Fuel Burn

smanni · Post by **smanni** » Thu Jun 14, 2007 10:22 am

Last weekend I burnt a lot of fuel compared to the prior 3 weeks and the prior 3 years. No major changes in weight or anything else and the week before I fished the same exact spot so the run was the same, but I burnt 30 more gallons, in only 4 hours. I have been all over boatdiesel but havent seen anything that would cause this. Any ideas - anyone else with the cat 3208 275hp ever have this happen. According to my records, this happened to me one time last year also - then just went away. Also- just in case it comes up - I fill up after every trip and I am absolutely sure the tank was equally full before each trip - so, unless someone stole fuel out of my tank (highly unlikely at my marina) I'm stumped.

richcatch22 · Post by **richcatch22** » Thu Jun 14, 2007 3:26 pm

Was it rougher than usual, pounding thru or climbing back of steep waves? Capt Rich Catch 22 1989 33 FBC

BECCA ROSE · Post by **BECCA ROSE** » Thu Jun 14, 2007 6:46 pm

Wind, current, seas????? Bill 1988 33 FBC Ipswich, Ma. > ~------- [img]http://www.bertram33.com/photogallery/p ... a_Rose.jpg[/img]

smanni · Post by **smanni** » Thu Jun 14, 2007 7:09 pm

it was pretty much the same as prior week. Maybe a little rougher - but nothing significant

sbeer · Post by **sbeer** » Fri Jun 15, 2007 7:07 am

Did you notice any more soot on the transom than normal

smanni · Post by **smanni** » Fri Jun 15, 2007 8:00 am

a little more than normal - not a ton, but definately more than usual.

sbeer · Post by **sbeer** » Fri Jun 15, 2007 10:45 am

That could be an indication of the motors being alittle overloaded. They are dumping more fuel than they can burn. Climbing those walls of water, the cats keep dumping fuel to maintain speed, hence your useing more fuel but not getting there any faster. I've had the same issue with mine. Mike

photo finish · Post by **photo finish** » Sat Jun 16, 2007 8:10 am

Is the bottom clean...Any loss off RPM

smanni · Post by **smanni** » Sat Jun 16, 2007 2:49 pm

Bottom clean - Rpm loss at top end of 200. I was hitting 2850 - now just over 2600

sbeer · Post by **sbeer** » Mon Jun 18, 2007 4:02 am

Manni, You need to get that looked at. 200 off of wot under load is not good. Do you notice any smoke trail. What have you done to the boat that has changed from last year. You should be getting 3050 rpm wot at the dock. What are you getting there? Mike

smanni · Post by **smanni** » Mon Jun 18, 2007 5:22 am

At the dock - 3050 easy. no smoke. Nothing different this year on the boat. I changed the air filters this weekend, but didnt run the boat - we ran a friends boat instead. I'm hoping the filters wil help, they were pretty bad. I will post next week.

sbeer · Post by **sbeer** » Mon Jun 18, 2007 6:18 am

The filter might give you some but , depending on how bad they are, maybe not all of it. The bad filters could be why you were getting more soot than normal, but to be off by 200 rpm, I personally would get it looked at. Something ain't right. Mike

smanni · Post by **smanni** » Mon Jun 18, 2007 7:20 am

Mike - how did you do in the tournament last weekend?

sbeer · Post by **sbeer** » Mon Jun 18, 2007 8:23 am

Manni' I was'nt in that tournament. I am, how ever, in the jcsa and mako mania this coming weekend. The weekend is looking good and from what I can see on the temp charts, I won't have to go far. Most of the good water is with-in 45 miles. I'll keep you posted as how I did next week. Mikequote:Originally posted by smanni Mike - how did you do in the tournament last weekend?

smanni · Post by **smanni** » Mon Jun 18, 2007 8:26 am

GOOD LUCK - we are in the Cape May Shark Tournament this week and we're looking at about a 40-50 mile run.