Stolentricycle
Cadet
- Joined
- Dec 5, 2017
- Messages
- 6
Hello, I have a 1996 Volvo Penta 302 5.0 FL (carbureted) and I believe OMC partnered up to build the motor. My outdrive is a Volvo Penta SX. I can get serial number upon request. The motor has about 350 hours on it and it runs wonderfully. My motor runs at roughly 175-190 Fahrenheit whenever at the lake or on the muffs. Recently I ran my boat on the muffs and I am hearing a ticking sound which I believe is coming from the the left/stern area of the motor (spark plugs 1-4). My fuel is fresh 91, spark plugs are brand new (OEM Volvo plugs) and gapped correctly with a brand new distributor and cap (OEM Volvo Distributor and cap), fresh oil change with Mobil 1 full synthetic 5w-30 and wix oil filter , brand new impeller (OEM Volvo Impeller) and new fuel filter. The motor has never been opened nor have the intake manifolds or risers been replaced which makes these items on the motor 21+ years old. I recently did a compression test with all of the plugs removed and my numbers are as fallow Cylinder #1 (127 Cold/PSI -- 127 Hot/PSI) Cylinder #2 (125 Cold/PSI -- 125 Hot/PSI) Cylinder #3 (139 Cold/PSI -- 145 Hot/PSI) Cylinder #4 (135 Cold/PSI -- 139 Hot/PSI) Cylinder #5 (125 Cold/PSI -- 130 Hot/PSI) Cylinder #6 (119 Cold/PSI -- 119 Hot/PSI) Cylinder #7 (135 Cold/PSI -- 140 Hot/PSI) Cylinder #8 (140 Cold/PSI -- 141 Hot/PSI). I was curious if it was worth doing a leak down test and or adding a little oil into each piston then doing another compression reading. Other than that I'm not sure what to do, I've had an authorized Volvo Penta shop tell me the motor is done and needs to be rebuilt, he also mentioned most machine shops will not touch an engine that has eternal water cooling next to the pistons? Any suggestions are gratefully appreciated.
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