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Old 06-17-2019, 06:46 AM   #1
bigd1101
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Default Oil change after head gasket job?

So, should I just drain it out cold after I get the new head and gasket on? I'm a bit worried about running the car to warm it up first seeing that any dirt that might have got in could score some engine parts. No apparent coolant is in the oil. It was sucking air though and the head was cracked.





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Old 06-17-2019, 06:55 AM   #2
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Default Re: Oil change after head gasket job?

Five quarts of oil and peace of mind, your choice .. Chap
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Old 06-17-2019, 07:08 AM   #3
eagle
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Default Re: Oil change after head gasket job?

Changing cold just means waiting longer for it to drain.
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Old 06-17-2019, 08:38 AM   #4
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Default Re: Oil change after head gasket job?

I'm blowing out the cylinder jackets for the top with compressed air, but would it be a good idea to maybe pour some gas down them or something to flush any dirt and particles down into the oil BEFORE I drain it all out? I just want to be very sure nothing gets logged between the rings and score the piston sleeves.





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Old 06-17-2019, 09:38 AM   #5
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Default Re: Oil change after head gasket job?

You'd be better off to vacuum out the cylinders rather than using compressed air. Compressed air might force particles down to where you don't want them.
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Old 06-17-2019, 10:18 AM   #6
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Default Re: Oil change after head gasket job?

Quote:
Originally Posted by katy View Post
You'd be better off to vacuum out the cylinders rather than using compressed air. Compressed air might force particles down to where you don't want them.



I've been doing both.
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Old 06-17-2019, 12:59 PM   #7
1931 flamingo
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Default Re: Oil change after head gasket job?

You do realize that "back in the day" under a tree in the back yard there were no vac cleaners and compressed air?? A rag was stuffed into the cyl, cleaned the block, installed new gasket (maybe) and off they went...............
Paul in CT
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Old 06-17-2019, 01:26 PM   #8
bigd1101
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Default Re: Oil change after head gasket job?

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Originally Posted by 1931 flamingo View Post
You do realize that "back in the day" under a tree in the back yard there were no vac cleaners and compressed air?? A rag was stuffed into the cyl, cleaned the block, installed new gasket (maybe) and off they went...............
Paul in CT

Oh I'm sure.......and I don't want to have to do this again, so I'll be a modern anal guy that I am and do all I can to avoid a re-do




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Old 06-17-2019, 08:57 PM   #9
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Default Re: Oil change after head gasket job?

If you blew a head gasket and the oil got milky you will need to pull the pan remove oil pan baffle and clean out the pan
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Old 06-17-2019, 09:21 PM   #10
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Default Re: Oil change after head gasket job?

4 qts run and check if just changing the oil. Don't just dump 5 qts in, that would be with no oil in the windage tray/valve chamber if you drop and clean the pan/valve chamber or fresh motor. Even then I would only put 4-1/2 let it settle and top as needed. Easy to add, not so easy to take back out.
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Old 06-18-2019, 02:20 PM   #11
BILL WILLIAMSON
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Default Re: Oil change after head gasket job?

All this to dump the oil???????????
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Old 06-19-2019, 06:47 AM   #12
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Default Re: Oil change after head gasket job?

Quote:
Originally Posted by redmodelt View Post
4 qts run and check if just changing the oil. Don't just dump 5 qts in, that would be with no oil in the windage tray/valve chamber if you drop and clean the pan/valve chamber or fresh motor. Even then I would only put 4-1/2 let it settle and top as needed. Easy to add, not so easy to take back out.
Good catch, thanks ..Chap
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Old 06-20-2019, 03:27 PM   #13
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Default Re: Oil change after head gasket job?

Any crud getting loose doing the head would all be above the rings. Not going to go past the rings and into the pan. At least not until running quite a while and compromising said rings and cylinder walls. OHV not so much, the oil does run back into the pan from the valvecover.
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