Logo
FULL SITE MENU

BF 130 problem/re-power

H

hdean

Member
Powering a Bayliner Trophy 2509 with BF130's. One has a slight tappet noise at idle, probably would not know this if I did not have an other next to it. I think hear the noise at higher R.P.M's, but hard to tell for sure over the engine noise. Runs strong, burns no oil, and will idle for hours trolling at 1000 rpm or just under. Compression is in the mid 115- 140's. Should I just run them, or is there something I should consider that's simple? I bought the package used, so I do not know the engine(s) history. An other ? for you Honda guys, is IF I do a re-power, should I go with 135's, TUNE up to 150's, (both the same size and weight as the 130's) or go with a single BF225? Lots to factor in..... GPH, cost, weight, ect. The 130's seemed to be not enough, but I went down in Pitch, now they seem to be in the ball park. I don't think they are truely 130 h.p., more like 115's?? If a 225 is the way to go, I wonder if it's enough H.P., and I may need a trolling motor to boot??
 
Does the compression vary by 35 lbs? That is not good. Compression should be 199 to 228 psi with the throttle wide open. You should check compression again.

The first thing to check for the noise would be valve clearances. Sometimes, the nuts come loose if not tightened properly, and will cause a clatter.

If you are not mechanically inclined, I would have it checked out. Something simple can turn into something really bad.

Things to think about for repowering...

2 - 135's, although only 10 more HP will give you more get up and go just by being lighter in weight. Two - 150's would really do it, if your boat is rated for it.

As I remember the steering cylinders going from the 130's to the 150's or 225. They look very much the same, but there is a small difference. The 130's take a teleflex HC5347. All the others take an HC5345.

As for the 130's only being 115...make sure the throttle lever on the engines go all the way to the stop.

I am sure there will be others providing comparisons for twins vs one engine.

Mike
 
If you are fishing offshore, you probably want to go with twin engines because of the redundancy. I fish offshore in a C Hawk 25 with a single Honda 225. But I'm always a bit nervous about it. Fortunately, I'm usually near other boats if I ever have an engine failure.

On your Trophy 25, do you have a deep V or modified V? If a deep V, I would suspect that a 225 would feel a bit sluggish.
 
I think it's a deep v? has a lot of chine, but does flatten out aft of helm. With the 130's, full fuel (148 gallons) both engins weigh in at about 485 each, 3 guys, camping gear, groceries, 3 big ice chests full of ice, ect. she sits in the water pretty good. I do also like the idea of twins for off shore fishing. I went down in pitch, and can now get up on step. The 135's and 150's weigh in at the same. I guess a 150 is just a high tuned 135?, but will the extra HP. take away the longivity of the motor?
 
I can't help you much on the comparison between the 135 and the 150. The 150's seem very popular. The best guideline I have ever heard in many years of boating is to always try to power a boat near the maximum of it's power rating. That will be on the ID plate on the hull.

Of course, the other consideration is the weight at the transom. The BF 225 is about 625 lbs. Two 150's or 135's are going to be nearly a 1,000 lbs. And I think your twin 130's are also over 1,000 lbs. You might want to ask other owners of your type boat about their engine set up and handling characteristics. I suspect that Trophy will feel a bit different with 400 lbs less on the transom. But, if you are satisfied with your current handling characteristics, then stay with a twin pack.

Just for comparison sake, my C Hawk 25 modified V with a BF 225, which weights just under 6,000 lbs fully loaded, will make 40 mph at 6000 rpm with a burn rate of 20 gallons per hour. At 5000 rpm she does 30 mph with a burn rate of 15 gal/hr. The sweet spot is 4200 - 4400 rpm which drops the burn rate to 8.3 to 10.0 gal/hr.
 
Back
Top