Triumph Trophy Engine Strip

[fastbob]

11 minutes ago, Bender said:

It's not supposed to. 

Exactly . 

[Mickly]

So following @fastbob ‘s advice, I’ve reduced the size of the beads of blue Hylomar.

[Mickly]

Liners fitted - gently tapped in place with a rubber mallet.

 

Thats it for a week or so as we’re off down to Newquay on holibobs

[fastbob]

3 hours ago, Mickly said:

Liners fitted - gently tapped in place with a rubber mallet.

 

Thats it for a week or so as we’re off down to Newquay on holibobs

So how much blue Hylomar has oozed out , if any ? 

[Mickly]

52 minutes ago, fastbob said:

So how much blue Hylomar has oozed out , if any ? 

None oozed out at all.

[billy sugger]

5 hours ago, Mickly said:

Liners fitted - gently tapped in place with a rubber mallet.

 

Thats it for a week or so as we’re off down to Newquay on holibobs

What make of bike is a holibob? 

[Mickly]

Had a spare hour or so ..

Cleaned up the mating faces if the crankcase & block, then new dowels fitted to the crankcase 

 

New head gasket fitted ( isn’t it a thing of beauty? )

 

Odd spacers that I had to cut in half and butt up against the cylinder head gasket at the front of the engine.

 

They fit here

 

Headbolts hand tightened

And OH BOLLOX!! 
I need 10 and only order 8
what a f’kin numpty.

In my very weak defence, the World of Triumph site says 8 required for my bike.

 

Stiil I took 10 out, so should have known !!

So that really does stop play until I get some new ones delivered.

[Bender]

You can see how easy a mistake that is to make. 

 

[Mickly]

So the extra 2 bolts were delivered while we were away.

Tightening up in the order specified in the Haynes manual

1st stage is torque to 20Nm

2nd stage is torque to 27Nm

3rd stage is a 90° turn - I’ve never had to do this before so I’ve bought a gauge and watched some YouTube tutorials on how to use it:

The long bolt in the cam cap hole only stops the dial moving by holding the lever attached to the gauge so isn’t under any strain & now the gauge hand moves as you tighten - 1st one done, but I am finding it very difficult to hold the engine on the bench while ensuring the Torx drive stays vertical and doesn’t cam out while applying the required turning force using a breaker bar, I may have enlist a mate to hold the engine.

I know some on here will say it’s all a faff & I should just go by feel, but experience and many stripped threads & broken bolts show that in this respect I definitely do not have ‘the touch’

[Mickly]

Managed to tuck the engine under my arm to steady it & all bolts now tightened as required.

Each bolt has a dab of paint when tightened in case I was called away for a domestic emergency

[Mickly]

Now I’m a bit concerned 

does this gap between block & head look right?

this is the other side.

Worried now that it’s not seated correctly & I’ll have to take it off again.

[TimR]

Tip :No need for an angle  gauge 

 

Hex head has 6 points 

Torx head has 6 points 

 

Total revolution =360° 

Each point =60°

So mark one point and then mark finishing point location  ( ie 120° count 2 points 

[Mickly]

1 minute ago, TimR said:

Tip :No need for an angle  gauge 

 

Hex head has 6 points 

Torx head has 6 points 

 

Total revolution =360° 

Each point =60°

So mark one point and then mark finishing point location  ( ie 120° count 2 points 

So the required 90° would be 1.5 points 

Oh we’ll I’ve got the gauge so may as well us it.

[TimR]

8 minutes ago, Mickly said:

Now I’m a bit concerned 

does this gap between block & head look right?

this is the other side.

Worried now that it’s not seated correctly & I’ll have to take it off again.

Look at previous photos 

 

 

[TimR]

This is my ( well the wifes) triumph meccano set 

 

Have never seen a big end that hammered and not spun round ! 

Even on competition  engines 

 

[TimR]

On 18/11/2020 at 16:00, Mickly said:

So, the cylinder liners are supposed to just pull out by hand yeah, right!!

any ideas on how to get them off without damaging them or the pistons?

Bit late but https://www.toolstation.com/nylon-drain-plug/p20648

 

( find suitable size) coupled with a slide hammer can be a godsend ...

[billy sugger]

3 hours ago, Mickly said:

Now I’m a bit concerned 

does this gap between block & head look right?

this is the other side.

Worried now that it’s not seated correctly & I’ll have to take it off again.

Have you tried to slide a feeler gauge in between gasket and head? 

[Mickly]

6 minutes ago, billy sugger said:

Have you tried to slide a feeler gauge in between gasket and head? 

I will give it a go tomorrow.

I’ll also pop the plugs in and see how the compression is ( hand cranked )

[fastbob]

4 hours ago, Mickly said:

Now I’m a bit concerned 

does this gap between block & head look right?

this is the other side.

Worried now that it’s not seated correctly & I’ll have to take it off again.

I hate to say it but I'd be worried too . I've never built a modern Triumph but that doesn't look right to me . Are those liners fully seated ? They're not resting on a bed of Hylomar are they ? 

[Mississippi Bullfrog]

Hard to tell on a phone screen but isn't the "gap" just the edge of the headgasket? A shiny new HG does show up when looked at closely.

[Mickly]

Having slept on it, I decided to take off the head.

All the liners were level with the top of the engine cases, no gaps at all, should they be slightly lower?

[Mickly]

And on closer inspection  it seems @fastbob was quite correct ( did anyone ever have any doubt? )

The liners will have to be removed again so excess Hylomar can be removed before it blocks the coolant ways.

Edited November 3, 2021 by Mickly
Typo

[billy sugger]

1 hour ago, Mickly said:

And on closer inspection  it seems @fastbob was quite correct ( did anyone ever have any doubt? )

The liners will have to be removed again so excess Hylomar can be removed before it blocks the coolant ways.

Can you not use a large syringe and a  it of tubing and suck the excess up? Hylomar never really sets, so becomes a gel like substance so should be pliable enough. If you need one I have a 60ml spare

[fastbob]

2 hours ago, Mickly said:

Having slept on it, I decided to take off the head.

All the liners were level with the top of the engine cases, no gaps at all, should they be slightly lower?

That would depend on the design of the head gasket . If the ring portions of the gasket that seal the combustion chambers are thicker than the outer section then maybe the liners are supposed to be lower than the casing . Unfortunately , this is all conjecture because although I've worked on a few water cooled engines , I've not had my hands on one where the liners are directly surrounded by coolant . 

[Mississippi Bullfrog]

The other thing to mention is that are the bolts stretch bolts? If so then you'll need new ones when re-assembling. They are one use only. That's particularly so with the bolts used these days when the final tightening is by degrees rather than torque.