Engine ID and camshaft wear
Discussion
This is my first TVR - an R reg 450 with 30K miles - backed up by MOT certs and other docs.
Engine is now out ( significant oil leaks and chronic over fuelling but no fault codes )
Original engine no 37A45P5658.
Existing engine no S46D01019A.
The block has balanced and lightened pistons and crank, vernier timing chain wheel and rhoads lifters.
The camshaft is stamped TVR 435RM 119321116. Appears to have little wear, but only to one side of each lobe.
Heads are standard Rover with double valve springs.
There is lots of history - but nothing related to an engine change
Is it normal for cams to wear in this way?
Is it possible that TVR used a 4.6 block ?
Engine is now out ( significant oil leaks and chronic over fuelling but no fault codes )
Original engine no 37A45P5658.
Existing engine no S46D01019A.
The block has balanced and lightened pistons and crank, vernier timing chain wheel and rhoads lifters.
The camshaft is stamped TVR 435RM 119321116. Appears to have little wear, but only to one side of each lobe.
Heads are standard Rover with double valve springs.
There is lots of history - but nothing related to an engine change
Is it normal for cams to wear in this way?
Is it possible that TVR used a 4.6 block ?
I've replied to this question on the TVRCC forum as well.
Are you sure you're looking at the correct engine number?
The second number you've quoted sounds like a Rover block initially intended for a 3.9 Morgan as the sequence S46D0000A is associated with the Morgan block.
That said it's not uncommon for the blocks supplied to TVR to have originally been identified for other applications.
The first number you've quoted is a TVR engine number. The TVR # is on the front of the engine iirc whereas the Rover # is under the exhaust manifold.
If it was a non TVR engine in it's unlikely to be running a TVR cam I'd suggest..
ETA That engine number
Are you sure you're looking at the correct engine number?
The second number you've quoted sounds like a Rover block initially intended for a 3.9 Morgan as the sequence S46D0000A is associated with the Morgan block.
That said it's not uncommon for the blocks supplied to TVR to have originally been identified for other applications.
The first number you've quoted is a TVR engine number. The TVR # is on the front of the engine iirc whereas the Rover # is under the exhaust manifold.
If it was a non TVR engine in it's unlikely to be running a TVR cam I'd suggest..
ETA That engine number
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