I have low compression on No2 cylinder.
garrycol wrote:So with the tappets adjusted, power should be back so I decided to do a compression test - last November both cylinders were just over 150psi. This time No 1 cylinder was at 150psi but No 2 cylinder is at 60psi - the engine will run fine on No1 cylinder by itself but will not run on No2 cylinder by itself. So that is the reason I have low power - only one cylinder operating. Spark is all fine.
I ran the engine without the rocker covers on and got exhaust gas out the push rod hole so my guess is there is a broken ring/s in number No cylinder or something like that - or less likely a burnt valve. Blow by also seemed to be pushing exhaust gas and oil out the breather pipe as well.
In theory If I pull the tinwork off I should be able to remove the head and barrel with the engine in place but I am not sure - yes the engine is only held in with 4 bolts but it is all the other stuff that has to be removed that is the pain.
If the engine does have to come out then so does the gearbox as it needs its input shaft bearings done.
So Haffie now gets retired for a year or so so other projects can proceed.
Garry
Ok - got the the inlet manifold and exhaust off - pushrods out and head bolts off - heads will not come off with the engine is in place as the body work is in the way - it would have been nice if the tappet access hole was larger but it isn't.garrycol wrote:Yes - but if I go to the extra effort of taking the engine out, then the gearbox has to come out and then I will have to find someone to rebuild it.kerry460 wrote:personally i would not even bother to try it in place
kerry
So the engine needs to come out - on first look there is nothing obvious yet as to why the compression is low.
More to come
Garry