Snap Ring Specs

Mirroredshades

Mirroredshades

Experienced Member
Joined
12 October 2004
Messages
1,381
Location
NC
I'm positive I have read it here before but I can't find the EXACT measurements of the snap ring problem. What is the housing measurement supposed to measure and how far out did it go? My car is at the dealership and the trans is out. I would like to throw some calipers on it and know definitively if I need to get the housing or not.
 
You would not be able to measure the tolerance in question unless your tranny is disassembled. It is an internal tranny case specification. Simply having it uninstalled from the engine is of no help. The s/n range is your best reference.
 
This specification is N/A. The fact is the groove width is not the issue. Go to the FAQ here and read on the snap-ring. I will be back later and can give you some details on the parts:).

Regards,
LarryB
 
Mirroredshades said:
Yep. My trans is in the range and I have the case off. It *looks* okay to me but I don't know how much play is too much.

Anyone know where I can order a housing from asap? My dealer is telling me $950 and several people on here have said $700.
Click to expand...

They always look 'normal' untill the moment they go 'snap'
If its off, and you're sure its not been replaced, replace it now.

MB
 
Larry Bastanza said:
This specification is N/A. The fact is the groove width is not the issue. Go to the FAQ here and read on the snap-ring. I will be back later and can give you some details on the parts:).

Regards,
LarryB
Click to expand...

I am an engineer. I like to base my decisions on fact. I fully undrestand the dynamics of the interaction between a snap ring and it's seating. What I don't know is the specs of a properly machined housing. I know I have seen it on this site but couldn't find it in the FAQ or in a search. Any thoughts?
 
Frankly, neither does any of us like not working from facts, OR do we have them. I have done some extensive investigation, a few years ago, with the colaboration of NSXTECH including developing a jig to measure the play, tested several cars, etc.

Since the issue is NOT the groove width, and a machining defect is in regard to the chamfer at the edge of the groove, for which there is no published spec, except maybe on some engineering drawing in Japan, the info in for all practical puposes N/A.

The FAQ provides all the details on this issue in depth. Seartch on snapring, then buy a case half, rebuild it back to proper specs and go back to driving your car.

Sorry I do not have any more to offer.

Regards,
LarryB
 
Mirroredshades said:
I am an engineer. I like to base my decisions on fact. QUOTE]

I am an engineer as well, and have often thought about this issue. If a particular transmission within snap ring range has survived X miles under moderate abuse before the snap ring destructed (or hasn't yet destructed), then it should be able to survive another X miles with a NEW REPLACEMENT snap ring before it too fails under similar circumstances due to the cyclic loading and fatigue.

In my case, I have a daily-driver '92 with ~68k miles and it is in snap ring range. It also has the original clutch which needs to be replaced.

When I have the clutch replaced, I will just go ahead and fix the issue (new upper tranny case or a whole new tranny) instead of putting back together a vehicle knowing there could be a problem (even with a new snap ring). Why go through all the time and expense you already have done and not completely eliminate the issue?
Click to expand...
 
"chaps my ass "

LOL.......

Why would you pay$3K for a clutch foir a pre97 NSX??

Curious,
LarryB
 

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