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how do you re-con lifters
Posted: Thu Jul 17, 2008 2:39 pm
by TVRleigh
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... AQ:GB:1123
This guy seems to running a strange business of reconditioning Lifters and rockers.
Did not think it was a good thing to do either.
Posted: Thu Jul 17, 2008 2:53 pm
by chodjinn
Rockers should be fine to be reused, but lifters are a definite no no as I found out recently.
From what I can tell, his 'reconditioning' involves cleaning them . . .
Posted: Thu Jul 17, 2008 3:27 pm
by ChrisJC
Presumably he's reground the bottom so it's perfectly flat again......
Chris.
Posted: Thu Jul 17, 2008 4:37 pm
by Teesdale_landrover
you would not believe how much these things wear until you get them out,
i guess resurfacing them is a good idea, and it may even help when setting the clearances if you have skimmed your heads aswell
Posted: Thu Jul 17, 2008 4:51 pm
by Rossco
Guaranteed to knacker your cam in 20 mins.
Used lifters are good for two things......paper weights or the bin.
Wish I could sell used 3.5 blocks for £300.......I've scrapped 5 this year because no-one wanted them.
Posted: Thu Jul 17, 2008 4:54 pm
by Teesdale_landrover
will it just cause them to wear extremely quickly?
Posted: Thu Jul 17, 2008 5:00 pm
by Rossco
The cam and lifters are the two most critical items in any engine rebuild.
If you have a used cam and the lifters that it used and have kept a note of which valve each lifter was operating then you can reuse them. Even then it's probably a false economy.
Even with a new cam and new lifters the first 20mins of running are crucial as it is possible for one of the lifters to wear or for a cam lobe to go completely flat.
Rule of thumb is always use a new cam, new lifters and plenty of cam lube. Then when the engine starts keep the rpm above 1800 (preferably 2000) for 20-25 mins.
Posted: Thu Jul 17, 2008 5:09 pm
by TVRleigh
chodjinn wrote:Rockers should be fine to be reused, but lifters are a definite no no as I found out recently.
From what I can tell, his 'reconditioning' involves cleaning them . . .
True you can re-use rockers but if they are worn you cant refurbish them.
even if you replace the warn shafts the rockers will be contaminated and wear the new shafts very quickly.
I sent the guy an email asking how he's refurbished the lifters.
Posted: Thu Jul 17, 2008 5:12 pm
by Teesdale_landrover
im guessing it may be frowned upon but i tend to pack the pump with vaseline to get my oil pressure after a rebuild,
also (shameless plug as i have one forsale) mark adams chips let the engine turn over a few times before it will start helping prime up the oil pressure.
Posted: Thu Jul 17, 2008 6:14 pm
by HairbearTE
ChrisJC wrote:Presumably he's reground the bottom so it's perfectly flat again......
Chris.
