packard 1936 standard 8 1402 engine problems
Posted by Dave On 2014/4/2 23:47:21
hi there don't know if any one can shed some light on this,
I bought this car in bits engine etc, I have had crank reground new big ends and main bearings new valves and valve guides etc.
the problem that I have is no6 valves seizing and damaged the valves and guides, it seems to fine on the other cylinders, it seems to have a lack of oil getting to no6 valves <I have good oil pressure>.the con rods have a hole to lubricate the upper cylinder and piston, this hole I have put the same side as the valves, the cylinder has a hole which is not blocked, Im not sure but I think the valves are lubricated via the spray from the cylinder or the throw from the camshaft, the pistons have a slot on one side which I also put the same side as the valves.
I had a look on here to see if there was and engine assembly manual to check this out and could not find anything,
I took the car out for its first run and done 30 miles engine ran fine until I was sitting at lights and the car made a large tapping noise then cleared I thought it may have a tight valve guide but on inspection I found metal filings around the valve, I grabbed hole of the valve and it has a lot of movement,
I am taking the head off tomorrow to have a look I have guides and spares valves but need to find the reason why if any one can shed some light on this I would appricate it
many thanks Dave
I have added some photos of the car before and after I have had the car since July 2013 last year and spent the last 9 months restoring it
Attach file:
(72.47 KB)
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I bought this car in bits engine etc, I have had crank reground new big ends and main bearings new valves and valve guides etc.
the problem that I have is no6 valves seizing and damaged the valves and guides, it seems to fine on the other cylinders, it seems to have a lack of oil getting to no6 valves <I have good oil pressure>.the con rods have a hole to lubricate the upper cylinder and piston, this hole I have put the same side as the valves, the cylinder has a hole which is not blocked, Im not sure but I think the valves are lubricated via the spray from the cylinder or the throw from the camshaft, the pistons have a slot on one side which I also put the same side as the valves.
I had a look on here to see if there was and engine assembly manual to check this out and could not find anything,
I took the car out for its first run and done 30 miles engine ran fine until I was sitting at lights and the car made a large tapping noise then cleared I thought it may have a tight valve guide but on inspection I found metal filings around the valve, I grabbed hole of the valve and it has a lot of movement,
I am taking the head off tomorrow to have a look I have guides and spares valves but need to find the reason why if any one can shed some light on this I would appricate it
many thanks Dave
I have added some photos of the car before and after I have had the car since July 2013 last year and spent the last 9 months restoring it
Attach file:
(72.47 KB)
(9.20 KB)This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=142038