help with tune up

[Dmaxx85]

Ok so i got some plug silicone plug wires from advanced for my 4.3 mercruiser. now i need to get a new cap and rotor which i found on here.. that was easy. now i need some plugs and a fuel filter. the current fuel filter is made by aqua power the number on the filter is 6031 and the number on the fuel filter head is 35-805269 how would this match up to a sierra fuel filter? as far as the plugs i needs the OE part number if you guys could help me out with that i would appreciate it very much. my motor 4.3 merc is in a 1997 mariah shabah 180 the motor serial number on the motor is 0k170684.
thank for the help
travis

 

[NHGuy]

Re: help with tune up

I hope you got the wires for a Mercruiser & not for a Chevy. The Mercruiser application uses a longer run to get around those big water jacketed exhaust manifolds. Look up the plugs and fuel filter at the top of this page. If your fuel filter looks like an oil filter it's a fuel water separator that is also a fuel filter. Most places refer to them as a separator though. Lots of places have them, marinas, boat places, Walmart.
BTW, I like the NGK plugs the best. You can get them anywhere.
If your wires turn out to be wrong look into stainless core wires, I got a set a few years ago and it really woke my motor up.

 

[achris]

Re: help with tune up

Spark plugs - NGK BPR6EFS

The fuel filter housing is a genuine Merc. A Sierra element for that is this ->Fuel Filter for Johnson, Evinrude 502905, Volvo Penta 3851218-2, OMC Sterndrive Cobra 174144, Crusader 98041, GLM 24930, Tempo 170110 - Sierra 18-7846 - iboats

 

[Dmaxx85]

Re: help with tune up

Yup definitely got plug wires for a 4.3 chevy motor. So they won't be long enough for my 4.3 mercruiser?????

 

[achris]

Re: help with tune up

Yup definitely got plug wires for a 4.3 chevy motor. So they won't be long enough for my 4.3 mercruiser?????

Plug wires on a car engine run across the top of the engine and down over the rocker covers. Can't do that with a marine engine, the exhaust manifolds get in the way, instead they run down from the distributor, along the back of the engine, around the corner along the head (under the manifolds) to each plug. 'Standard' auto wires is way too short... Get a set for a V8, then toss the 2 shortest wires and use the rest. Also make sure you have the right coil to dissy lead. It's NOT the same as a car one....

Chris.....