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  #1  
Old 06-03-2021, 07:13 PM
79 Wolfpack 79 Wolfpack is offline
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Location: Montana
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Adjusting travel out of hydraulic lifter plunger

What are all your thoughts on adjusting travel out of the hydraulic Lifters.

I put together a 360 mode 2 engine with 343 pistons and 79 big chamber heads.

I installed some Harland sharp rockers for bridged heads and was thinking about adjusting travel out of the lifters
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Old 06-08-2021, 11:20 AM
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SC/397 SC/397 is offline
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Why?
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Old 06-08-2021, 06:58 PM
wiley-moeracing wiley-moeracing is offline
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Yeah, why? looking to make a solid lift set up?
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Old 06-09-2021, 09:50 AM
79 Wolfpack 79 Wolfpack is offline
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Join Date: Jan 30, 2015
Location: Montana
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Why ?
It is suggested in the AMC book performance America style For a mode 2 engine.

During long high rpm use the hydraulic lifters can get aerated oil and lose lift.

The lifters I bought have a lot of plunger travel . If I set them up with normal preload . It almost seems like the pushrods could fall out if the lifters oil drained back after sitting over night or a few days on cold start up .

I should have bought better quality low travel hydraulic lifters.

The only reason why not I know of would be if the lifter got pumper up from accidentally floating the valves . The pistons could hit a valve.
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79 Cherokee wt
AMC high compression 401
t18 4speed
74 Cherokee nt plow
360 th400
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Old 06-09-2021, 10:03 AM
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What do you consider, Long and Hi RPM use?
Which oil filter are you using? A poor quality oil filter will leak down over night resulting in rattle on start up.
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Old 06-09-2021, 08:37 PM
79 Wolfpack 79 Wolfpack is offline
232 I6
 
Join Date: Jan 30, 2015
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4000 - 5500 rpm for 30 minutes to an hour .

I have used many different filters.
Baldwin b9
Motor craft
Wicks
Napa
Currently I have been using carquest filters the guy told me they are made by
Baldwin.
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79 Cherokee wt
AMC high compression 401
t18 4speed
74 Cherokee nt plow
360 th400
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  #7  
Old 06-12-2021, 09:48 AM
wiley-moeracing wiley-moeracing is offline
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What are you using this motor in to run at that rpm for an hour?
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  #8  
Old 06-13-2021, 08:22 AM
79 Wolfpack 79 Wolfpack is offline
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Amc powered jet boat
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79 Cherokee wt
AMC high compression 401
t18 4speed
74 Cherokee nt plow
360 th400
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  #9  
Old 06-14-2021, 04:29 AM
wiley-moeracing wiley-moeracing is offline
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Join Date: Feb 15, 2010
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I would suggest a solid type set up then but pay close attention to your oiling system and temp, that will be a lot of load on the engine at that rpm but if set up right should work.
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