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oil gallery screws


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hi friends

 

well i have started cleaning the block old gaskets, water jacket

and oil ways , unfortunately i cannot undo the Allen key screws in the oil gallery

i believe i am going to have to drill and use an extractor

any ideas how to get the b---- out :angry:

 

regards pink

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they are a tapered thread.try a sharp chisel to get them turning, they will become loose very quickly.

or drill through and use a stud extractor.

why do you want to take them out anyway.

richard

 

 

hi Richard striping down the engine to rebuild a fast road engine

 

have been told to strip down and check every thing

 

pink

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Absolutely take them out, drill and stud extractor.

 

Also remove the one at the front, its a lead bung, as is the one above the oil filter. Tap these and fit threaded plugs back in.

 

Imperative to do and flush out the oil galleries.

 

Steve

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There a couple of other ways to get them out, you could try heating them up with some gas, often it will soften the locktite, or use a socket that will just fit over the plug and give it a good bang with a copper hammer so not to damage the socket, this works for many tight plugs and loosens the tread.

Make sure you can get replacements first if you have resort to drilling out!

John

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hi guys

 

got them out mine were not tapered, parallel grub screws

they all came out with an extractor

one wouldn't, always one, had to re drill and tap but went ok

 

could i have some more information on the other bungs that have to be drilled out

 

cheers pink

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...mine were not tapered, parallel grub screws

.

I thought untapered. Was expecting to see something like iron plumbing fittings.

You have to mic them to see the taper. 1/4" NPT Allen-headed taper plugs.

 

Ivor

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Hi all ,

even though iv,e had the engine block chemically cleaned should i renew these screws [allen key bolts] in the side of the block.

regards nick.

 

 

 

I would, you need to flush sludge from the gallery, chemicals alone one shift it, you need to blow from the front plug all the way through.

 

Steve

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Thanks steve i will do that, have you run her in yet?

nick.

 

 

 

Hi Nick

 

220 miles on the new engine, need to get it to 300 - 400 to change the oil and open it up, but with this weather, that's going to take some time!

 

Steve

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