yanmar problems

heynow2203 · #1 09-08-2013, 08:23 PM

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 · #2 09-08-2013, 09:51 PM

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 · #3 09-08-2013, 10:40 PM

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 · #4 09-08-2013, 11:23 PM

I'll post pics tomorrow night.

RUSTYNTABATHA · #5 09-09-2013, 06:54 AM

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 · #6 09-09-2013, 08:21 AM

Waiting on a pic also

heynow2203 · #7 09-09-2013, 05:38 PM

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 · #8 09-10-2013, 09:12 PM

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

Blackfin26 · #9 09-12-2013, 11:23 AM

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

Steve

heynow2203 · #10 09-15-2013, 05:18 PM

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