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Why does it look like there is a piece of 1/4 inch plate and 2 washers between the converter and the flex plate? Is there enough clearance between the converter and the flex plate when you slide the converter into the trans? If not, and the noise didn't start till the converter went in. Might have taken the thrust bearing out would be a guess. Like another poster stated earlier, you should have been able to push the converter back into the trans to fire it up and check without pulling the trans. Then you could have just pulled the motor like your going to have to do anyway. Is it even a LS converter? Did an adapter get used if not? I have never saw that much **** stacked between them like that before. It sucks your motor is messed up. I would not try or use that converter after its fixed. Because if the company that made that was that far off, stay away.
Sucks your having to go through this. I definitely feel for you. Best of Luck to You. Hopefully its not to bad.
Why does it look like there is a piece of 1/4 inch plate and 2 washers between the converter and the flex plate? Is there enough clearance between the converter and the flex plate when you slide the converter into the trans? If not, and the noise didn't start till the converter went in. Might have taken the thrust bearing out would be a guess. Like another poster stated earlier, you should have been able to push the converter back into the trans to fire it up and check without pulling the trans. Then you could have just pulled the motor like your going to have to do anyway. Is it even a LS converter? Did an adapter get used if not? I have never saw that much **** stacked between them like that before. It sucks your motor is messed up. I would not try or use that converter after its fixed. Because if the company that made that was that far off, stay away.
Sucks your having to go through this. I definitely feel for you. Best of Luck to You. Hopefully its not to bad.
Its a FTI 5100 stall converter for a turbo 400. It has a adapter to use the ls1 flexplate. I haven't measured it yet to see if the washers gave the correct amount of shim. I will buy a flexplate to go back in that doesn't need the adapter. I pulled the transmission because it only takes 30 mins to drop it in this car. I'll pull the motor out of the top.
This video is with the engine running. You can hear the knock. Definitely doesn't look like a collapsed lifter. Do you guys think I should even pull the heads to check the lifters? I'm thinking it has to be the bottom end. Only ran it a few seconds to get this video if anyone is wondering why there isn't any oil spraying everywhere.
I don't see any oil on either side. Since that motor has been run already, there should be quite a bit of oil up there. Did this motor get primed up good before first start up?
I don't see any oil on either side. Since that motor has been run already, there should be quite a bit of oil up there. Did this motor get primed up good before first start up?
The video was a cold start after setting for a week and only ran for maybe 10 seconds to get this video. Top end Is getting oil, it just hadn't made its way up in the video.
Do you have a mechanic's stethoscope? If not, go to Harbor Freight and get one for like $7. If you fire your car up like that and stick the tip of the stethoscope on each rocker bolt, it will INSTANTLY become apparent if it's a lifter causing the sound, because it will carry all the way up into the rocker and in turn, the bolt. If the sound isn't there, go underneath and put the end on a bolt on the oil pan ( or if you can get to them, the main cap side bolts ) and if it's a rod or main knock, it will be very noticeable. If neither of those areas, check around ( being safe where you put that thing ) and you'll be able to pinpoint it easily.
WELL earlier in the thread we have determined it WAS NOT a ROD KNOCK,
If you look at the video the noise matches the rocker movement EXACTLY.
I personally wouldn't bother with a stethoscope. That might tell you which rocker/lifter/pushrod/ noise is and then what?
You're not going to pull it apart and change one lifter.
I'd take the rockers off and check them, then the pushrods, then the heads to get to the lifters, then inspect them.
WELL earlier in the thread we have determined it WAS NOT a ROD KNOCK,
If you look at the video the noise matches the rocker movement EXACTLY.
I personally wouldn't bother with a stethoscope. That might tell you which rocker/lifter/pushrod/ noise is and then what?
You're not going to pull it apart and change one lifter.
I'd take the rockers off and check them, then the pushrods, then the heads to get to the lifters, then inspect them.
Ok I didn't realize we determined it wasn't rod knock but I hope it isn't. I would think one of the rockers wouldn't be rocking quite as much as the others if it was a bad lifter. I will pull the heads this weekend to inspect.
Ok I didn't realize we determined it wasn't rod knock
Have ya read yer thread here?
I was being sarcastic. It's that looking at words thing, makes it kinda easy to miss.
Anyway, I'm the guy guessing rod knock. Only thing I haven't figured out yet is where are we sending our money to. Like how is the winner going to be notified.
How many smilie faces do I need to add so people realize I'm joking about this.
Except for my guess. I think it's a rod knock. No joke there. Excessive bearing clearance on one rod. (BUT THAT NEVER HAPPENS)
Have ya read yer thread here?
I was being sarcastic. It's that looking at words thing, makes it kinda easy to miss.
Anyway, I'm the guy guessing rod knock. Only thing I haven't figured out yet is where are we sending our money to. Like how is the winner going to be notified.
How many smilie faces do I need to add so people realize I'm joking about this.
Except for my guess. I think it's a rod knock. No joke there. Excessive bearing clearance on one rod. (BUT THAT NEVER HAPPENS)
If it's a rod knock I'll send ya a dollar 🤣.
I wasn't being a smart ****. Just wondering if I missed something. I'm thinking it's bottom end or piston skirt. I know the original owner pretty well and I know for a fact that he drove it with this knock for a few weeks Including 5200 rpm hits off the transbrake. I'm just trying to eliminate all possibilities before pulling the engine since I don't have a lift. Either way hopefully I'll have the heads off this weekend.
I wasn't being a smart ****. Just wondering if I missed something. I'm thinking it's bottom end or piston skirt. I know the original owner pretty well and I know for a fact that he drove it with this knock for a few weeks Including 5200 rpm hits off the transbrake. I'm just trying to eliminate all possibilities before pulling the engine since I don't have a lift. Either way hopefully I'll have the heads off this weekend.
transbrake you say? Ooof. Spacers. Hmmm. Have you got on it hard at all? Like pulled it high rpm? Sling a belt?
transbrake you say? Ooof. Spacers. Hmmm. Have you got on it hard at all? Like pulled it high rpm? Sling a belt?
I went for a ride in it with the original owner but haven't drove the car otherwise its a well built 10 second street car. Knocking sound started around the same time the tighter convertor was installed. I've only had the car for a month.
Hurry up, the suspense is killing me. Need some help, buy a plane ticket?
Well.... it looks like I owe you a dollar. Send me your address and I'll send it right over 😆. I pulled the heads and didn't find anything in the top end that would be making the knocking noise. There was some scarring on the lifter rollers but nothing major. I did find out that the engine is ls2 392 stroker Instead of a LSX block. Ill be pulling the engine in the next few weeks to take over to TKM and will update with what I find in the bottom end.
Just now got around to pulling the engine. Sadly I didn't find a spun bearing. There was some wear but nothing that would catch my nail. No metal in oil pan. No witness marks on anything hitting. Block is clearanced for stroker crank. There is a shiny area on the crank. Also the bearings are copper on the rod side is this normal? I haven't pulled the main caps yet. Has anyone ever experienced a knock from the main bearings?
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