getting more defined on the noise coming from my engine/tranny |
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getting more defined on the noise coming from my engine/tranny |
jdlmodelt |
Mar 6 2013, 07:02 AM
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#1
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
Okay...so this noise coming from the engine/tranny compartment is a repetitive almost squeaking sound at higher speeds but a rattling sound at low speeds. It's frequency is in direct relationship to the speed of the vehicle. It only occurs when the car is in gear. It is less prevalent almost in audible when the engine is under load. It is most audible when the car is coasting in gear, any gear and even more so when the car is traversing a right hand curve. If I take the car out of gear and coast there is no noise at all. I'm suspecting it is a noisy differential? Doc?
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Kaduku |
Mar 6 2013, 07:19 AM
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#2
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Member Group: Members Posts: 344 Joined: 1-January 13 From: SF Bay Area Member No.: 15,324 Region Association: None |
Could be your differential or maybe wheel bearings or both. I had the same problem with my MGB. I had the differential rebuilt and all was quiet.
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914itis |
Mar 6 2013, 08:23 AM
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#3
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Check your gear oil.
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falconfp2001 |
Mar 6 2013, 11:20 AM
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#4
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Pancho Pantera Group: Members Posts: 451 Joined: 5-December 10 From: Downey, CA Member No.: 12,456 Region Association: Southwest Region |
throw out bearing.
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jdlmodelt |
Mar 6 2013, 10:00 PM
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#5
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
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Dr Evil |
Mar 6 2013, 10:02 PM
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#6
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Send me your transmission! Group: Members Posts: 23,032 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Not TOB. Check gear oil. This is inside the gear box. Could be diff, could be a bearing in the intermediate plate has given up. Dont let this go too long. Time = money.
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jdlmodelt |
Mar 6 2013, 10:35 PM
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#7
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
Not TOB. Check gear oil. This is inside the gear box. Could be diff, could be a bearing in the intermediate plate has given up. Dont let this go too long. Time = money. Thanks Doc. I'll come up with a plan. I'll try to drain the tranny oil this weeked to see if there are indications of metal in the oil? |
Dr Evil |
Mar 6 2013, 10:42 PM
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#8
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Send me your transmission! Group: Members Posts: 23,032 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
You will have metal in the oil at baseline. It is hard to tell if it indicates anything unless chunks come out as well. Whether or not you have oil, that is the question.
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jdlmodelt |
Mar 7 2013, 08:09 PM
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#9
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
You will have metal in the oil at baseline. It is hard to tell if it indicates anything unless chunks come out as well. Whether or not you have oil, that is the question. I have lots of oil...I checked it before I reinstalled the engine/tranny 500 miles ago and then checked it again last weekend. I will drain it tomorrow...see what I have and if no metal, put in new. It made some minor sounds this morning when it was cold out and then driving home tonight I couldn't hear it at all when the temp was in the 50-60 deg F outside. |
Jeffs9146 |
Mar 7 2013, 08:40 PM
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#10
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
You will have metal in the oil at baseline. It is hard to tell if it indicates anything unless chunks come out as well. Whether or not you have oil, that is the question. (IMG:style_emoticons/default/agree.gif) When my 6 had the same symptom I pulled the trans and took it to the good DR.'s clinic at McMarks and my main pinion bearing fell out when I loosend the nut! McMarks Original Customs Trans Clinic Thread Attached image(s) |
jdlmodelt |
Mar 7 2013, 08:58 PM
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#11
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
Not TOB. Check gear oil. This is inside the gear box. Could be diff, could be a bearing in the intermediate plate has given up. Dont let this go too long. Time = money. So...I'm assuming I would have to pull the engine/tranny to get to the intermediate plate? (IMG:style_emoticons/default/sad.gif) |
Kirmizi |
Mar 7 2013, 09:02 PM
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#12
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Senior Member Group: Members Posts: 836 Joined: 12-February 06 From: Wyoming, US Member No.: 5,568 Region Association: None |
You can remove the tranny without dropping the engine. (IMG:style_emoticons/default/biggrin.gif)
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Dr Evil |
Mar 7 2013, 09:08 PM
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#13
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Send me your transmission! Group: Members Posts: 23,032 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
I never remove the engine unless it needs to come out for something else.
Yes, you need to gut the transmission to fix the bearings. |
jdlmodelt |
Mar 7 2013, 09:20 PM
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#14
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
does it come out any easier that way? Or is it easier to pull the engine and tranny as one piece? I eventually wanted to put the 1.7l with dome top pistons and the original rear shift tranny in this car since those came out of it originally and the 1.7l with the dome top pistons should put out about the same HP as the 2.0l 76 with all the smog stuff on it. Where do I get one kit with all the rear shift linkage bushings in one package? |
VaccaRabite |
Mar 7 2013, 09:24 PM
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#15
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En Garde! Group: Admin Posts: 13,553 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Leave the engine in place. Pull the trans on its own. Not that hard to do. Watched Mike do it dozens of times.
Zach |
Jeffs9146 |
Mar 7 2013, 09:27 PM
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#16
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
Other than the bolts, you only have to disconect the starter wires, ground strap, clutch and speedo cable when you pull the trans! The engine requires more wires and such!
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jdlmodelt |
Mar 7 2013, 09:29 PM
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#17
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
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jdlmodelt |
Mar 7 2013, 09:32 PM
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#18
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
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Jeffs9146 |
Mar 7 2013, 09:38 PM
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#19
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
I never remove the engine unless it needs to come out for something else. Yes, you need to gut the transmission to fix the bearings. Also, what wheel seals and input shaft seal do I need for the rear shift? You will need to get a transmission gasket kit. It includes everything for both the side shift and the rear shift! |
jdlmodelt |
Mar 7 2013, 09:40 PM
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#20
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James D. Lane Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region |
I never remove the engine unless it needs to come out for something else. Yes, you need to gut the transmission to fix the bearings. Also, what wheel seals and input shaft seal do I need for the rear shift? You will need to get a transmission gasket kit. It includes everything for both the side shift and the rear shift! where do I get a transmission gasket kit? You are saying it includes the two axle seals and the front input shaft seal? AND the shifter bushings? |
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