Unsealed Engine + Fine Aliminium Filings

[zertek]

Ok guys, As the title states. Been workin on a mates car in his garage over the last couple of weeks. He has an RB25det sitting in his garage and it wasnt left sealed. Anyway, his old man decided to get the angle grinder out and cut a number of aliminium pipes for something he's making. When going to start a days work on the car the other day, we noticed the engine had a layer of fine aliminium dust over it. In panic we got the vaccum cleaner out and sucked up what we could of the filings. We removed the rocker covers and vaccumed the cams around the areas below the breather holes on the rocker covers, then put the vaccum up against each exhaust and intake port...

Experienced answers are needed here.

Is this engine worthy of going through all the work of a drop in even if there may be a little bit of aliminium left around that we could have missed?

Or is it now destined to be rebuilt?

[Cubes]

Get a torch and look for any shiny bits inside the ports or anywhere inside the motor.

My experience with an old 250 ford motor when I was 16 (I did a similar thing) has been a vac cleaner does very little to suck anything out of the ports unless a valve is open where it is able to create a little turbulence that picks the metal up.

Good luck.

[Blitz]

If there is even the slightest doubt, I would be pulling it down again and cleaning all components and reassembling.

[zertek]

hm.... times like this really suck.

[Dobz]

if you think there could be dust in some cylinders you're best taking the head off turning the engine upside down on the stand and washing out the cylinders with carby cleaner.

if there's only a small amount of dust that got inside the cam cover you should take the covers off, go somewhere relativley clean out of wind.

put the head on a couple of bits of wood to space it off the bench with the cams facing down, then it's a matter of dowsing around the cams and buckets with carby cleaner to wash any dust out that might be there.

you'd want at least two cans of carby cleaner if your going to give it a good wash out.

[R31Nismoid]

If there is even the slightest doubt, I would be pulling it down again and cleaning all components and reassembling.

Agreed

You'll kick yourself later if you find there was something

[Swiper the Fox]

Agreed

You'll kick yourself later if you find there was something

read post 3 of this thread

http://www.skylinesaustralia.com/forums/in...howtopic=183511

the filings will sit on the top compression ring between the piston crown and the bore. The filings will glaze the bore and not allow the ring to seal properly causing blow-by.