Offshoreonly.com - 540 BBC running poorly

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Quote:

Originally Posted by BUP (Post 4659433)

Low hours ? how old is the boat and the engine ?? is the engine a rebuild currently or within the past year ?? If so whom did rebuilt it ? any invoices on that end ?? No compression test on a used boat ??

A boat that is 4 or more years old and only has 20 hours on it - then it sat around for a long time. Boats are better running than sitting around for years on end. Things deteriorate just sitting there in non use. Fuel systems / gas tanks / fuel lines / fuel cells / gaskets and so on sitting idle for years takes a beating. One is better off that a boat and engine has been ran within reason and one is better off buying a used boat that operated most of its run times at 70 to 75 percent of its duty cycle load. Usually that is around 3600 to 4000 roms for most marine engines

1991 Cigarette Cafe Racer. In 2014 White Performance & Machine built the engines for the previous owner. The owner lived in AL but stored the boat in a dry rack at a marina in Panama City FL, and rarely used it. Service records also show that the port motor had to be torn down in the first few hours of operation due to a problem with a rocker arm, if I recall correctly. New hour meters were installed and now show around 30-32 hours last time I looked. Had 22-23 hours at time of purchase in July.

Oh, and holy ****balls. I just found the service records for when the port motor was pulled in 2016. Apparently at that time the cams were changed for solid lifter cams, and these solid lifter cams WERE A 4-7 SWAP like many people suggested earlier in this thread. I'm posting below.

Quote:

Originally Posted by Baja Rooster (Post 4659431)

Teague even admits that he’s blown up more engines than he can count. Power boats can be a cruel sport.

Is there any recourse with surveyers or seller? At least the current mechanics on task seem competent this far.

R & D chasing power can be catastrophic but eventually pays off. Nothing ventured nothing gained. I remember when I ordered my 28 challenger I ordered it with stock 454/330's. My ol man laughed at me and said I will end up having those engines out and scattered all over the shop in less than a year. Well he was right. They were but fortunately I built some well thought out stout builds that never had issues and gained over 15 mph. My original thought when I ordered boat was to just have little maintenance and no down time. Previous boats, engines were in and out frequently for one reason or another. Morel of the story is WE as offshore boaters always want more and more can be costly and aggravating but in the end it's all worth it.

:boat:

White performance should look into something other than engine builds if all said to be true. Meaning if they 100% known fact they came from there originally. Piston to valve clearance. Wtf. Or were the lifters hydroplaning of the cam lobes from incorrect valve springs. Either way It sucks. They sell a lot on eBay assuming that's the same company. I believe they also have a happy dyno from the numbers I've seen with the components used. Just my opinion.

Regardless keep the info coming.

White did do the original builds in 2014. They looked up the seller's account and found the records, and saw no indication of any 4-7 swap cam, etc. When the port engine had a piston-valve collision in 2016, the decision was made to go with a solid roller cam with a 4-7 swap, and this was information I did not know until about 30 minutes ago when I found the service writeup from 2016.

.006 valve lash on a solid roller or did they use hydraulic lifters on a solid cam

Quote:

Originally Posted by GPM (Post 4659448)

.006 valve lash on a solid roller or did they use hydraulic lifters on a solid cam

No idea.

It doesn't matter now, just something I saw in your previous post.

Boat surveyor or house inspectors, not sure which is more worthless.
I do get a lot of business (weekly) from know nothing house inspectors thou.
This week a HVAC system failed a home inspector test (holding a paper towel against a return vent)

Anyway, never trust a guy named "Bubba"