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Hello I'm stumped!!! On my 1999 340 with twin 7.4 there is a warning system that triggers if either high water temp low oil pressure or high trans temp. The sending unit for the high temp is mounted on the top of the engine..... This switch or sending unit is bad ...... It is threaded into the...

hey guys..... trying to find the location of the water temp sensor on 1999 7.4 raw water cooled there are 2 sensors on the engine 1 I know is on the thermostat housing the other is on the block ????? any help would be appreciated Thank you Scott

I have found the high temp alarm sensor on the thermostat housing (thank you all for your help) now a can't seem to find the part number for it in hte mercury service/part book (1999 7.4 raw water cooled) againg looking for the high temp sensor mounted in the thermostat housing any help would be...

Hey heres a quick question i have a 1999 340 twin 7.4 raw water cooled the port engine the over heat alarm goes off even though the temp gauge reads 170. i have checked engine with heat gauge and no part of engine is over 165 degrees. i assume the sending unit for the alarm is bad i also assume...

i have seeen this done both ways towed with motor in the water and with motor out of the water... which way is right????

hope this is the right spot for this question. i have an 07 2.5 mercury 4 stroke outboard. always dealer maintained,and well cared for. i filled the gas tank before using it this weekend.. what happens is this...it will run for 2-3 min with no problem throughout the full range of the throttle...

i an having 2 oil issues on my starboard engine....i am sure that they are somehow related. but i am not smart enought to figure out how. issue 1, i lose approx 1 quart of oil for every hour that i run above 3200 rpm. however there is no oil that i can find leaking from the engine.....the bilge...

quick question for you>>>> i am replaceing all of my intierior bulbs with led bulbs. should i use warm or cool??? which are brighter (better to read by)??? any input welcome thanks scott

las tyear befor i bought this boat on the advise of many CSR members i had the dealer replace the entire exhaust system. (manafolds,elbows risers , and mufflers) so hear is the question. temp gauge reads 170-180 and always has.....but when i touch elbows or risers they are warm to the...

so i spent a few hours yesterday cleaning the bilge in the process i tryed to find the limber holes on the outboard stringers......(the stringers that the outboard side of the engine mounts to, the space to be drained is the void space where the raw water intake sea cocks are) i tryed to locate...

does anyone know the oem for the bilge vent covers on a 1999 340 da they are round and approx 4" in diameter. sea ray part # 791749.... looked around at local vendors and on the wed without much luck many thanks scott

can someone help me with the part number for the serpintine belt. i drove down to the boat without my glasses and cannot read the number..........thanks in advance

Just moved up from a 290 to a 2000 340 DA. Picked it up this weekend. I have a few questions. 1. where does the cockpit wet bar sink drain to>>>it is running slow there is no thru hull for it. does it tie into the head vanity??? 2. the oil pressure gauge for the starboard engine worked fine...

here is a random question....my boat is wrapped and a was wondering if any of you know the answer to this question...... how wide is the flat spot on the dash where the radio is mounted to the left of the controls>>>>>looks to be about 5-6 inches looking to install a backup gps their that is 4.5...

I just cleaned out my attic and found 2 dinette filler cushions one is from a 2000 270 and 0ne is from a 2001 290 both are brand new and are the light beige color. they are differet sizes i assume that the bigger one fits the 290. if any one can use either of thes send me a PM just pay the...

i have a 340 da 1999. the trim on the edge of the head door is coming off>>>it is cracked and needs to be replaced..where do i go to get that>>?? is it a searay item or would a woodwork shop have it????

question i have a 1999 340 da. i just noticed spider web cracks in the dash to the left of the complainionway door just below the port winshield and to the left of the motor that opens the center windscreen. there appears to be some delamination as well. the question is>>>>>is this gelcoat or is...

just had a survey done on a 2000 340 da. all cylenders on both engines were at between 170 and 185 except the number 5 cylender on both engins was low 140 port 150 starboard. any thoughts??? is this a deal breaker both engines have approx 550 hours any input is welcome thanks

how much work is it to remove and replace the carpet floor on a 340 da???is it just glued down? is the piece of carpet replaceable from searay, or is it just sometime a commercial carpet company can do?? is it a do it yourself project????

just had a survey done on a 2000 340 da. the boat passed survey with no problems except for some moisture found on the top deck just below the windshield, and some "slight" delamination. is this a deal breaker if not how is this fixed???? i have heard that 1. you can drill holes and inject epoxy...