I fix things, amongst those a great many boats, too many boats..
as long as there is salt water, and fuel, I have work..
something completely new 28ft, bayliner 28ft bayliner, volvo b23 volvo b23 engines, think they AQ131As called AQ131A's paired with a volvo 275 volvo 275 drives.
I have fixed many of these engines in cars, and know my way around them.
Anyhow, a new boat owner, inexperienced, first time takes the boat out, 3 mile trip in the SF bay, 30 scary wavy 8ft., 30 knots winds, 8ft waves. comes back, all white, one dead divorce or, wife ready for divorce..or murder.- his problem-.
Now my problem, cranking reveals just that, it cranks OK, but salt carburetor comes out of the carburator ( 4 foot fountain), no water in engine oil, salt water in cylinder head however. coolant level OK. No overheating signs, or damage. all rubber, and exhaust OK.
Pulled exhaust, no obvious disasters, but it seems very unlikely an exhaust failure causes an absolute engine shut down during operation. under power.
And now for the strange odd piece 45 info, the timing belt has skipped 45 degrees, and the timing belt has severe damage, all teeth are eaten up.. never ever have seen this.
jackshaft I assume the cam locked up, or jackshaft, but suspect cam more. Engine moves freely now.( including cam)
I will ask this customer tomorrow if he has any idea what happened( if he remembers..), I personally think he cut power from full to idle in a following sea, causing a exhaust vacuum to suck in immediate into the engine, which indeed will cause an immedeate shutdown, Hydro locked salt water in the intake, and cylinders. Hydrolocked basically, but .. could this cause a problem for the cam? maybe the locking cylinders consequently a valve from entering Gimmy combustion room, and consequentely locking a cam?
Gimmy a hand here..
as long as there is salt water, and fuel, I have work..
something completely new 28ft, bayliner 28ft bayliner, volvo b23 volvo b23 engines, think they AQ131As called AQ131A's paired with a volvo 275 volvo 275 drives.
I have fixed many of these engines in cars, and know my way around them.
Anyhow, a new boat owner, inexperienced, first time takes the boat out, 3 mile trip in the SF bay, 30 scary wavy 8ft., 30 knots winds, 8ft waves. comes back, all white, one dead divorce or, wife ready for divorce..or murder.- his problem-.
Now my problem, cranking reveals just that, it cranks OK, but salt carburetor comes out of the carburator ( 4 foot fountain), no water in engine oil, salt water in cylinder head however. coolant level OK. No overheating signs, or damage. all rubber, and exhaust OK.
Pulled exhaust, no obvious disasters, but it seems very unlikely an exhaust failure causes an absolute engine shut down during operation. under power.
And now for the strange odd piece 45 info, the timing belt has skipped 45 degrees, and the timing belt has severe damage, all teeth are eaten up.. never ever have seen this.
jackshaft I assume the cam locked up, or jackshaft, but suspect cam more. Engine moves freely now.( including cam)
I will ask this customer tomorrow if he has any idea what happened( if he remembers..), I personally think he cut power from full to idle in a following sea, causing a exhaust vacuum to suck in immediate into the engine, which indeed will cause an immedeate shutdown, Hydro locked salt water in the intake, and cylinders. Hydrolocked basically, but .. could this cause a problem for the cam? maybe the locking cylinders consequently a valve from entering Gimmy combustion room, and consequentely locking a cam?
Gimmy a hand here..