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any tips for cleaning intake ports on head? 200 1979

posted by  Aye Roll on  Wed Oct 30 16:06 CST 2002
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last visit: Tue Oct 14 21:08 CST 2014
[RELATED]

Carb cleaner or brake cleaner ought to safely get out any carbon / oil/ varnish buildup. Of course, if a lot goes into the cylinders, it washes away the oil- which means the rings could score the cylinder walls a little on startup. A couple squirts of oil ( I like Marvel Mystery Oil) down the plug holes should prevent any damage post-cleaning, prior to starting.
If a great deal of any solvent or cleaner goes down the holes, an immediate oil change is probably in order.
I'm sure walnut shells and other organics used as sandblast media make for great removal of varnish and intake manifold deposits, but I'm not aware of Volvo's having any problems with these deposits (as Toyotas do, supposedly). My take on such treatments is that they're a great idea- for someone else's engine.
Good luck!
===
Rob Bareiss, New London, CT ::: 86 244DL, 87 244DL, 88 744GLE, 625K Total






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