Hybrid View
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06-14-2007 12:42 AM #1
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06-14-2007 03:46 AM #2
why did you switch to lighter viscosity? Hank
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06-14-2007 04:42 AM #3
oil
I use 20w50 in every thing. seems to work for me. dragster to lawn mower.
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06-14-2007 05:12 AM #4
Just a question - are there any valve seals left in this engine. If it's a 289, it's OLD and the OEM valve stem seals weren't one of Ford's best ideas. Also, how sloppy are the valves in their guides. SBF engines tend to wear out when they get OLD (so does everything else, even Chebbies ) and 100K in a '60's engine is.........Dave
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06-14-2007 10:47 AM #5
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06-14-2007 11:12 AM #6
I'll add to Denny's post which I fully agree with.
"Rebuilt" means a lot of things to different mechanics - maybe a valve job with new seals is his definition. Mine definition of rebuilt is to install new valve guides, probably new valves, springs and rockers and retainers and locks plus a 3 angle valve job. Remember - a 289 is OLD and my guess is that you never had new guides installed as it is fairly expensive and is a job for a very well eqiupped shop. Some folks like the bronze guides - I don't except for a race type engine that is renewed regularly. Bronze is just a fancy copper alloy and is by that nature soft. My preference for a street engine is iron. Iron has by nature a lubricity factor (high carbon content) and wears slowly. Also, you may have a high lift camshaft that may be messing with operating angle/geometry - and Fords seem to have this characteristic with their rocker arms, rail type especially - and this in turn causes valve stem and guide wear. Roller rockers will alleviate this a bunch.
Another thing to consider is to have a leak down compression test made - you may just have some rings that are worn or even broken which will foul plugs as well.
Just some food for thought !!!!Dave
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06-16-2007 11:44 AM #7
well it keeps on smoking constantly. aw man i give up with this motor i think ill buy a 331 short block.well thanks allot guys for your help.
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06-17-2007 12:02 PM #8
put 20-50 in it and stop belly achin
I see a picture of his clutch setup.
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