Recent content by hmccoy99

I have leaky helm pumps i need to rebuild any advice? model numbers? henry

Hi All I have water jacketed exhaust monel or ss riser with a spray heat emptying into rubber hose on a detroit 8-71 ti. its too hot. I think crystallized salt has plugged up the spray heat. its a bugger to get off and back on. is there some solvent that will dissolve salt. I know water...

Hello All, I have had my Hatteras 58 yf about two years now still learning the boat but I havent figured out what the electrical switch on the left side of the top of the circular stairs going down to the galley. can anyone help me out identifying this switch? Henry 1977 58 yf

any information on the air horns plumbing on a hat 58yf. where the original compressor location? locations of the electric air valve. nominal pressure? etc.. henry mccoy

hello all I have hatters 58yf, and i am not getting any water to my ice maker. can someone tell me where the valve to the water supply is for the ice maker? thanks henry

Hello Gentlemen I am installing a autopilot on my hat 58yf and have a few questions. 1. what size hydrolic pump 15cc or 30cc 2. what is the max sea state a auto pilot can handle with a hat 58yf 3. what systems work best acceleratorometer type or flux gate 4. what is the best boat speed...

I want to convert M20 allison transmission oil filter to spinon type what filters work best in that application? henry

Hi got a question about the fuel pressure more specifically the orifice location in the fuel return. and what is the correct size. i see in the detroit service manual they can be .055 to .080 would like to examine what i have. i just replaced the fuel pressure pump at idle i have...

Hello all I have a problem with the lift pump in one of my engines can anyone help me with the procedure to replace the pump? Does it require special tools ? Thanks Henry

I have a 58yf that uses a flux gate compass looking for the best position for the compass location. the installationmanual says select a position in the front 2/3 of the boat near the water line. i get a error there its too near the onan 15kw generator.. does anyone have a autopilot with a...

Hi all has anyone installed a under water exhaust system on a 58yf henry

Hi Can anyone give me a good idea what is interchangeable from a marine 8-71 tti to a 8-92 natural more specifically Heads? exhaust manifolds? blower? cams? timing case? flywheel? cooling system? etc.... I am looking at the possibility of removing the 8-71tti from my 58yf if they give...

Hi all I need a fuel priming pump for my 58yf with 8-71ti the is a flow thru design I can use only when changing filters I have dirty tanks and will be going through a lot of filters for a while. any recommendations? I would like to plumb inline permanently. Henry

The boat i bought has been setting for a number of years. I have just got the engines running and the starboard transmission has zero oil pressure. any ideas? sucking air on the pump inlet side? bad seal in the pump? is seems the pump will not prime. henry

can any one help me with the layout of the tanks on a hatteras 58yf ? the placement and size. and the valve ing of the supply and return lines I have dirty fuel with a lot of algae growth I have to clean and polish. and the best products to kill the algae henry