H2Oski
New Member
- Aug 5, 2017
- 6
- Boat Info
- 1998 Sea Ray 210 Signature Bow Rider
- Engines
- 8 cylinder Mercruiser fuel injected ~ I should know more, but I don't :(
Help! I have owned a 1998 Sea Ray 210 Signature Open Bow for about 10 years. Purchased it with 40 hours on it and it now has approximately 600 hours.
A couple of years ago it started backfiring periodically under load. The problem has become increasingly worse and is now a problem every time we take the boat out.
There is definately a connection between the tachometer and the backfiring. Under load, the tach begins jumping/bouncing around sporadically, jumping up to 5000 or 6000 rpms; however, the engine does not surge. Then the backfiring, sputtering and popping starts right after the tach begins jumping. It's extremely frustrating when trying to pull a skier up and the boat is jerking and losing power as it backfires. Once up to speed, the ride is usually normal and uneventful, until making a turn with a skier or something else that puts it under load.
We've had a lot of repairs made and tests performed that the mechanic thought would resolve the problem, but it's still as bad as ever.
The repairs made and tests performed include:
· Tach replaced
· New wires from tach to engine
· New distributor and distributor cap
· New spark plugs
· New fuel pump
· New coil
· New fuel filter
· Compression test (normal)
· Valve test (normal)
Here is a short video that shows the tach jumping. Although it's hard to hear on the video, there is backfiring and popping.
Any help/suggestions are very much appreciated!
A couple of years ago it started backfiring periodically under load. The problem has become increasingly worse and is now a problem every time we take the boat out.
There is definately a connection between the tachometer and the backfiring. Under load, the tach begins jumping/bouncing around sporadically, jumping up to 5000 or 6000 rpms; however, the engine does not surge. Then the backfiring, sputtering and popping starts right after the tach begins jumping. It's extremely frustrating when trying to pull a skier up and the boat is jerking and losing power as it backfires. Once up to speed, the ride is usually normal and uneventful, until making a turn with a skier or something else that puts it under load.
We've had a lot of repairs made and tests performed that the mechanic thought would resolve the problem, but it's still as bad as ever.
The repairs made and tests performed include:
· Tach replaced
· New wires from tach to engine
· New distributor and distributor cap
· New spark plugs
· New fuel pump
· New coil
· New fuel filter
· Compression test (normal)
· Valve test (normal)
Here is a short video that shows the tach jumping. Although it's hard to hear on the video, there is backfiring and popping.
Any help/suggestions are very much appreciated!
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