What is this gap?, And why would it be dripping fluid? |
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What is this gap?, And why would it be dripping fluid? |
mjsdt914 |
Sep 21 2022, 09:24 AM
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#1
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
This gap is at the front of the transmission where it mates with the engine (as seen from below).
Does it have a name? Am I missing a plug for this hole? Any ideas why it would be dripping fluid? Please advise. Thanks! Attached image(s) |
930cabman |
Sep 21 2022, 09:36 AM
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#2
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Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
can you identify if it's engine oil or transmission oil?
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emerygt350 |
Sep 21 2022, 09:39 AM
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#3
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Advanced Member Group: Members Posts: 2,087 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
I mean, the real problem here is that you have too few leaks by the look of it. Get some road dust and half a quart of oil smeared across there and you won't even notice something like that.
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mjsdt914 |
Sep 21 2022, 09:42 AM
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#4
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
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mjsdt914 |
Sep 21 2022, 09:44 AM
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#5
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
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mgphoto |
Sep 21 2022, 09:48 AM
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#6
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"If there is a mistake it will find me" Group: Members Posts: 1,338 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
This gap is at the front of the transmission where it mates with the engine (as seen from below). Does it have a name? Any ideas why it would be dripping fluid? Please advise. Thanks! Flywheel seal, or transmission main shaft seal, transmission oil has a very distinctive smell, open the transmission fill, put in your finger, bring out a dab of oil, smell that, use a different finger for the leak, smell that, different or the same, you have your answer. |
rhodyguy |
Sep 21 2022, 10:10 AM
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#7
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,072 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Either way, you have a leak that will require removing the transmission. At a minimum. I would bite the bullet and remove the drivetrain. Beware the onset of project creep.
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930cabman |
Sep 21 2022, 12:34 PM
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#8
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Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
This gap is at the front of the transmission where it mates with the engine (as seen from below). Does it have a name? Any ideas why it would be dripping fluid? Please advise. Thanks! Flywheel seal, or transmission main shaft seal, transmission oil has a very distinctive smell, open the transmission fill, put in your finger, bring out a dab of oil, smell that, use a different finger for the leak, smell that, different or the same, you have your answer. Exactly, tranny oil is stinky, engine oil not so How bad is she leaking? |
davep |
Sep 21 2022, 01:01 PM
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#9
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914 Historian Group: Benefactors Posts: 5,137 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
Your friction disc can be ruined by oil, not to mention the potential for slipping. Did you use synthetic oil during the changes? That could had led to the problem.
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mlindner |
Sep 21 2022, 03:15 PM
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#10
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Senior Member Group: Members Posts: 1,516 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest |
How much is it dripping, I'm not sure i would do anything yet. Mark
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DRPHIL914 |
Sep 21 2022, 04:06 PM
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#11
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Dr. Phil Group: Members Posts: 5,766 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
sometimes its hard to smell the trans fluid. You can add a dye, get it from autozone or other favorite local parts place along with the UV light . I had a similar issue not long ago, was not sure as i had just put the transmission back in after putting a new rear main seal in the engine, and after a couple months noticed a small drip here so i put dye in the trans fluid(suspecting this due to just putting new RMS on motor) . if you suspect oil, put the dye in the motor oil and run it for a few hours and recheck with UV light. - as said by others, if the oil is leaking from the rear main seal it will get on the clutch and make a mess of it - when you pull it you will be able to see if it is leaking from the trans or the motor. - or both - thats possible too. What is the history of the motor? how many miles, how long have you owned it? the hole is there so that you can see the flywheel for timing, dont plug it. if the car sits for long long periods or sat for years, the seals will dry , deteriorate and leak. You can pull the transmission and leave the motor in, but i have found its easier to just pull them all as one unit. If you have not done this, there are good how-to instructions on Pelican Parts website, with pictures. Good luck Phil |
JamesM |
Sep 21 2022, 05:31 PM
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#12
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Senior Member Group: Members Posts: 1,895 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
This gap is at the front of the transmission where it mates with the engine (as seen from below). Does it have a name? Am I missing a plug for this hole? Any ideas why it would be dripping fluid? Please advise. Thanks! Are you actually getting a drip of fluid on the ground or are you just observing the blackness on the case below the hole? If there is nothing on the ground under the car I wouldn't worry about it, above that hole is your clutch so there will always be some level of black dust existing there. If you are getting liquid on the ground then its either the trany or engine seal there. |
fixer34 |
Sep 21 2022, 08:33 PM
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#13
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Senior Member Group: Members Posts: 1,079 Joined: 16-September 14 From: Chicago area Member No.: 17,908 Region Association: Upper MidWest |
sometimes its hard to smell the trans fluid. You can add a dye, get it from autozone or other favorite local parts place along with the UV light . I had a similar issue not long ago, was not sure as i had just put the transmission back in after putting a new rear main seal in the engine, and after a couple months noticed a small drip here so i put dye in the trans fluid(suspecting this due to just putting new RMS on motor) . if you suspect oil, put the dye in the motor oil and run it for a few hours and recheck with UV light. - as said by others, if the oil is leaking from the rear main seal it will get on the clutch and make a mess of it - when you pull it you will be able to see if it is leaking from the trans or the motor. - or both - thats possible too. What is the history of the motor? how many miles, how long have you owned it? the hole is there so that you can see the flywheel for timing, dont plug it. if the car sits for long long periods or sat for years, the seals will dry , deteriorate and leak. You can pull the transmission and leave the motor in, but i have found its easier to just pull them all as one unit. If you have not done this, there are good how-to instructions on Pelican Parts website, with pictures. Good luck Phil "the hole is there so that you can see the flywheel for timing, dont plug it." I've never heard of a timing window on the bottom of the engine. Just what timing mark on the flywheel do you use? I believe it is for ventilation and a liquid drain, as you are seeing with engine/trans oil. |
Dave_Darling |
Sep 22 2022, 03:01 AM
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#14
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
There is often a TDC mark on the edge of the flywheel. It shows TDC for #1 and #3 through the notch on top of the transmission bellhousing, and TDC #2 and #4 through the notch on the bottom of the bellhousing shown here.
I don't know if that was its intended use, though. --DD |
JamesM |
Sep 22 2022, 10:39 AM
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#15
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Senior Member Group: Members Posts: 1,895 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
"the hole is there so that you can see the flywheel for timing, dont plug it." I've never heard of a timing window on the bottom of the engine. Just what timing mark on the flywheel do you use? I believe it is for ventilation and a liquid drain, as you are seeing with engine/trans oil. Sure makes valve adjustments a lot easier having a window there (IMG:style_emoticons/default/confused24.gif) |
mjsdt914 |
Sep 22 2022, 01:29 PM
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#16
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
This gap is at the front of the transmission where it mates with the engine (as seen from below). Does it have a name? Any ideas why it would be dripping fluid? Please advise. Thanks! Flywheel seal, or transmission main shaft seal, transmission oil has a very distinctive smell, open the transmission fill, put in your finger, bring out a dab of oil, smell that, use a different finger for the leak, smell that, different or the same, you have your answer. Exactly, tranny oil is stinky, engine oil not so How bad is she leaking? Not 'leaking' nor leaving a puddle ... more like 'dripping' a few drops ... noticed after I started to clean the undercarriage. |
mjsdt914 |
Sep 22 2022, 01:32 PM
Post
#17
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
This gap is at the front of the transmission where it mates with the engine (as seen from below). Does it have a name? Am I missing a plug for this hole? Any ideas why it would be dripping fluid? Please advise. Thanks! Are you actually getting a drip of fluid on the ground or are you just observing the blackness on the case below the hole? If there is nothing on the ground under the car I wouldn't worry about it, above that hole is your clutch so there will always be some level of black dust existing there. If you are getting liquid on the ground then its either the trany or engine seal there. Not 'leaking' nor leaving a puddle ... more like 'dripping' a few drops ... noticed after I started to clean the undercarriage ... not terribly concerned yet as it may be left over gunk ) |
mjsdt914 |
Sep 22 2022, 01:44 PM
Post
#18
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
sometimes its hard to smell the trans fluid. You can add a dye, get it from autozone or other favorite local parts place along with the UV light . I had a similar issue not long ago, was not sure as i had just put the transmission back in after putting a new rear main seal in the engine, and after a couple months noticed a small drip here so i put dye in the trans fluid(suspecting this due to just putting new RMS on motor) . if you suspect oil, put the dye in the motor oil and run it for a few hours and recheck with UV light. - as said by others, if the oil is leaking from the rear main seal it will get on the clutch and make a mess of it - when you pull it you will be able to see if it is leaking from the trans or the motor. - or both - thats possible too. What is the history of the motor? how many miles, how long have you owned it? the hole is there so that you can see the flywheel for timing, dont plug it. if the car sits for long long periods or sat for years, the seals will dry , deteriorate and leak. You can pull the transmission and leave the motor in, but i have found its easier to just pull them all as one unit. If you have not done this, there are good how-to instructions on Pelican Parts website, with pictures. Good luck Phil Motor rebuild ten years ago with about 15K on it now. Was stored for a few years with monthly starts and short drives. Not 'leaking' nor leaving a puddle ... more like 'dripping' a few drops ... noticed after I started to clean the undercarriage. After wiping everything off again, let it sit for a few hours...no drips. Started and idled for 30 minutes, then let sit over night...no drips. Its raining today (we don't go out in the rain). Tomorrow is a slow speed tour of the neighborhood (don't want any blow back) followed by another overnight sit to see what, if anything drips. Thanks for your input! |
Van B |
Sep 22 2022, 08:35 PM
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#19
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Senior Member Group: Members Posts: 1,582 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None |
100%, without a doubt, no debate, you have a leak on your rear main seal. A common wear item. If it was the transmission seal, you would see the fluid follow the path of the bell housing, not on the engine case.
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mjsdt914 |
Sep 23 2022, 09:54 AM
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#20
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Newbie Group: Members Posts: 27 Joined: 10-August 21 From: Whitefish, Montana 59937 Member No.: 25,791 Region Association: Rocky Mountains |
100%, without a doubt, no debate, you have a leak on your rear main seal. A common wear item. If it was the transmission seal, you would see the fluid follow the path of the bell housing, not on the engine case. Sounds like the voice of experience (which I lack regarding this issue). Since I have only small drips, any thoughts on trying a rear main sealer (thinking Blue Devil)? Please advise. Thanks! |
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