Would be good to know the #'s,minimum compression for a 6.5 is 400 psi.
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400 psi is what my compression test showed that my truck has
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Having the bare minimum for compression is not what I would call good,combine that with a slow cranking starter and possibly undersized batteries and you likely have the cause of your hard starting.
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Ok so how do I get my compression up?
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Faster cranking speed from a new or rebuilt gear reduction starter and good batteries like theses from walmart: EverStart® Battery MAXX-78N (if made by johnson controls) or rebuild the engine.
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Yea rebuilding the engine ain't an option right now, not even close to an option, so batteries and start it is
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Worn rings/cylinder bore and or valves would cause low compression hows the blowby?
---AutoMerged DoublePost--- Could be highly likely as 6.5's in the duallys are usually the first to go as theyve generally been worked harder ---AutoMerged DoublePost--- Or you could sell me the truck and give me a killer deal:jump: |
Fix the starter first and see how that goes.
Then if little improvement as a last ditch effort you could add a can or 2 of engine restorer to the oil to see if any compression improvement can be had-it is little more than a bandaid though that used car dealers use to get worn out crap past buyers for a few weeks. |
Originally Posted by detroitdiesel idi
(Post 1011984)
Worn rings/cylinder bore and or valves would cause low compression hows the blowby?
---AutoMerged DoublePost--- Could be highly likely as 6.5's in the duallys are usually the first to go as theyve generally been worked harder ---AutoMerged DoublePost--- Or you could sell me the truck and give me a killer deal:jump: ---AutoMerged DoublePost---
Originally Posted by racer55
(Post 1012025)
Fix the starter first and see how that goes.
Then if little improvement as a last ditch effort you could add a can or 2 of engine restorer to the oil to see if any compression improvement can be had-it is little more than a bandaid though that used car dealers use to get worn out crap past buyers for a few weeks. |
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