will abf metal head gasket fit a 3a block??

hi

looks like i'm going to be changing the head gasket on my conversion, so want a metal one if poss.

will a abf metal one fit the 3a block??

cheers

Chris

 

Yeah... all the 2.0 ones are the same (actually, not 100% sure about the X-Flow 8v's)

Anyway, the answer to your question is YES

 

nice one cheers Mike

Chris

 

this is what i use with my 1.8 pb head and 2e bottom end, as i've heard because its metal it will rasie compression?

is this true and what would the compression be? its tought a F**K to turn over by hand, compared to my old 1.8 which was in good working order too.

Can you work out the compression ratio if you know the actul compression in each pot?

 

Not really... the gasket material doesn't affect compression. It's slightly thicker (minimal) so if anything the extra thickness will very marginally lower the Compression Ratio.

If you're turning it over by hand, take the plugs out!

Also if your old 1.8 was tired, it could have been very easy and loose to turn... depends on friction between the rings and the bore walls, friction in the bearings, how much and what type of oil, etc.

I couldn't work out the CR from the compression readings on a gauge... the way to do it is to measure things while static.

a simple example:

A 1984cc engine has 496cc per cylinder (swept volume)

If the volume of the combustion chamber in the head, + the piston dish, + the thickness of the gasket is 49.6cc, then that would give you 10:1, which is the standard CR on a PB 8v or KR 16v engine.


If anyone has some clever tricks to help with this, I'd be happy to hear it!

 

I don't think the old lump was too worn but did't take it apart so i wouldn't really know to be sure didn't smoke and still pulled well.

I was just surprised be how hard it was to turn over by hand. This must be a good sign tho? engine runs well pulls like a train and i'm very happy with it. I will do a compression check just so i can monitor it.

 

Depends... if it's half-seized it'll be hard to turn too!

 

gsf don't have any at all according to the guy there, and would take 2 weeks to order one in

they have the fibre ones but i suppose i might aswel just fit a 3a one then??

would other motor factors stock the metal ones??

cheers

Chris

 

Ask for an AGG one they too are metal. probably the same gasket

 

Euro Car Parts list one, although it doesn't say whether it's metal or not.