Snapped Exhaust studs part II

[anutz]

So after a few PM's and maxzer1500's comments about scotchbrite on the bores, i am looking into it.....any recommendaitons on what type of grade to use?

Also i am thinking can i use the scotchbrite for preparation of the Head and Cylinder gasket sufraces, i use Wet and Dry on my last one after i used a sharp razor to remove old gasket material..

If i can clean up all the important mating surfaces carefully and then scotchbrite as well as on the bores it would be good...

[maxzer1500]

I would use scotchbrite on the cylinder bores but you don't want to leave even tiny scratches on the head. The marks on the bore don't want to feel too uneven. Pics of the rings prob wouldn't mean a lot, you really need someone who knows what they are doing to have a look at the parts.

[anutz]

OK so i am gonna scotchbrite the bores, the head i will just prep as i did the last one.....scraper and some very fine wet and dry...

regards getting parts looked at - i will post some pics but no plans to take it any where, it came as a working engine so i should be able to re-assmble and then deal with any issues.....

[Jules-C]

Have you got a picture of cleaned cylinder bores? They looked OK to me but hard to tell since still had oil/muck on them

[anutz]

Added a pic or two - still need to get the highest ring of dirt off them but they look ok - but thats to me  :lol

[Jules-C]

Yeah look pretty good to me too.  The ring marks just look nothing more than marks were it's been sitting for a while and nothing to worry about.  I think you risk doing more harm than good if you try doing anything more to them

[anutz]

yes i think less is more in some cases, especially with this stuff......i need to make sure i am careful when i remove all the old gaskets on the mating surfaces as well.....

[red98]

Look good to me.... .....did you see the engine running before you bought it ?

[anutz]

no... :o

but i have assurances in email before i bought it ran etc....so any major issues i should be ok....i hope! :rolleyes

what can go wrong eh!!!!! :lol

[anutz]

In the intersts of keeping the landing page from killing internet connections with hundreds of image downloads i will just post updates inline...

So cylinder head been drilled and all exhaust stud holes look good, got a stainless steel set on the way i got for 7£ so will fit them when they arrive...



And....



Ignore the head in the background, one i got off ebay and when it arrived the camshaft caps were snapped so its for the bin....

Head and Cylinder gaskets on the way as well...

[anutz]

Anyone tell me what this component is - its the white thing i removed from the recess above, i think it must be oil pressure sensor or something....has a orange rubber O-ring, i cannot see it in the service manual - but am still looking

The left hand hole is where the water pump fits, i have removed that for cleaning....to the top right would be the sprocket....hope that gives you a location

Currently cleaning the engine as you can see

[mobile mouse]

It looks like the neutral gear sensor. the orange rubber is an oil seal.
When the gearbox is in neutral then there is a brass pin (this pin rotates when you change gear) under were you removed the white plastic unit which makes contact and is a short to ground i think and the green neutral light on the instrumentation lights.

[anutz]

thanks for that mobile mouse - indeed that is what it is......

[anutz]

anyone ever used shot blast on the engine to clean it up....been reading about soda blast as well which leaves a protectvie film on until you paint it...

or am i asking for a world of pain

[sinto607276]

Not that I've used shot blast anutz, but I've only seen it done on biggish bits of metal etc, not seen it done on engines.
But I've heard/read somewhere about dipping the engine in some sort of solvent, but check up first as I'm not 100% sure what solvent etc

[mobile mouse]

google vapour blast... and select images


I have never seen parts so clean, they can do whole engines.


There may be someone who does it near you..

[anutz]

will have a look into that, right now i need to take the head down the engine shop, looking at it there are one or 2 tiny marks on it, want to see what they think, one is near a water jacket channel ( assuming thats what its called ) but its not borken the perimieter of it

[anutz]

[anutz]

Pistons cleaned up and almost ready to re-assemble, any one recommend a good piston ring compressor they have used?

[His Dudeness]

What did you use to clean the carbon off the pistons?