Area Representative Nico506 Posted May 11, 2023 Area Representative Share Posted May 11, 2023 Hi AllI am hard of hearing and struggling to diagnose the following problem certainty.I have a 1600 Xflow circa 6000 miles and only 800 miles since purchase last may , following coolant issues that includes overheating and loss of coolant , head gasket changed and at the moment engine running sweet as a sewing machine, no blue or white smoke from exhaust , compressions all at 180 PSI , oil consumption ok , starts and runs fine and goes super quick, timing at 10 degTappets have been adjusted and am told they give a quiet chatterSince replacing the head gasket a muted non metallic tapping noise is heard in area of cylinders 2& 3 - some say this is bottom end bearings ( little ends) - but how can this be when i only changed the head gasket ?I have had comments such as the head gasket may be misplaced or wrong size to bores causing the pistons to hit the edges of the gasket making the tapping noise as it increases/decreases with revs .Any thoughts and experiences as don't really want to pull the engine out unless absolutely sure its bottom end.Thanks in advance all Link to comment Share on other sites More sharing options...
Ivaan Posted May 11, 2023 Share Posted May 11, 2023 Exhaust manifold to head bolts all tight? Gasket okay? Link to comment Share on other sites More sharing options...
Tom_Arundel Posted May 12, 2023 Share Posted May 12, 2023 Does the tapping change between cold and hot engine? Is tapping the same as you rev it up? Is it a tap or a clunk? Link to comment Share on other sites More sharing options...
Roger King Posted May 13, 2023 Share Posted May 13, 2023 Is the new head gasket the same thickness as the old one? If it's thinner, it's possible that the pistons are hitting the head or the valves are hitting the pistons. Link to comment Share on other sites More sharing options...
Area Representative Nico506 Posted May 18, 2023 Author Area Representative Share Posted May 18, 2023 UPDATE - Thanks everyone for help and replies and retracing the work i have done on the engine , it seems that when the sump was removed to have the sump reduced in depth to clear speed humps, it appears that the oil pipe pipe is being 'kissed ' on rotation by the con rod bolt very slightly and just needs easing gently out of position. The rest of the engine has been checked top and bottom and sounds fine with no other knocks or taps . Im taking the sump off this week and will update all on findings. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now