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d1501983CKP33
 Post subject: Using a lot of oil
PostPosted: Tue Jun 23, 2020 4:11 am 
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4 BBL ''Hyper-Pak''

Joined: Thu Mar 26, 2020 8:11 am
Posts: 29
Car Model: D150
My slant is using a lot of oil. 99k miles on the clock and owned since new 1983. What would you suggest I tackle first?
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bcschief
 Post subject: Re: Using a lot of oil
PostPosted: Tue Jun 23, 2020 4:22 am 
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TBI Slant 6
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Joined: Fri Jul 14, 2006 6:32 pm
Posts: 239
Location: Crescent City Florida
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Compression and a leakdown test to determine the condition of the engine also inspect for oil leaks.

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Charrlie_S
 Post subject: Re: Using a lot of oil
PostPosted: Tue Jun 23, 2020 5:52 am 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8800
Location: Silver Springs, Fl.
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What is a lot of oil? 1qt in 1,000 miles, 1 qt in 500 miles? Do you see oil on the outside of the engine? Do you see smoke? When? Where? Need more info. Compression test is a good start. Also service PCV system. Then go from there.

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Charrlie_S
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volaredon
 Post subject: Re: Using a lot of oil
PostPosted: Tue Jun 23, 2020 12:45 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2928
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
My guess/bet would be that he needs to replace the valve guide seals to kill the oil consumption, maybe a couple of gaskets along the way too. That can all be done in the chassis without pulling the head.
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d1501983CKP33
 Post subject: Re: Using a lot of oil
PostPosted: Wed Jun 24, 2020 3:28 am 
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4 BBL ''Hyper-Pak''

Joined: Thu Mar 26, 2020 8:11 am
Posts: 29
Car Model: D150
Thank you for your time in this matter!
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Rick Covalt
 Post subject: Re: Using a lot of oil
PostPosted: Wed Jun 24, 2020 3:51 am 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 8800
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
How much oil?

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GregCon
 Post subject: Re: Using a lot of oil
PostPosted: Wed Jun 24, 2020 5:34 am 
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Turbo Slant 6

Joined: Thu Jun 07, 2012 4:29 pm
Posts: 737
Location: Houston
Car Model: 68 Valiant
My engine uses 5 quarts of oil every 3,000 miles, plus a filter.
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nitro_rat
 Post subject: Re: Using a lot of oil
PostPosted: Wed Jun 24, 2020 10:09 am 
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4 BBL ''Hyper-Pak''

Joined: Wed Jun 10, 2020 3:53 pm
Posts: 27
Car Model: Dodge Dart
99k is getting close to timing chain time...
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volaredon
 Post subject: Re: Using a lot of oil
PostPosted: Wed Jun 24, 2020 11:22 am 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2928
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
Timing chain has nothing to do with burning oil
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