ausmini :: View topic - carbon build up

The exhaust manifold and ports have a large carbon build up. ... what is the best way to clean this out without all the crap ending up inside the engine?

The other thing is my motor has been sitting since april. What is the normal procedure for the firstfire up after sitting for a year. I heard a drop of oil in through spark plug hole's and turn over by hand and then give it a go.

Thanks chaps!

SIMON
Yeah i pictured more than a drop in my head but typed that. A cap full per bore and then turn over by hand for a bit.

thanks again guys.

DC

Is it worth .. doing it properly?

As always, I'm waiting for the Doc to make a call.

bamnfi wrote:

As always, I'm waiting for the Doc to make a call.

Drop him an email then, it'll save everyone's replies.

Hey ohh wise and generous people of knowledge,

So here are some pics of my head, bore and pistons. I am wondering what you think, do they usually have that much crap on them? What about the patterns of the said crap?

Any tips or things I should watch out for?

Author:	floss [ Fri Mar 27, 2009 11:44 am ]
Post subject:	carbon build up - with pics now.
Hey Guys, Well looking at my engine and hoping to have it all together in the next week or so. The exhaust manifold and ports have a large carbon build up. I am going to get the engine retuned and running perfectly BUT what is the best way to clean this out without all the crap ending up inside the engine? The other thing is my motor has been sitting since april. What is the normal procedure for the firstfire up after sitting for a year. I heard a drop of oil in through spark plug hole's and turn over by hand and then give it a go. Do the enlightened ones amongst us agree and suggest anything else? I put a rag in the ports and other openings but am not sure if any loose paint or dust might have made its way in before I did that. Is it worth pulling the head to give it a good clean up> I have a new head gasket but heard that if you have a good one it sometimes is better to just leave it alone. Cheers David

Author:	sgc [ Fri Mar 27, 2009 11:51 am ]
Post subject:	Re: carbon build up and engine sitting for a while question
floss wrote: The exhaust manifold and ports have a large carbon build up. ... what is the best way to clean this out without all the crap ending up inside the engine? The manifold is easy, get a stiff bottle brush and give it a good workout. You should be able to do the same with the ports on the head, but make sure you give it a good blast of compressed air to get the loose carbon out afterwards.

Author:	simon k [ Fri Mar 27, 2009 11:56 am ]
Post subject:	Re: carbon build up and engine sitting for a while question
floss wrote: The other thing is my motor has been sitting since april. What is the normal procedure for the firstfire up after sitting for a year. I heard a drop of oil in through spark plug hole's and turn over by hand and then give it a go. I put an oil container cap of oil down the plugholes - what you're doing is lubricating the bores, so that the top rings have oil on them - a drop of oil won't go far doesn't take long to burn the oil out

Author:	floss [ Fri Mar 27, 2009 3:06 pm ]
Post subject:
Thanks chaps! SGC That sounds good. I had thoght to do this but was worries about filling them up with carbon. chunks. Is it worth pulling the head and doing it properly? SIMON Yeah i pictured more than a drop in my head but typed that. A cap full per bore and then turn over by hand for a bit. thanks again guys. DC

Author:	albino235 [ Fri Mar 27, 2009 3:37 pm ]
Post subject:
floss wrote: Thanks chaps! SIMON Yeah i pictured more than a drop in my head but typed that. A cap full per bore and then turn over by hand for a bit. thanks again guys. DC Take the plugs out and spin it with the starter motor until you get oil pressure, spinning it by hand won't give you enough speed.

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Author:	sgc [ Fri Mar 27, 2009 5:27 pm ]
Post subject:
floss wrote: Is it worth .. doing it properly? It's always worth doing it properly But unless the carbon build-up is restricting gas flow in the head, I'd leave sleeping dogs lie.

Author:	bamnfi [ Fri Mar 27, 2009 10:35 pm ]
Post subject:
As always, I'm waiting for the Doc to make a call.

Author:	TheMiniMan [ Fri Mar 27, 2009 10:57 pm ]
Post subject:
pull the plugs,,, P!$$ a bit of oil down each cyl,,, spin it up on the starter motor till you get oil pressure on the gauge but with rags catching all the oil comming out the plug holes after that just replace the plugs & fire her up job done the carbon in the exh ports is going to come back within a few weeks anyways, don`t worry about it Just run it

Author:	Mick [ Fri Mar 27, 2009 11:07 pm ]
Post subject:
bamnfi wrote: As always, I'm waiting for the Doc to make a call. Drop him an email then, it'll save everyone's replies.

Author:	drmini in aust [ Sat Mar 28, 2009 6:18 am ]
Post subject:
Mick wrote: bamnfi wrote: As always, I'm waiting for the Doc to make a call. Drop him an email then, it'll save everyone's replies. See Matt's answer above...^^^ But if you get no oil pressure up in 20 secs or so, undo the block to filter pipe and prime the oil pump. Fill to top of hole in block, wind motor backwards until oil level disappears, repeat. Refit oil pipe but leave banjo bolt 1/2 turn loose. Crank motor again. When it squirts out, do it up.

Author:	floss [ Mon Apr 13, 2009 8:13 am ]
Post subject:
Hey so I pulled the head today. Its pretty carbonated on the tops of the pistons and in the chambers in general. I will clean these out as best as I can. with a rag and some metho/petrol. I am going to check and make sure that the bores are spherical What else shoud I do with the head off? I took pics but the car is at my girlfriends dads and he has DIAL UP I could draw you a quicker picture in paintbrush then it would take to upload. I will upload when I get home tonight.

Author:	floss [ Mon Apr 13, 2009 9:48 pm ]
Post subject:
Hey ohh wise and generous people of knowledge, So here are some pics of my head, bore and pistons. I am wondering what you think, do they usually have that much crap on them? What about the patterns of the said crap? Any tips or things I should watch out for?

Author:	drmini in aust [ Mon Apr 13, 2009 10:02 pm ]
Post subject:
Looks pretty normal, #4 maybe has a worn inlet valve guide or valve stem letting some oil down.

Author:	NAV [ Mon Apr 13, 2009 10:07 pm ]
Post subject:
floss wrote: Hey ohh wise and generous people of knowledge, So here are some pics of my head, bore and pistons. I am wondering what you think, do they usually have that much crap on them? What about the patterns of the said crap? Any tips or things I should watch out for? That head and pistons look fine as far as carbon goes. They will come up a treat with a quick cleanup. Just look for cracks around the seats. And this would also be a good time to put new valve stem seals in if you can get your valve springs off. Oh and it's always a good idea to get the head face skimmed to ensure it's dead flat. That's not carbon buildup, THIS is carbon buildup

Author:	The Ranger 89 [ Mon Apr 13, 2009 10:30 pm ]
Post subject:
i buffed my head with a soft wire wheel on my angle grinder lapped the valves banged it back together ajusted the valve clearances purred nicely

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