Relentless85
New member
Hello, I am new to boating and boat engines. However, I am mechanically inclined when it comes to vehicle engines. My family and I are looking into purchasing a boat and what I describe below is happening.
My friend has a 2001 Glastron GX 205 with the Volvo Penta 5.0 GL engine. The hour meter showed 182 hours. My friend took the boat out on the lake and drove it around for a few hours. They turned the engine off and sat for a bit. When they tried to restart the engine, it would not turn over. Said sounded like the belts would squeal. My friend was told the engine sized. I talked to the mechanic who told my friend this. The mechanic told me he tried standing on the prop to get the engine to manually turn over and it would not. The mechanic said he checked the starter and said it was ok. The mechanic pulled the spark plugs and ran a scope down and he said he saw some corrosion inside.
I went to look at the engine and I pulled the oil cap and saw chocolate milk around the cap. I pulled the dipstick and there was less chocolate milk but the oil was more “runny” than usual. I didn’t try to turn the engine over with the starter because the mechanic didn’t put the spark plugs back in and disconnected the power to the starter.
The mechanic said that somehow the engine ingested water and hydro locked the engine. He gave my friend the option of replacing with a used engine or replacing with a new block.
My friend is offering to sell the boat to me. I have been looking at new blocks with heads.
The mechanic said he could replace the engine with a new block from Jasper engines for around 12k.
I have heard and read horror stories about Jasper engines in the automotive world. What are good other places that I can personally buy a block from? I have seen Michigan motors and S&J engines. Does anyone have good experiences with these places? I am looking into doing the work myself.
Any pros or cons for replacing an engine in this old of a boat? The interior is in good condition and the boat was in a storage unit when not in use.
My friend has a 2001 Glastron GX 205 with the Volvo Penta 5.0 GL engine. The hour meter showed 182 hours. My friend took the boat out on the lake and drove it around for a few hours. They turned the engine off and sat for a bit. When they tried to restart the engine, it would not turn over. Said sounded like the belts would squeal. My friend was told the engine sized. I talked to the mechanic who told my friend this. The mechanic told me he tried standing on the prop to get the engine to manually turn over and it would not. The mechanic said he checked the starter and said it was ok. The mechanic pulled the spark plugs and ran a scope down and he said he saw some corrosion inside.
I went to look at the engine and I pulled the oil cap and saw chocolate milk around the cap. I pulled the dipstick and there was less chocolate milk but the oil was more “runny” than usual. I didn’t try to turn the engine over with the starter because the mechanic didn’t put the spark plugs back in and disconnected the power to the starter.
The mechanic said that somehow the engine ingested water and hydro locked the engine. He gave my friend the option of replacing with a used engine or replacing with a new block.
My friend is offering to sell the boat to me. I have been looking at new blocks with heads.
The mechanic said he could replace the engine with a new block from Jasper engines for around 12k.
I have heard and read horror stories about Jasper engines in the automotive world. What are good other places that I can personally buy a block from? I have seen Michigan motors and S&J engines. Does anyone have good experiences with these places? I am looking into doing the work myself.
Any pros or cons for replacing an engine in this old of a boat? The interior is in good condition and the boat was in a storage unit when not in use.

