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Thanks Casper Thats just the info i was after, a great help. D

Hi John   The head doesnt seem to have been machined in any way, and it is from a verylow milage car (although could have gone round the clock) i was hopeing  i could just look at numbers but i guess i will have to mesure volumes and get my rusty head around the maths, is there a known thickness for an un molested head?   Thanks for the input though.  

Hi all could anyone tell me how to tell if my 1200 engine is 8 or 8.5/1 by looking at engine numbers, thanks.

Hi Rangi Get the engine warm, remove oil filler cap, and hold a piece of toilet tissue over the hole with engine running, if it flaps about a lot could be some thing going on with piston rings/bores, would then go for a commpresion test, if not probbably nothing to much. I have had some piston rings that only lasted 5000miles and some that had the gap well out of spec before being fitted, (mad) good quality costs but bad quality costs more, as ive found out to my....  

Hi All Has anyone any experience of this camshaft?i have read a lot about it but would like to know any real world results. Its suposed to be a good cam for the smaller engines but the only info i can find is from interested parties and thats very agresive towards other cam manufacturers sorry about the spelling i havent got my glasses on :) Thanks Derek

Hi All Has anyone any experience of this camshaft?i have read a lot about it but would like to know any real world results. Its suposed to be a good cam for the smaller engines but the only info i can find is from interested parties and thats very agresive towards other cam manufacturers sorry about the spelling i havent got my glasses on :) Thanks Derek

Hi Mark tuffrided crank with main cap straps, corello type rods, ARP bolts and possibly ceramic coated piston crowns. This will be a road car and wont be using huge amounts of boost but needs to be reliable.   D  

Thanks Clive and John Yes i am toying with the idea of a 1300 turbocharged engine for the herald, I want something different  and an engineering challenge. I am not new to turbocharging and have some experience with them, i want to make this a relatively simple lowish pressure set up including the mega spark programmable ignition system with a knock sensor. I would much rather have a turbocharged 1300 than a tuned 1500.     

Thanks John. I have a 13 block and a 15 complete engine so i cant measure the 13 chamber and compare it to the 15. Im not sure what the compression ratio is for the 13 although i have read that its 8.5/1 but that may just be for the US market, ideally i would want 8.0/1.

Thanks John. I have a 13 block and a 15 complete engine so i cant measure the 13 chamber and compare it to the 15. Im not sure what the compression ratio is for the 13 although i have read that its 8.5/1 but that may just be for the US market, ideally i would want 8.0/1.

Hi I wonder if any one could tell me, If i fit a 1500 dolomite head (YC) to a 1300 dolomite engine (DH) would this lower the compression ratio? if so what would be the resulting compression ratio? Just getting the germ of an idea. ;)

When you say the starter and battery wouldn't turn it over that starts to ring alarm bells, how fast is it turning over now with the new battery and starter,A rebuilt engine will be a BIT tighter than a used one but should still turn over fairly rapidly, if not some thing is wrong, possibly tight bearings (crank not ground properly) tight pistons (not bored correctly) even piston rings not gaped correctly can cause this, cam timing is also a contender,  if timing is set correctly to camshaft but not to crank position then it could be firing at bottom dead center with the valves closed, if this happens then the engine will relay struggle to turn over. I have seen all these faults on so called rebuilt engines, not saying that this is the problem as may well have been built to a high standard but never the less things to watch for. So remove king lead and plugs turn engine over, it should turn over quickly, if it doesn't  some thing serious wrong, next check cam timing, turn engine by hand with thumb over number one spark plug hole plugs removed (should feel pressure as piston moves to top) do two full revaluations like this, you should get one pressure cycle, if you don't then cam is defiantly not right, if you do then cam could still be a bit out but should get some sort of firing from engine.   Turn engine by hand again with thumb over number one spark plug hole until you fell pressure, then with something softish like a pencil feel for the piston reaching TDC on this stroke, fit distributor so that the rotor arm is pointing just before the number one contact on the cap (note rotation of rotor arm) you can turn distributor when sat in engine to get this roughly right, fit leads accordingly 1,3,4,2 fit plugs and give it a go.   It should sort of run, will need fine tuning and cam could still be a bit out but will at least give a basic starting point and its always easier  to sort out problems once its running.   If engine is very slow to turn over on key with plugs out talk your re-builder.   of course it could be just a really bad earth on the engine, try earthing it with a jump lead.    Hope this helps and is understandable. easier  to do than explain.        Regards  Derek

Hi Usualy undo and re tourqe induvidualy, i always mark the nut first and then you can see the amount of extra turn you get on the nut you will be supprised. Dere  

Hi Its a single rail box, same shape ect as a spitfire one the only external diference i can see is the bell housing. not too worried about the ratio as the engine should be around the 110hp mark when built and i can adjust using different diff ratio/wheel sizes. Thanks for the posts your knowlage is much appriciated

Hi Its a single rail box, same shape ect as a spitfire one the only external diference i can see is the bell housing. not too worried about the ratio as the engine should be around the 110hp mark when built and i can adjust using different diff ratio/wheel sizes. Thanks for the posts your knowlage is much appriciated