253 clean up

[ari666]

no it isnt a good idea as you can mark your pistons or bores

wtf is this ****???? i use the wire wheel on my angle grinder. have done for years. never had a problem before.

 

[richo304]

thanks everyone i will try the method of piston at top dead center and wire brush it and other areas ill spray with break cleaner and try it see how it goes,

 

[vkberlina]

Carbie cleaner, is the stuff to use but honestly leave it on there when you refit the heads get the engine warmed up and set RPM at 2500 & drop a bit of water down the throat of the carbie, the carbon will depart out the exhaust very quickly.

 

[ari666]

Brake cleaner does crap-all. You will spray and spray and spray but it wont get the really hard bits off. And the wire brush will be no hood inside the chambers cos it wont reach the tight corners. Your best bet is (like you say) wire brush iff the piston tops and use a small wire wheel on the drill for the chambers.

Or you can try it the hard way.

Ps these were done with the wire wheel:

 

[VR38]

Don't forget to stuff clean rags down the cylinders you have already cleaned.
If you get the compression right with the heads (machining)??? then you will notice a good improvement with all the carbon cleaned out.

 

[ari666]

Also if you have the heads off, you may as well drop the valves and clean the stems

 

[richo304]

yeh mate ive got the heads off and will be cleaning the stems also i will try and put up a photo when i work out how to do that,,,thanks again

 

[ari666]

Stem seals are about 5 bucks a pack an totally worth it. I realise you are on a budget but stuff like that should be done while you have the chance. Also lapping the valves is timesome and boring but its very cheap and does actually help them seat.

 

[richo304]

yeh mate ill be replac the steem seals all gaskets water pump and all other bolt ons just need to use the motor to get the car rego and rwc and last till i build a carbie 304 just giveing it a good clean up so it doesnt leak any oil or blow any smoke the bores look good still have the cross hatching and no lines or grooves in them i have ran the motor before i pulled it apart and it seemed ok just had bad oil leeks from rocker gaskets and side of sump gasket,

 

[bachig24u]

as long as you linish/polish any scratches you make to a smooth finish.