As stated my 1776 has been down on power for some time, even to the point I was wondering if it really is a 1776.
Took the engine out and carried out a "leak down" test, all 4 cylinders are showing about 20% leakage, but as I was testing I noticed that if I put my rubber gloved hand on the barrel the glove would start to fill with air. So checked the heads and some of the bolts on both sides were not torqued down.
Off with the heads and checked the stroke and bore (69 x 90.5) so at least I know I have a 1776. Can't see any cracks but they need a full clean yet.
I also have low oil pressure at low revs when the engine is hot, so my dilemma now is do I strip it down fully to check bearing etc?
The heads are standard valve sizes, so also contemplating going for 40 x 35.5 heads.
Took the engine out and carried out a "leak down" test, all 4 cylinders are showing about 20% leakage, but as I was testing I noticed that if I put my rubber gloved hand on the barrel the glove would start to fill with air. So checked the heads and some of the bolts on both sides were not torqued down.
Off with the heads and checked the stroke and bore (69 x 90.5) so at least I know I have a 1776. Can't see any cracks but they need a full clean yet.
I also have low oil pressure at low revs when the engine is hot, so my dilemma now is do I strip it down fully to check bearing etc?
The heads are standard valve sizes, so also contemplating going for 40 x 35.5 heads.