lifters it is necessary to remove the cylinder heads as the lifters can't be removed otherwise but it can be done, (I have changed the camshaft with the engine in the car).
The advantages of using roller rockers in the Essex I believe is not worth the the extra cost, the standard rockers works well if they are in good shape at least for normal road type cams.
Regards Hans
Hi Simon,
I used an ordinary electric bench grinder , you know the type that is used to sharpen tools in a workshop, the material in the rockers is quite hard so you need something like this to do the work properly. I tried to make some kind of jig to make sure that the rocker face was in exactly 90 deg angle to the rocker post but in the end I did the grinding holding the rockers in my hand and it worked all right, it doesn't seem to be critical.
Regards Hans
I used an ordinary electric bench grinder , you know the type that is used to sharpen tools in a workshop, the material in the rockers is quite hard so you need something like this to do the work properly. I tried to make some kind of jig to make sure that the rocker face was in exactly 90 deg angle to the rocker post but in the end I did the grinding holding the rockers in my hand and it worked all right, it doesn't seem to be critical.
Regards Hans
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