ls3 new stroker issue
ls3 new stroker issue got my ls3 took to the machine shop. had all the machine work measuring etc done.
ordered all the parts and gaskets they said i will need to button it up.
btw not my first ls been building em for 15 years.
but first stroker
went to hookup converter and noticed motor only went 180 side to side
never a full rotation
took it out tore it down
im down to crank pistons rods mains cam and lifters. no heads or oil pump no timing chain either.
motor still locks at 180 either way.
never spun under a starter only by hand.
please help. i about to rip apart the pistons and rods. im at a loss.
-Thanks-
ordered all the parts and gaskets they said i will need to button it up.
btw not my first ls been building em for 15 years.
but first stroker
went to hookup converter and noticed motor only went 180 side to side
never a full rotation
took it out tore it down
im down to crank pistons rods mains cam and lifters. no heads or oil pump no timing chain either.
motor still locks at 180 either way.
never spun under a starter only by hand.
please help. i about to rip apart the pistons and rods. im at a loss.
-Thanks-
Seems plausible, but hard for me to believe that this didn’t get caught on the second or third rod assembly that got installed on the crank during short block build.
Staging Lane
Joined: Jul 2017
Posts: 81
Likes: 12
i know what you guys are saying. what i remember is possible that i only went back and forth never a full rotation.
Or that something fell in there and only locks in that range.
will do more tear down tomorrow and post results.
thanks.
Or that something fell in there and only locks in that range.
will do more tear down tomorrow and post results.
thanks.
Check the cam retainer plate bolts. If they’re too long, they can hit the counterweights and stop the engine from turning just like what you’re describing. Rod bolts htting the block is another possiblity but you would get more than 180 degrees of rotation. Rods could be hitting the windage tray too, but I would think there would be a lot less than 180 degrees.
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Teching In
Joined: Jun 2014
Posts: 8
Likes: 0
Check the cam retainer plate bolts. If they’re too long, they can hit the counterweights and stop the engine from turning just like what you’re describing. Rod bolts htting the block is another possiblity but you would get more than 180 degrees of rotation. Rods could be hitting the windage tray too, but I would think there would be a lot less than 180 degrees.
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Verdad Gallardo Check the cam retainer plate bolts. If they’re too long, they can hit the counterweights and stop the engine from turning just like what you’re describing. Rod bolts htting the block is another possiblity but you would get more than 180 degrees of rotation. Rods could be hitting the windage tray too, but I would think there would be a lot less than 180 degrees.
I think your onto something.
to verify this i went to the garage took the cam out and it rotates freely.
it wasnt the cam retainer or those bolts.
think since its is a 598 lift cam it was off, as in wrong stroke.
how do i set that correctly. to make sure im on the correct stroke and then align the dots.
thanks guys....
On the stroker builds some time the rear piston if not build for a stroker application the skirt in the back will hit and it has to be notched is not a whole lot is just to clear, turn the crank slow looking at number 8 piston and you'll see it.
Some manufacturers notch one piston and mark it to be use only in the back for this purpose.
Some manufacturers notch one piston and mark it to be use only in the back for this purpose.
You seem to have found your problem but another area that can cause a clearance issue is the windage tray.
On the stroker builds some time the rear piston if not build for a stroker application the skirt in the back will hit and it has to be notched is not a whole lot is just to clear, turn the crank slow looking at number 8 piston and you'll see it.
Some manufacturers notch one piston and mark it to be use only in the back for this purpose.
Some manufacturers notch one piston and mark it to be use only in the back for this purpose.
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
got my ls3 took to the machine shop. had all the machine work measuring etc done.
ordered all the parts and gaskets they said i will need to button it up.
btw not my first ls been building em for 15 years.
but first stroker
went to hookup converter and noticed motor only went 180 side to side
never a full rotation
took it out tore it down
im down to crank pistons rods mains cam and lifters. no heads or oil pump no timing chain either.
motor still locks at 180 either way.
never spun under a starter only by hand.
please help. i about to rip apart the pistons and rods. im at a loss.
-Thanks-
ordered all the parts and gaskets they said i will need to button it up.
btw not my first ls been building em for 15 years.
but first stroker
went to hookup converter and noticed motor only went 180 side to side
never a full rotation
took it out tore it down
im down to crank pistons rods mains cam and lifters. no heads or oil pump no timing chain either.
motor still locks at 180 either way.
never spun under a starter only by hand.
please help. i about to rip apart the pistons and rods. im at a loss.
-Thanks-
SOLVED
it was 2 things one which was mentioned last night.
Been putting it back together and spinning it at each phase.
All good.
1.It was the cam plate bolts one was too long and locked the crank at oint to point as previously described.
2. windage tray needed to be spaced out has some rub on 3,5,7. not enough to lock like the cam plate bolt but enough to mark the tray and spacing it with 2 stainless washers per hole was enough.
Thank you guys for all the input and help.
Hope this helps someone in the future.
it was 2 things one which was mentioned last night.
Been putting it back together and spinning it at each phase.
All good.
1.It was the cam plate bolts one was too long and locked the crank at oint to point as previously described.
2. windage tray needed to be spaced out has some rub on 3,5,7. not enough to lock like the cam plate bolt but enough to mark the tray and spacing it with 2 stainless washers per hole was enough.
Thank you guys for all the input and help.
Hope this helps someone in the future.
SOLVED
it was 2 things one which was mentioned last night.
Been putting it back together and spinning it at each phase.
All good.
1.It was the cam plate bolts one was too long and locked the crank at oint to point as previously described.
2. windage tray needed to be spaced out has some rub on 3,5,7. not enough to lock like the cam plate bolt but enough to mark the tray and spacing it with 2 stainless washers per hole was enough.
Thank you guys for all the input and help.
Hope this helps someone in the future.
it was 2 things one which was mentioned last night.
Been putting it back together and spinning it at each phase.
All good.
1.It was the cam plate bolts one was too long and locked the crank at oint to point as previously described.
2. windage tray needed to be spaced out has some rub on 3,5,7. not enough to lock like the cam plate bolt but enough to mark the tray and spacing it with 2 stainless washers per hole was enough.
Thank you guys for all the input and help.
Hope this helps someone in the future.