Bolt left over!

spartacus · 08 November 2010, 22:48

Recently had to remove the trim motor of my Tohatsu 2-stroke 60hp to rebuild it. I also removed the thermostat (needed a new gasket), the electric box cover (where solenoids are located), the PTT wiring harness, etc. Everything that came off I placed in one location in the garage on a bit of wood. I was meticulous in doing this. Only trouble is, I have a bolt left over after it's been put back together! 99.9% sure it's related to the engine and not something from another project. The bolt is an 8mm-fit allen-head with washer, alloy, not stainless-steel.

From what I can tell the very small writing on it says H S K (above) and A 2 - 7 0. Bu**ered if I know where it goes? It didn't seem to hold anything on (which begs the question) "why did I remove it?"

Anyone with a Twatsoo out there (mid-sized 2-stroke) - can you please have a quick scan at your engine and help me out. I've posted a picture for reference.

martini · 08 November 2010, 22:55

A2-70 means it's made of 304 stainless, 700N/mm sq.
Not that this'll help you any

spartacus · 08 November 2010, 23:14

Quote:

Originally Posted by martini

A2-70 means it's made of 304 stainless, 700N/mm sq.
Not that this'll help you any

Cheers martini. 304 stainless certainly seems to link it to the engine. The plot thickens!

9D280 · 09 November 2010, 08:24

Just a stab in the dark here, but I have very similar screws holding my PT motor onto the "manifold" below.

M8 is going to be holding something big - ish on.

doggypaddle · 09 November 2010, 08:52

Quote:

Originally Posted by 9D280

Just a stab in the dark here, but I have very similar screws holding my PT motor onto the "manifold" below.

M8 is going to be holding something big - ish on.

something you might notice when it falls in the briney

spartacus · 09 November 2010, 09:19

Quote:

Originally Posted by 9D280

Just a stab in the dark here, but I have very similar screws holding my PT motor onto the "manifold" below.

M8 is going to be holding something big - ish on.

Cheers 9D280. Any chance of a picture?

Bigmuz7 · 09 November 2010, 13:39

Just to keep my fitters on the ball it has been not unknown for me to chuck in a spare bolt into their magnetic tray whilst they were busy on a project

... in fairness .. I always owned up to it

martini · 09 November 2010, 15:02

Obvious I know but are you sure it's not one of the bolts that connect the trim motor to the trim pump? May be hidden round the other side up against the saddle?

9D280 · 09 November 2010, 15:14

Quote:

Originally Posted by spartacus

Cheers 9D280. Any chance of a picture?

No pics to hand, but have a look at this:

http://www.ishopmarine.com/ishop/jsp...=&eCatSupFldr=

Item 12

spartacus · 09 November 2010, 21:28

Quote:

Originally Posted by martini

Obvious I know but are you sure it's not one of the bolts that connect the trim motor to the trim pump? May be hidden round the other side up against the saddle?

The trim motor housing didn't have to be fully removed from the pump. The motor was held in place with 4 x cross-head 10mm bolts, rubber 'o' rings, etc. Undo these - and the motor housing can be extracted. I'll have another look though - to see if there's anything obvious.

spartacus · 09 November 2010, 21:33

Quote:

Originally Posted by 9D280

No pics to hand, but have a look at this:

http://www.ishopmarine.com/ishop/jsp...=&eCatSupFldr=

Item 12

Thanks. I sourced this from a Tohatsu mechanic. Can't see the bolt in question though.

9D280 · 10 November 2010, 08:13

Did you remove the biog casti g form between the transom clamps? M8 strikes me as the sort of size you might find doing that, or possibly holding an anode on?

spartacus · 10 November 2010, 22:51

Quote:

Originally Posted by 9D280

Did you remove the biog casti g form between the transom clamps? M8 strikes me as the sort of size you might find doing that, or possibly holding an anode on?

No. Didn't remove anode, or anything between transom clamps. Got to be a bolt from something else that's found it's way into the parts I removed. There's no other allen-head bolts on the engine that I'm aware of. Downhilldai may be able to confirm - he's got the same engine.

Downhilldai · 10 November 2010, 23:06

Quote:

Originally Posted by spartacus

Downhilldai may be able to confirm - he's got the same engine.

Sorry, I don't have it any longer.

spartacus · 11 November 2010, 07:55

Quote:

Originally Posted by Downhilldai

Sorry, I don't have it any longer.

Well there goes my biggest source of information, second only to Tohatsu Corporation! Cheers anyway.