Hi Guys,
I'm new to this forum and have a few questions!
First of all let me say what I have,
Currently i own 2 Glastron ssv-151s - 1 is the standard mass produced metallic rust one from the Us - the other a much rarer blue one built here in the uk.
The blue one has a 90hp 6cylinder merc brown band (84 i think) tower of power
The orange one has an 80hp 4 cylinder grey band - last of the 4cylinder 80s. (10 and 15 inch prop one for lake one for river)
I also have a 50hp 4cylinder blueband merc as well 1980.
Right so this is what i'm trying to do - i live on a river. Most sections are between 4-7mph and most people only have 25hp 4strokes on my stretch. However go a bit further and you can open it up hence why i want the power.
I will be doing the 4-7mph about 65% of the time and flat out 35% of the time.
I am trying to work out which of my ob's is going to be the best for economy when going 4-7mph as that will be on my everyday boat (assuming its the 50 or the 80 as they are both 4cyls but thinking the 80 would have less load maybe?)
Next question is about the obs themselves as the 80 and 90 have a couple of problems.
Starting easily with the 80 - she misses when shes cold and below 2000rpm - plugs and compression seem good. Over 2000rpm shes as smooth as glass all the way... any ideas?
Now my big headache, the 90... so she is about 10x harder to start than the 80, she idles like a bag of nails, when you bring her down from speed to idle she just dies and she has a misfire. I have done the compression test all 6 are good i took the plugs out and cylinders 1,2,4,5,6 lookas expected but cylinder 3 is wet with water - does this sound like headgasket/water jacket and is this likely my problem?
Ok end of questions and thanks in advance!
I'm new to this forum and have a few questions!
First of all let me say what I have,
Currently i own 2 Glastron ssv-151s - 1 is the standard mass produced metallic rust one from the Us - the other a much rarer blue one built here in the uk.
The blue one has a 90hp 6cylinder merc brown band (84 i think) tower of power
The orange one has an 80hp 4 cylinder grey band - last of the 4cylinder 80s. (10 and 15 inch prop one for lake one for river)
I also have a 50hp 4cylinder blueband merc as well 1980.
Right so this is what i'm trying to do - i live on a river. Most sections are between 4-7mph and most people only have 25hp 4strokes on my stretch. However go a bit further and you can open it up hence why i want the power.
I will be doing the 4-7mph about 65% of the time and flat out 35% of the time.
I am trying to work out which of my ob's is going to be the best for economy when going 4-7mph as that will be on my everyday boat (assuming its the 50 or the 80 as they are both 4cyls but thinking the 80 would have less load maybe?)
Next question is about the obs themselves as the 80 and 90 have a couple of problems.
Starting easily with the 80 - she misses when shes cold and below 2000rpm - plugs and compression seem good. Over 2000rpm shes as smooth as glass all the way... any ideas?
Now my big headache, the 90... so she is about 10x harder to start than the 80, she idles like a bag of nails, when you bring her down from speed to idle she just dies and she has a misfire. I have done the compression test all 6 are good i took the plugs out and cylinders 1,2,4,5,6 lookas expected but cylinder 3 is wet with water - does this sound like headgasket/water jacket and is this likely my problem?
Ok end of questions and thanks in advance!