Piston rings.

[Pablo23]

Hi to all,i have a Mk3 69 spitfire which seems a little down on top end power and emits smoke from the top of the rocker cover where it joins the smiths emissions valve, it also started smoking from a small hole in the fuel pump and all this enters the foot well of the passenger side.I have taken it to a local garage for some advice and was told that the rings needed changing and that the cylinders would need re boring and the crank re ground and pollished, all totaling £1500.00.
Please could any one else advise as to wether this is the correct course of action or am i bieng taken for a ride, and the rings only need changing?.
Many thanks in advance.

[Boosted LS1]

Seems expensive to me but this will include the engine removal and refitment. I'd ask what the hourly rate is and consider if you can remove the engine more cheaply. The actual engine work shouldn't be to expensive. I'd get a second opinion regarding the engines condition. Get a cylinder compression test done. I'd also chect the pcv or emmissions circuit you mention is working properly and isn't blocked/restricted in some way.

Boosted.

[Pablo23]

Thanks Boosted, i`ve changed the diagphram in the emissions valve and the spring is fine too, just put a new fuel pump on and its no longer coming from there now. I`ll try a compression test soon as, does the crank realy need re grinding along with a re bore though, thats the bit i`m suspicious about?

Cheers.

[Boosted LS1]

Pablo23 said:

does the crank realy need re grinding along with a re bore though, thats the bit i`m suspicious about?

Cheers.

That depends on what an inspection reveals. It could be that the cranks fine and a new set of shells is all that's required. As for the bores, they may just need honing and fresh rings. Or, if well worn they'd need boring, honing and new pistons plus rings.

The compression test will tell you a lot about the top end condition of the engine.

[Pablo23]

Thanks very much Boosted for your advice its much apreciated.

Cheers.