I just realized that there is an input shaft seal on manual transmissions. I was wondering how often these fail. Does anyone know? When I replaced my auto trans, I didn't replace the input shaft seal and it ended up leaking after I installed everything. If the seals in the m56's don't leak, then I won't replace it.
My m56H has 120k on it.
Thanks.
0
Manual Trans Input Shaft Seal
Started by Oreo931, Dec 02 2009 09:56 PM
10 replies to this topic
#2
T5Manual850
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Posted 02 December 2009 - 10:31 PM
when i first installed my transmission, it didn't even have an input shaft seal and I didn't know about it, and right when i started driving it started leaking real bad....My friend and I had to take down the whole assembly again and put in a seal, it was a headache but still well worth it just to have a manual transmission 
I would definitely put it in a new one if it looks jarred or worn down. It's an $11 piece and comes in 2 sizes, order both sizes and use whichever one that fits and then never worry about it again. Use OEM only, DW ftw.
I would definitely put it in a new one if it looks jarred or worn down. It's an $11 piece and comes in 2 sizes, order both sizes and use whichever one that fits and then never worry about it again
. Use OEM only, DW ftw.
850T
IPD Stage III + Meth/WI MT ----- 18T angled ----- 350cc white injectors ----- s60R manifold ----- 3" OBX angled dp ----- Magnaflow HFC ----- 3" Magnaflow exhaust ----- FMIC ----- 3" open element CAI ----- 2.75" Sconeman pipe ----- 150psi 250cc Meth/WI ----- MSD Blaster SS ----- Kingsborne 8.5mm spark wires ----- Forge BOV ----- Greddy Profec B spec II EBC ----- AEM Uego Wideband ----- m56H manual ----- R clutch ----- Koni Yellow Struts/shocks ----- IPD 1.75" springs ----- IPD 25mm/22mm sway bars ----- HD endinks ----- OBX v2 Strut bar ----- 302mm BBK ----- stainless lines ----- Knocksense ----- ADR RS Mase 17"
IPD Stage III + Meth/WI MT ----- 18T angled ----- 350cc white injectors ----- s60R manifold ----- 3" OBX angled dp ----- Magnaflow HFC ----- 3" Magnaflow exhaust ----- FMIC ----- 3" open element CAI ----- 2.75" Sconeman pipe ----- 150psi 250cc Meth/WI ----- MSD Blaster SS ----- Kingsborne 8.5mm spark wires ----- Forge BOV ----- Greddy Profec B spec II EBC ----- AEM Uego Wideband ----- m56H manual ----- R clutch ----- Koni Yellow Struts/shocks ----- IPD 1.75" springs ----- IPD 25mm/22mm sway bars ----- HD endinks ----- OBX v2 Strut bar ----- 302mm BBK ----- stainless lines ----- Knocksense ----- ADR RS Mase 17"
#3
AverageVolvo
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Posted 02 December 2009 - 11:08 PM
I don't know nothing about a missing Input shaft seal 
Seriously though don't skimp, you will regret it. 11$ is worth peace of mind.
Seriously though don't skimp, you will regret it. 11$ is worth peace of mind.
96 850 (412) wagon W/2 racing seats no rear seats, ..Converted to M56h with Quaife. R clutch,Kw v2 coilovers, qbm end links,Ipd sways,strut and shock braces/ Front/rear lower Ultra racing chassis braces. Team Dynamic 17in rims 17lbs .Poly mounts on trans, engine and firewall.Porsche Bbk, Ss lines, Super Blue Ate.5mm Spacers,Rolled Fenders,R Manifold, T04E 50 trim @18psi. Divorced WG and BOV ,3in Downpipe, gutted 3in cat,2.5 tme/Ipd catback Gizzmo Ebc, 1 gallon Aem progressive Meth Injection kit. Walbro 255. Na mani W /960 plate and Na Silicone Tb hose. Boost/egr/wideband gauges dash mounted. Double Din touchscreen Nav. 12in Fosgate p3 and 2 Alpine amps/ + Cf spoiler+ V70 stuff.
#4
Oreo931
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Posted 03 December 2009 - 12:10 AM
Thanks. Just wanted to know if it was subject to leaking, or it was the kind of thing you rarely ever have to change. I'll order the part and post the part numbers here.
#5
Ihatespeedbumps
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Posted 03 December 2009 - 12:22 AM
I recently did the clutch and RMS on my T5M and I didn't do the front seal. At 230k there were no signs of leakage and I've never seen one go bad on an m56. Not impossible though. For the peace of mind it may be worth it, I just forgot about it in the process.
I will warn you there are two seals and it's a bitch to figure out which one you need.
I will warn you there are two seals and it's a bitch to figure out which one you need.
98 S70 T5M
#6
Chilled Man
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Posted 03 December 2009 - 12:24 AM
Ihatespeedbumps, on 03 December 2009 - 12:22 AM, said:
I recently did the clutch and RMS on my T5M and I didn't do the front seal. At 230k there were no signs of leakage and I've never seen one go bad on an m56. Not impossible though. For the peace of mind it may be worth it, I just forgot about it in the process.
I will warn you there are two seals and it's a bitch to figure out which one you need.
I will warn you there are two seals and it's a bitch to figure out which one you need.
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- 1998 C70 T5M for sale $3000 project car , 04R motor M66 and many other mods needs to be finished
- 1998 C70 T5M for sale $3000 project car , 04R motor M66 and many other mods needs to be finished
#7
Oreo931
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Posted 03 December 2009 - 01:13 AM
Ihatespeedbumps, on 03 December 2009 - 12:22 AM, said:
I recently did the clutch and RMS on my T5M and I didn't do the front seal. At 230k there were no signs of leakage and I've never seen one go bad on an m56. Not impossible though. For the peace of mind it may be worth it, I just forgot about it in the process.
I will warn you there are two seals and it's a bitch to figure out which one you need.
I will warn you there are two seals and it's a bitch to figure out which one you need.
I think I changed my mind then. The reason I am so hesitant is because I don't want to put the new seal in incorrectly. That happened with my RMS and I had to get that replaced. I'll check for signs of leakage, and if I don't find anything I think I'm going to leave it.
#8
7 VII 7
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Posted 03 December 2009 - 01:37 AM
How much are the seals?
Better safe than sorry IMO
Better safe than sorry IMO
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#9
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Posted 03 December 2009 - 02:04 AM
OrEo931, on 03 December 2009 - 01:13 AM, said:
Hmm...
I think I changed my mind then. The reason I am so hesitant is because I don't want to put the new seal in incorrectly. That happened with my RMS and I had to get that replaced. I'll check for signs of leakage, and if I don't find anything I think I'm going to leave it.
I think I changed my mind then. The reason I am so hesitant is because I don't want to put the new seal in incorrectly. That happened with my RMS and I had to get that replaced. I'll check for signs of leakage, and if I don't find anything I think I'm going to leave it.
Don't listen to Dave, he doesn't know an M56 from a turd.
Leave well enough alone, they were fine on the sedan at 260K and the wagon at 85K. I highly doubt you'll have issues with yours.
Matt
MY97 855 Manual swap, Porsche Brakes, 16T on LPT block and plenty of IPD parts
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#10
Oreo931
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Posted 03 December 2009 - 03:48 AM
matt b, on 03 December 2009 - 02:04 AM, said:
Don't listen to Dave, he doesn't know an M56 from a turd.
Leave well enough alone, they were fine on the sedan at 260K and the wagon at 85K. I highly doubt you'll have issues with yours.
Leave well enough alone, they were fine on the sedan at 260K and the wagon at 85K. I highly doubt you'll have issues with yours.
Thanks for your input, Matt.
#11
yangotang
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Posted 03 December 2009 - 04:52 AM
$9 list price seal from the stealership.
I've never replaced one (or ever seen one leak). I'd say if it ain't leaking don't touch it.
I've never replaced one (or ever seen one leak). I'd say if it ain't leaking don't touch it.
Alex
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