You know i just saw that too. I guess i have a few more things to try out ..thanks for those diagnostic things to try.. if the belt is wobbling (ill check Monday) could that be the result of crankshaft damage?
Blown engine? bearing? camshaft?
- Thread starter dennis
- Start date
You know i just saw that too. I guess i have a few more things to try out ..thanks for those diagnostic things to try.. if the belt is wobbling (ill check Monday) could that be the result of crankshaft damage?
This might sound real dumb, but if disconnecting the coil eliminates the one (hopeful)damaged chamber,does that mean the car might be drivable for a 30mile trip to another mechanic, Mechani Direct, Lowell,MA+)? SILLY? Right?
Not sure if auto engine swappable. I think there are torque variation ,etc
I wouldn't shy away from mods. 18 yrs of mods driving a hell of a lot harder.
I Fault myself for getting carried away with burning off the carbon when i failed emissions for the first time. I sick about it but the comfort of you all helping me thru this makes me realize once again my NSX more than a car..
Those would be some expensive dice to roll IMO
It's actually 2Qts of oil in a 3Qt Accusump. One Qt is the pressurized air behind the piston in the Accusump tube.
You can use your cams from your engine. Maybe someone else can chime in and state if you need anything else.
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- 15 May 2004
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- 6,898
As for the cause I don't think you had a carbon related problem. I store my car like you do, 4 or 5 months over winter. How can carbon build inside a camber if the engine just sleeps for this time? I guess you had ignition or more likely fuel related problems like a closed injector or the like. This resulted in a failed emission test. Driving with a chip that learns the calibration after pulling the fuse and doens't recognise that there is something wrong is not good.
Good luck!
how do you know if a crank is within spec by just pulling the pan out? How you know mains & thrust bearings are ok?
You can measure the crank to see if it is round or not while in the car (I did).
You can also pull the main caps (I did) and if the bearings look good without gouges or other damage then you are fine.
The thrust bearings can also be inspected at that time too, I just push the upper half out using the lower half.
Like I said, I replaced the rod bearings on two NSX's with a knock, one was a '95 with only 60K miles.
I have also done rod bearings on countless other cars with mixed results - it really depends on the extent of the damage and how soon you catch it.
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Like I said DO NOT run the car longer than you need to for diagnosis, I mean idle the car only, no actual driving.
I am still not entirely convinced you have a rod knock - but 15 min of diagnosis will tell you.
If and I mean IF you find it is a rod, they can drop the front exhaust downpipe (5 nuts) and remove the oil pan for inspection of the bearings.
Better safe than sorry, but no real need to get carried away with plans for a new engine quite yet.
Stmpo,
I'm very sorry if you got the wrong impression. I never meant to ignore you, but as someone else said, the excellent posts on diagnosing, possible other problems, etc is just sensory overload to a engine newbie as me.
I'm trying to get all these options in a orderly filing;
For example, I'm a podiatrist, in my field there are times I can amputate a few toes and save a whole leg from a massive infection. Well, sometimes an infectious disease guy says his ideas work without loosing the toes, then a vascular guy will say patient needs by-pass , not surgery or antibiotics. The pt is ready to walk in front of a car and end it.
Now I wish I had my car home to try these things. Right now it's at the dealer, and I plan on having him do:
1. disconnect coils, to confirm rod only
2. check on this harmonic wobble, but sounds like that would trash engine anyway.
3. anything else before I confirm it's engine trashing time?
Rather not have dealer remove engine @ $1500 to examine internally, I'd rather had Larry B or Mercanic Direct in Lowell Ma do that ..
I'm still interested in your lower block STMPO, please understand I'll answer all these posts so I apologize. You've given me some rays of possible hope that this might be less to fix.
Problem the weekend is I gotta go to Long Island for:
a. Easter b.daughter birthday c.father 90th birthday. so I can read posts but hard to reply. I wish I had car here to get you better quality vid/sounds..
Thanks, Dennis
I'm very sorry if you got the wrong impression. I never meant to ignore you, but as someone else said, the excellent posts on diagnosing, possible other problems, etc is just sensory overload to a engine newbie as me.
I'm trying to get all these options in a orderly filing;For example, I'm a podiatrist, in my field there are times I can amputate a few toes and save a whole leg from a massive infection. Well, sometimes an infectious disease guy says his ideas work without loosing the toes, then a vascular guy will say patient needs by-pass , not surgery or antibiotics. The pt is ready to walk in front of a car and end it.
Now I wish I had my car home to try these things. Right now it's at the dealer, and I plan on having him do:
1. disconnect coils, to confirm rod only
2. check on this harmonic wobble, but sounds like that would trash engine anyway.
3. anything else before I confirm it's engine trashing time?
Rather not have dealer remove engine @ $1500 to examine internally, I'd rather had Larry B or Mercanic Direct in Lowell Ma do that ..
I'm still interested in your lower block STMPO, please understand I'll answer all these posts so I apologize. You've given me some rays of possible hope that this might be less to fix.
Problem the weekend is I gotta go to Long Island for:
a. Easter b.daughter birthday c.father 90th birthday. so I can read posts but hard to reply. I wish I had car here to get you better quality vid/sounds..
Thanks, Dennis
As you are a podiatrist, I have the perfect solution to STMPO's tirade... amputate a couple of his toes and we'll call it even! 
J/k.
J/k.
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You must understand the engine is damaged, accept this and move on. TOW the car to a good shop and if you suspect the rod bearing have the shop pull the oil pan and you can inspect bearings without pulling the engine. Like Angus said if the crank is ok and it is just a spun bearing it can be replaced right there on the hoist. If the engine is damaged and has to come out ,Ross at STMPO has good bottom ends then you can pull your motor and just replace the block and use your heads. You could be back on the road in no time but you must tow the car and accept that you have hurt the motor.1) tow car to a good shop 2) pull oil pan and inspect bearings,if that is what you suspect ,it is impossible to diagnose this without being there, 3) fix the problem 4) get back on the road and enjoy. I would not hesitate to purchase from Ross. I have one of his blocks in my car and it is purrrrrrfffeeeccccttttt..... Good luck.:smile:
What Brian says is true - IF the motor is damaged -
Like he says you can easily have them pull the pan and inspect damage -
Do not open the motor till you verify by unplugging the coils one at a time since that will tell you if it's a rod or not.
Do not drive the car even in the parking lot.
I mean DO NOT DRIVE IT
If you don't already have AAA membership, I recommend signing up to take advantage of their free towing (you do have to pay annual membership, but it's less expensive than a single tow in most cases). You may even be able to do this online after business hours if you have a busy work life. You don't have to carry their insurance to be a member. Be aware that it takes 24hrs before you can actually use their towing services, but this is the most cost effective way I have found to have a car towed
UPDATE on ..Blown Engine? Bearing? Camshaft?
Sorry for not updating everyone, it's been a bad few days, work, family, nsx,etc.
I had my baby flatbedded 75 miles to Mitch @ Mechanics Direct the lesser of 2 options. What I really wanted to do was get the car to Larry's ( over 250 miles) both $$$ and the towing guy not wanting to go that far made me go with Mitch..
He immediately got to dropping the oil pan and guess what.. bearing rod pieces, bent camshaft, oil pan..
Next week he drops the engine, hopefully the upper will be ok..
With 90,000 miles, '93 NSX , Mitch feels it's better to examine my engine and see what needs replacing (never had engine problems before) rather than getting an "unknown" engine. At what repairing cost do I say WTF , roll the dice on an E-bay one...
Damm it Larry, if only you lived in Warwick, RHODE ISLAND not Warwick , NY! 15 miles away..
I'll keep you all posted.. Thanks again for the excellent posts ..
regards, Dennis
Sorry for not updating everyone, it's been a bad few days, work, family, nsx,etc.
I had my baby flatbedded 75 miles to Mitch @ Mechanics Direct the lesser of 2 options. What I really wanted to do was get the car to Larry's ( over 250 miles) both $$$ and the towing guy not wanting to go that far made me go with Mitch..
He immediately got to dropping the oil pan and guess what.. bearing rod pieces, bent camshaft, oil pan..
Next week he drops the engine, hopefully the upper will be ok..
With 90,000 miles, '93 NSX , Mitch feels it's better to examine my engine and see what needs replacing (never had engine problems before) rather than getting an "unknown" engine. At what repairing cost do I say WTF , roll the dice on an E-bay one...
Damm it Larry, if only you lived in Warwick, RHODE ISLAND not Warwick , NY! 15 miles away..
I'll keep you all posted.. Thanks again for the excellent posts ..
regards, Dennis
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guy the engine from Stmpo, I'm sure he'll warranty it to be good condition.
still wondering why this engine grenaded with only 90k?
still wondering why this engine grenaded with only 90k?
- Joined
- 19 February 2008
- Messages
- 1,532
Re: UPDATE on ..Blown Engine? Bearing? Camshaft?
dude...
First of all - if you need a motor at a good price... i'll sell you one and yes I will warranty it...
Second - if you have bearing shavings and a bent cam shaft... you need a complete short block
Third - Never take heads off and crack that "factory seal" unless you have to.
Forth - fixing an NSX motor will always cost more than replacing it if done correcrtly... when ever possible... keep motor internals in pairs and sets... never replace 1 cam shaft or 1 piston....
and last - sorry to hear of this... I lost a motor a long time ago and I know how it feels.
there was a post on here about getting money for a blown motor... he is correct... your bottom end with no crank (it's worthless) is worth 500... people like ti rods... 100 each... most likley 2-3 cams are still good. possibly a head.
This wont cost as much as it looks like it will... I can help you understand what has value and what to do next.
pm me for a contact number if you cant find it here on prime... I have a motor with a factory seal on the heads I can have on a crate tomorrow.
Regards
dude...
First of all - if you need a motor at a good price... i'll sell you one and yes I will warranty it...
Second - if you have bearing shavings and a bent cam shaft... you need a complete short block
Third - Never take heads off and crack that "factory seal" unless you have to.
Forth - fixing an NSX motor will always cost more than replacing it if done correcrtly... when ever possible... keep motor internals in pairs and sets... never replace 1 cam shaft or 1 piston....
and last - sorry to hear of this... I lost a motor a long time ago and I know how it feels.
there was a post on here about getting money for a blown motor... he is correct... your bottom end with no crank (it's worthless) is worth 500... people like ti rods... 100 each... most likley 2-3 cams are still good. possibly a head.
This wont cost as much as it looks like it will... I can help you understand what has value and what to do next.
pm me for a contact number if you cant find it here on prime... I have a motor with a factory seal on the heads I can have on a crate tomorrow.
Regards
Re: UPDATE on ..Blown Engine? Bearing? Camshaft?
Thanks, that option is one I'm going to push Mitch on next wk when I hear what he finds when he drops it..very attractive, you've rebuild this one? full engine with accessories?
clutch plate? what was rebuilt? mileage? yr? any pretty pics? need a pin-up, i miss my baby,NSX season just starting in New Eng.
..Hey, I'm gonna be in Scottsdale Az 5/7 for a maybe I'll take a look :smile:
Or maybe it'll be on it's way already to Mass..
(have a condo there on 90th & Pima) ,how far are you?
regards,
Dennis
Thanks, that option is one I'm going to push Mitch on next wk when I hear what he finds when he drops it..very attractive, you've rebuild this one? full engine with accessories?
clutch plate? what was rebuilt? mileage? yr? any pretty pics? need a pin-up, i miss my baby,NSX season just starting in New Eng.
..Hey, I'm gonna be in Scottsdale Az 5/7 for a maybe I'll take a look :smile:
Or maybe it'll be on it's way already to Mass..
(have a condo there on 90th & Pima) ,how far are you?
regards,
Dennis
- Joined
- 19 February 2008
- Messages
- 1,532
Re: UPDATE on ..Blown Engine? Bearing? Camshaft?
Thanks, that option is one I'm going to push Mitch on next wk when I hear what he finds when he drops it..very attractive,
you've rebuild this one?
I have 3 NSX motors for sale... I would never rebuild an NSX motor back to stock... forged pistons are superior to oem cast pistons and they are cheaper to buy
here is the pricing...
http://www.nsxprime.com/forums/showthread.php?t=148093
full engine with accessories?
the one stock motor with factory sealed heads would be complete with all accessories... no clutch though... but I can include the stock flywheel
If you wanted either of the other 2.. I can piece together what you need.
what was rebuilt? mileage? yr? any pretty pics? ..
The untouched motor had 87k on it. They are wrapped in plastic and stored in the shop... I would rather show it to you person when your here than spend the time to unwrap/wrap back up for a pick.
Hey, I'm gonna be in Scottsdale Az 5/7 for a maybe I'll take a look :smile:
Or maybe it'll be on it's way already to Mass..
Meeyach just lost his motor as well... he has inquired about the stock motor as well... first to pay gets its it.(have a condo there on 90th & Pima)
how far are you?
STMPO is located on Scottsdale rd and the 202.. I live on Lincoln and Scottsdale Rd... you are 10 minutes from my home and 15 minutes from my shop
regards,
Thanks, that option is one I'm going to push Mitch on next wk when I hear what he finds when he drops it..very attractive,
you've rebuild this one?
I have 3 NSX motors for sale... I would never rebuild an NSX motor back to stock... forged pistons are superior to oem cast pistons and they are cheaper to buy
here is the pricing...
http://www.nsxprime.com/forums/showthread.php?t=148093
full engine with accessories?
the one stock motor with factory sealed heads would be complete with all accessories... no clutch though... but I can include the stock flywheel
If you wanted either of the other 2.. I can piece together what you need.
what was rebuilt? mileage? yr? any pretty pics? ..
The untouched motor had 87k on it. They are wrapped in plastic and stored in the shop... I would rather show it to you person when your here than spend the time to unwrap/wrap back up for a pick.
Hey, I'm gonna be in Scottsdale Az 5/7 for a maybe I'll take a look :smile:
Or maybe it'll be on it's way already to Mass..
Meeyach just lost his motor as well... he has inquired about the stock motor as well... first to pay gets its it.(have a condo there on 90th & Pima)
how far are you?
STMPO is located on Scottsdale rd and the 202.. I live on Lincoln and Scottsdale Rd... you are 10 minutes from my home and 15 minutes from my shop
regards,
My engine was making noise tapping sounds on the freeway then got louder and car turned off. But earlier that day check engine light was on n tcs came on along. My engine was low on oil so i got 1 quart of royal purple n left engine got quieter but hop back on freeway home from the mall engine knocked louder and lost power n car cant idle now n hard to start. Im sure internally something is messed up. Had the car tow to my shop but i dont know whats wrong. I was thinking of pulling out the engine myself n bring it to driving ambition.
Wow, engines are dropping like flies these last few days/weeks. I better be careful with mine.
Hi Angus,
Mitch says the parts for the engine rebuild are almost all there (waiting on SOS clutch). He expects the job to be done by 3rd or 4th week in July.
I really dropped the ball on this repair. I made bad decisions and regret not getting new rebuild one drop in..
Regarding STMPO, I WAS in AZ in May, stopped by his place. He must have moved earlier, sign down, nothing on door for me to try different location or new phone. I called a few times got the machine no direct line. I wish they would have told me the place was closed. At that point I had to make a judgement call...Obviously one in a list of bad choices i did..
Hope i really don't regret it when i get it back..Dennis
Mitch says the parts for the engine rebuild are almost all there (waiting on SOS clutch). He expects the job to be done by 3rd or 4th week in July.
I really dropped the ball on this repair. I made bad decisions and regret not getting new rebuild one drop in..
Regarding STMPO, I WAS in AZ in May, stopped by his place. He must have moved earlier, sign down, nothing on door for me to try different location or new phone. I called a few times got the machine no direct line. I wish they would have told me the place was closed. At that point I had to make a judgement call...Obviously one in a list of bad choices i did..
Hope i really don't regret it when i get it back..Dennis
Let us know how it comes out, hope its OK!
STMPO is still in business.
someone just bought a motor for $3k~.
http://www.nsxprime.com/forums/showpost.php?p=1442208&postcount=68
