skiss
Regular Contributor
"History first... Both engines
"History first... Both engines rebuilt by exp diesel full service truck shop. Now have 12 hours running time, Only 3 hours total at mid speed breakin rpm. Top speed only for 30 seconds on infrequent occassion. Everything done.. except existing liners were well crosshatched so only new penta rings fitted to existing pistons.This was recommended to reduce break in time.
One engine is perfect...4100 rpm under load with A4 props. Problem starboard engine 3900 rpm. No leaks anywhere except at breather cannister. After engine leaked and bilge filled with oil, thought engine might be overfilled. Reset oil level and new filter again leaked but less oil this time. I think now oil might be leaking from canister metal seam near base (defective filter? or should oil not reach this point?) Both engines have new everything oil senders etc and run on spec with temp and oil pressure. Run on plane easily at 3200 rpm, but problem arises I think at 3600 rpm. Am I running the engines too hard? Exhaust elbows just warm to the touch. (Volvo dash sticker says cruise speed should be 200 rpm below max rpm.) (Both tachs are new and checked)
Both engines smoke at cold startup alot, but become reasonable within 5 minutes of very easy starting.
Is this normal? Read everything on this site, so cutting to the chase whats my next step?
Cold Compression tests? Tell Volvo the new filter is defective and replace again? Modify engines with P version breather setup? A penta dealer says Maybe run a hose to ouside if everything else fails. Does the engine need more break in time? Thank you in advance."
"History first... Both engines rebuilt by exp diesel full service truck shop. Now have 12 hours running time, Only 3 hours total at mid speed breakin rpm. Top speed only for 30 seconds on infrequent occassion. Everything done.. except existing liners were well crosshatched so only new penta rings fitted to existing pistons.This was recommended to reduce break in time.
One engine is perfect...4100 rpm under load with A4 props. Problem starboard engine 3900 rpm. No leaks anywhere except at breather cannister. After engine leaked and bilge filled with oil, thought engine might be overfilled. Reset oil level and new filter again leaked but less oil this time. I think now oil might be leaking from canister metal seam near base (defective filter? or should oil not reach this point?) Both engines have new everything oil senders etc and run on spec with temp and oil pressure. Run on plane easily at 3200 rpm, but problem arises I think at 3600 rpm. Am I running the engines too hard? Exhaust elbows just warm to the touch. (Volvo dash sticker says cruise speed should be 200 rpm below max rpm.) (Both tachs are new and checked)
Both engines smoke at cold startup alot, but become reasonable within 5 minutes of very easy starting.
Is this normal? Read everything on this site, so cutting to the chase whats my next step?
Cold Compression tests? Tell Volvo the new filter is defective and replace again? Modify engines with P version breather setup? A penta dealer says Maybe run a hose to ouside if everything else fails. Does the engine need more break in time? Thank you in advance."