yanmar problems

[heynow2203]

Looking for so addvice on a thread repair I have on the side of the engine block there's a nub that comes off and the oil pressure sensor hose comes out of. I found a large oil leak coming from it so I looked at it and there's A large piece that actually Brock off so I was wondering would it be better to take a tap and thread it in further past the break (yes it threads) or cut of the excess and then thread it what's that safest way?

[Water Rat]

Heynow, believe you have a 6lp block; I would suggest calling Mack Boring, they should know that block inside and out. It may be a known issue and would think they can suggest best repair option. Good luck, wish I had that engine in my '78 23' Sceptre.

[NoBones]

Post a pic if you can....
You might be able to Heli Coil the damaged section if there is
enough meat left in the block...

[heynow2203]

I'll post pics tomorrow night.

[RUSTYNTABATHA]

I'm thinking thread what you have if you can get it started... the helicoil would require drilling a larger hole and you already have the hole there...? the picswill help greatly on any suggestions given...

[Old'sCool]

Waiting on a pic also

[heynow2203]

Can barely see it were it is located but was able to get. It I needed to use a machined thread ( 3/8" 24) instead of npt then I took a 1/8" blk nipple cut threads off then rethread it with same size then when I install it I'll use a metal epoxy seal it on the block at least this thread won't crack the block

[heynow2203]

Its all set couldn't really get any good pics dry tried

[Blackfin26]

Hope you're back up and running. That's got to be one sweet running machine! Please PM with cell again Steve

[heynow2203]

Boat ran great today out to regal sword and picked up a 55" bft repair is holding up good