new bottom end how long for break in
02-17-2005, 02:53 PM
#11
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RE: new bottom end how long for break in
i wouldent run it really hard untill after 1000mi but change the oil 50mi after you run it. main and rod bearing really dont have a break in process you just dont want to be hard on them.
02-18-2005, 04:22 AM
#12
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RE: new bottom end how long for break in
ORIGINAL: bobby
change the oil after 50 miles then after 500 then after 100k then every 3k , use regular oil( castrol or havoline ) take it easy for the first thousand miles, once u hit 3k miles put synthetic in it ( AMSOIL OWNS!!!
ull be fine
change the oil after 50 miles then after 500 then after 100k then every 3k , use regular oil( castrol or havoline ) take it easy for the first thousand miles, once u hit 3k miles put synthetic in it ( AMSOIL OWNS!!!
ull be fine
sounds like a little overkill on the oil there... IMO, [sm=nono.gif]
02-18-2005, 07:57 PM
#14
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RE: new bottom end how long for break in
did you do anything to the crank or just thow bearings in? Eather way just drive it nice for a long highway ride at 55 and then you can be a little meanner to it but take it easy for a couple hundred miles.
If you just though bearings in it might not do any good if the crank is rusty it will just eat the bearings.
If you just though bearings in it might not do any good if the crank is rusty it will just eat the bearings.
02-18-2005, 09:15 PM
#15
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RE: new bottom end how long for break in
the crank was in decent shape the guy at the machine shop said it was average so i put some new mains and rods in it just to be safe until i get my new engine
02-19-2005, 04:35 PM
#16
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RE: new bottom end how long for break in
If you only chaged rod and main beaings, after you started the engine all break in required was done. When changing bearings you should prime the oil system prior to starting because the crankshaft is laying on the dry bearings.
"Break-in" is done for piston/ring/cylinder interface, if you did not take the pistons out, no need for the break in.
Oil change after an hour or so of operation is good to try and get rid on any debris left over from work before it gets in the bearings.
"Break-in" is done for piston/ring/cylinder interface, if you did not take the pistons out, no need for the break in.
Oil change after an hour or so of operation is good to try and get rid on any debris left over from work before it gets in the bearings.
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