help - engine identification
Discussion
The addition of swirl pot and expansion tank would indicate 500 as 4x didn't have the swirl pot, but it could have been modified later so no gaurantee.
The only way for certain without stripping it would be from the engine serial number...IIRC there is something in the Bible regarding seriel number identification and also 400, 430 or 500 being engraved on it somewhere?
The only way for certain without stripping it would be from the engine serial number...IIRC there is something in the Bible regarding seriel number identification and also 400, 430 or 500 being engraved on it somewhere?
All the 5 litres had cats fitted.
Of course if it's a 4.x block fitted with 500 ancilliaries it's very much more difficult. The cooling system sounds like a 500. But were 500s fitted with black 'TVR cast' rocker covers?
Later 500s will have had 10 bolt heads (no extra row of head bolts below the exhaust manifold) - but these won't be pre serp engines.
I take it you're trying to work out if a car has had an engine swap? As identifying 500 vs 4.x cars is easy.
You could try looking at the ecu - should have a hand written engine designation on the cover. If you can open it, the chip should have the fuel map engine type written on it - but a 4.x will run happily on a 500 ecu with the right tune resistor.
If it comes down to identifying the capacity of a block with unknown ancilliaries, your best bet might be to get the engine number and ask TVR Power if they have resords.
Of course if it's a 4.x block fitted with 500 ancilliaries it's very much more difficult. The cooling system sounds like a 500. But were 500s fitted with black 'TVR cast' rocker covers?
Later 500s will have had 10 bolt heads (no extra row of head bolts below the exhaust manifold) - but these won't be pre serp engines.
I take it you're trying to work out if a car has had an engine swap? As identifying 500 vs 4.x cars is easy.
You could try looking at the ecu - should have a hand written engine designation on the cover. If you can open it, the chip should have the fuel map engine type written on it - but a 4.x will run happily on a 500 ecu with the right tune resistor.
If it comes down to identifying the capacity of a block with unknown ancilliaries, your best bet might be to get the engine number and ask TVR Power if they have resords.
Probably the quickest and dirtiest way will be to drop the oil put and drop the sump off.
Although measuring the throw of the crank will also be difficult to measure, you should be able to see the grinding marks where the block has been modded to clear the crank.
Quinny engine rebuild document shows this clearance issue.
Ant
Although measuring the throw of the crank will also be difficult to measure, you should be able to see the grinding marks where the block has been modded to clear the crank.
Quinny engine rebuild document shows this clearance issue.
Ant
Thanks I found the number on the engine next to the oil stick and it confirmed it is a 500 pre-serp (I had already sent previously the engine number mentionned on the vehicle tag to dom at tvr power).
To me it's good and bad news at the same time:
Indeed I am back to square 1, as the power numbers of the car are 20% too low - and dont match with the numbers from Dom's register (306HP, 450Nm, very strong engine)... plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
I still dont know if I would have preferred finding out a 4.x engine with the right output numbers (I have checked the output at 2 different serious places here in Switzerland), instead of a 5.0 with a headache (allthough the cam was recently exchanged to a Kent 234, motor runs ok, very agressive, great acceleration, overperformed 2 other standard 500 serp griff (note that they may have been penalized a bit by their longer-ratioed T5 gearbox - mine as the LT77), but the numbers just dont match at all) ... :-)
Or do I miss the point ?
Cheers,
Alain
To me it's good and bad news at the same time:
Indeed I am back to square 1, as the power numbers of the car are 20% too low - and dont match with the numbers from Dom's register (306HP, 450Nm, very strong engine)... plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
I still dont know if I would have preferred finding out a 4.x engine with the right output numbers (I have checked the output at 2 different serious places here in Switzerland), instead of a 5.0 with a headache (allthough the cam was recently exchanged to a Kent 234, motor runs ok, very agressive, great acceleration, overperformed 2 other standard 500 serp griff (note that they may have been penalized a bit by their longer-ratioed T5 gearbox - mine as the LT77), but the numbers just dont match at all) ... :-)
Or do I miss the point ?
Cheers,
Alain
Edited by carbon14 on Sunday 11th May 15:14
Edited by carbon14 on Sunday 11th May 15:16
Thanks I found the number on the engine next to the oil stick and it confirmed it is a 500 pre-serp (I had already sent previously the engine number mentionned on the vehicle tag to dom at tvr power).
To me it's good and bad news at the same time:
Indeed I am back to square 1, as the power numbers of the car are 20% too low - and dont match with the numbers from Dom's register (306HP, 450Nm, very strong engine)... plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
I still dont know if I would have preferred finding out a 4.x engine with the right output numbers (I have checked the output at 2 different serious places here in Switzerland), instead of a 5.0 with a headache (allthough the cam was recently exchanged to a Kent 234, motor runs ok, very agressive, great acceleration, overperformed 2 other standard 500 serp griff (note that they may have been penalized a bit by their longer-ratioed T5 gearbox - mine has the LT77), but the numbers just dont match at all) ... :-)
Or do I miss the point ?
Cheers,
Alain
To me it's good and bad news at the same time:
Indeed I am back to square 1, as the power numbers of the car are 20% too low - and dont match with the numbers from Dom's register (306HP, 450Nm, very strong engine)... plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
I still dont know if I would have preferred finding out a 4.x engine with the right output numbers (I have checked the output at 2 different serious places here in Switzerland), instead of a 5.0 with a headache (allthough the cam was recently exchanged to a Kent 234, motor runs ok, very agressive, great acceleration, overperformed 2 other standard 500 serp griff (note that they may have been penalized a bit by their longer-ratioed T5 gearbox - mine has the LT77), but the numbers just dont match at all) ... :-)
Or do I miss the point ?
Cheers,
Alain
Edited by carbon14 on Sunday 11th May 15:14
Edited by carbon14 on Sunday 11th May 15:16
JR said:
carbon14 said:
plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
Very worrying.
LordGrover said:
JR said:
carbon14 said:
plus an inacceptable oil consumption (too high by a factor 3, i.e. 1Liter per 250/300km).
Very worrying.carbon14 said:
no smoke at all, no leak. Oil is just "disappearing". Indeed worrying...
I just dont understand why I did not have this oil issue before the cam exchange...
I just dont understand why I did not have this oil issue before the cam exchange...
obviously it doesn't just disappear and if you don't have a puddle under the car it IS being burnt. If its only happened since a Cam change then perhaps the stem seals are now leaking/disturbed. If you are using that much oil I'd expect you to pull the plugs an find a poor burning cylinder tbh.
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