Discussion
Without dismantling the engine, you came verify this by using a dial gauge with a rod down the plug hole of No 1 cylinder.
Check where TDCis turning the crank clockwise and repeat anticlockwise.
Now this can be done fairly accurately but....you can maka a mistake as there are a few cockup variables.
I suggest doing this 3-4 times and see if you get the same results.
When I checked mine dismantled, the timing mark was spot on!
As to 22 degrees, a 5.0 is 28 deg BTDC with the vacumn removed at 4K.
Check where TDCis turning the crank clockwise and repeat anticlockwise.
Now this can be done fairly accurately but....you can maka a mistake as there are a few cockup variables.
I suggest doing this 3-4 times and see if you get the same results.
When I checked mine dismantled, the timing mark was spot on!
As to 22 degrees, a 5.0 is 28 deg BTDC with the vacumn removed at 4K.
haircutmike said:
Without dismantling the engine, you came verify this by using a dial gauge with a rod down the plug hole of No 1 cylinder.
Check where TDCis turning the crank clockwise and repeat anticlockwise.
Now this can be done fairly accurately but....you can maka a mistake as there are a few cockup variables.
I suggest doing this 3-4 times and see if you get the same results.
When I checked mine dismantled, the timing mark was spot on!
As to 22 degrees, a 5.0 is 28 deg BTDC with the vacumn removed at 4K.
When you say dial gauge, do you mean a compression tester? So you use this to make sure cylinder numero 1 is compressing, and then once you're sure it is, put the rod in until the piston is at the top of its travel? Check where TDCis turning the crank clockwise and repeat anticlockwise.
Now this can be done fairly accurately but....you can maka a mistake as there are a few cockup variables.
I suggest doing this 3-4 times and see if you get the same results.
When I checked mine dismantled, the timing mark was spot on!
As to 22 degrees, a 5.0 is 28 deg BTDC with the vacumn removed at 4K.
And 28 for a 5? So 22 may be correct for the 450?
A dial gauge measures the movement of the pointer of the gauge in hundredths of a mm.
So, set up a gauge on the top of the head, take out a plug, drop a steel rod down the plug hole, make up a wire holder to hold the rod so it travels in a straight line,...then turn the crank slowly and gauge your readings.
To be fair to you, if this is totally new to you you should engage the help of someone who knows about this.
A dial gauge.
As to correct timing, I'll do a little Google search.
So, set up a gauge on the top of the head, take out a plug, drop a steel rod down the plug hole, make up a wire holder to hold the rod so it travels in a straight line,...then turn the crank slowly and gauge your readings.
To be fair to you, if this is totally new to you you should engage the help of someone who knows about this.
A dial gauge.
As to correct timing, I'll do a little Google search.
haircutmike said:
A dial gauge measures the movement of the pointer of the gauge in hundredths of a mm.
So, set up a gauge on the top of the head, take out a plug, drop a steel rod down the plug hole, make up a wire holder to hold the rod so it travels in a straight line,...then turn the crank slowly and gauge your readings.
To be fair to you, if this is totally new to you you should engage the help of someone who knows about this.
A dial gauge.
As to correct timing, I'll do a little Google search.
Ok, thanks for that, that doesn't sound too strenuous. So, set up a gauge on the top of the head, take out a plug, drop a steel rod down the plug hole, make up a wire holder to hold the rod so it travels in a straight line,...then turn the crank slowly and gauge your readings.
To be fair to you, if this is totally new to you you should engage the help of someone who knows about this.
A dial gauge.
As to correct timing, I'll do a little Google search.
As for the google search, I've tried one. The timing was done by an ex TVR employee so I have no doubt 22 will be right, it's just I'd read on here that sometimes the timing marks were incorrect, so got a bit worried!
Is the car a Serp or pre-Serp model I presume the motor is stock too? If the marks are where they should be then 22 degrees of advance at 4k is not enough 
not only will you be wasting fuel & losing HP you will be heating up your engine bay nicely for no good reason 
not only will you be wasting fuel & losing HP you will be heating up your engine bay nicely for no good reason Edited by Simon says on Tuesday 15th May 11:31
Simon says said:
Is the car a Serp or pre-Serp model I presume the motor is stock too? If the marks are where they should be then 22 degrees of advance at 4k is not enough not only will you be wasting fuel & losing HP you will be heating up your engine bay nicely for no good reason
It's a stock 1998 Chimaera 450. not only will you be wasting fuel & losing HP you will be heating up your engine bay nicely for no good reason Edited by Simon says on Tuesday 15th May 11:31
Gassing Station | Chimaera | Top of Page | What's New | My Stuff