RichardS;5825750. My "professional" opinion ...... the engine designer for this engine was clearly having a bad day and came up with a pile of do-do! :D Richard[/QUOTE said:
Possibly ... but Tranona mentioned above that this engine was originally designed for the "British Leyland engine for the Montego and Maestro" ..... and in that short sentence referenced two of the worst cars ever built in the UK. I don't know whether the same engine was used in the Allegro but if it was that's then a complete roll call of the death of the BL.
Richard
Or indeed 47 feet
Possibly ... but Tranona mentioned above that this engine was originally designed for the "British Leyland engine for the Montego and Maestro" ..... and in that short sentence referenced two of the worst cars ever built in the UK. I don't know whether the same engine was used in the Allegro but if it was that's then a complete roll call of the death of the BL.
Richard
It is a bucket and shim head!It sounds pretty much like a normal push rod/tappet engine to me, even though it's a sewing machine. Probably too large clearances but the only way to eliminate the tappety sound is to install a bucket and shim head.
Richard
The engine is one if the most bullet proof ones ever made by BL/ Perkins. Only 17:1 compression ratio using direct injection also to the surprise of the engineers they got superb fuel economy. The engines were desired by Landy owners and were seen as a positive change both for the mpg and the torque. There were various changes along the way with turbo and slight compression ratio changes. The original question, sewing machine noise? Either tappets OR cam belt components! The engine I overhauled was within spec even though it came from a rusted old Maestro Turbo. As explained I used some flat bar and studs to hold the cam down whilst I checked the clearances. I had the advantage of having the head off when I did it. To do it in situ is a challenge, to get the cam holders on you have to take the cam cover off which is what holds the cam in place and so as you undo the bolts the valve springs push the cam out of place. There is a special tool that I think holds the cam sprocket and back of the cam where the water pump drive is, in place. A workaround is to put the cam timing pins in place, slack the cam belt, accept the cam moving and then clamp it back in place with the flat bars. Then check the valve clearances. If they are really out then I would take the head off, in fact if they are really wide then there is something seriously worn, as in cam bearings or cam shaft.Possibly ... but Tranona mentioned above that this engine was originally designed for the "British Leyland engine for the Montego and Maestro" ..... and in that short sentence referenced two of the worst cars ever built in the UK. I don't know whether the same engine was used in the Allegro but if it was that's then a complete roll call of the death of the BL.
Richard
This was the engine that nearly saved BL! It was far ahead of its time with superb economy and useable power. Do some googling! Mine is 17 years old, done lots if hours, starts first time, using 1/2 litre of oil in a season of 100ish hours. And the beauty is that spares are still available from www.parts4engines.com fir reasonable prices. If the OP cam is sha gged then a scrappy will be a goid place to source a head.Possibly ... but Tranona mentioned above that this engine was originally designed for the "British Leyland engine for the Montego and Maestro" ..... and in that short sentence referenced two of the worst cars ever built in the UK. I don't know whether the same engine was used in the Allegro but if it was that's then a complete roll call of the death of the BL.
Richard
