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sheyski 07-13-2011 12:18 PM

Need part #s & Vac Hose size for LT-1 350
We were wanting to do a little research on pricing on these parts. We were told they could all play a part in a sluggish engine (sluggish in low RPMS, idles fine). Does anyone know these numbers by chance?

Also, would you happen to know the vacuum hose size (diameter)? Our boat is currently down at the lake and we have no way to check it.

These are the parts we are looking for:

Idle Air Control Valve
Map Sensor
Fuel Regulator
Throttle Position Sensor


JLeuck64 07-13-2011 01:05 PM

I know this is not the answer you are hoping for... but may I suggest you pull the boat out of the water and take it to a repair facility? In the short term this will be the fastest and the least expensive way to solve your runability issue. Swapping out parts based on suggestion always costs WAY more than it should and also takes longer to find the cause. A good tech should be able to diagnose your problem accurately within just a little time ( ;

sheyski 07-13-2011 01:43 PM

Ideally, that's what we would do. The problem is, we live in BFE. No Mastercraft dealers for hundreds of miles and no boat mechanics for hundreds of miles. My machinist husband is a drag racer and has many mechanic friends and this is what everyone is suggesting. Yes it could be more expensive, but he works for an auto parts store and whatever we don't need, we send back. He'll install 1 thing at a time until it's fixed.

So if you know the part numbers, that would be handy so he could look it up on their computer. He can find many part #s. Just not sure which one our boat requires.

Spork 07-14-2011 05:17 PM

I agree with jleuck but many parts have part numbers on them, this sounds dumb but did ya'll look on the parts themself, a LT1 is a LT1

sheyski 07-14-2011 05:37 PM

Our boat is at the lake, 2 hours away. We were hoping to pick up the parts before we drove down there this weekend.

Thanks. We'll figure something else out.

Spork 07-14-2011 06:26 PM

call skidim 803-345-0996 they have good parts reference its prolly your best bet

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