welly Posted May 29, 2009 Share Posted May 29, 2009 2001 MT Legacy 2.5 SOHC 111,000 miles. The other day 50 miles into a 200 mile trip my clutch went in a big way. Almost no warning , slight squeeking noise, some roughness when using the clutch. Pulled over then tried to pull away again and it went with noise and acrid smoke coming out the engine bay. Diagnosis by recovery mechanic is that the release bearing has most likely gone. So I thought I would get that replaced and do the clutch parts while I was in there. However according to my Subaru dealer my car has a dual mass flywheel. On these it is normally recommended to replace the DM also if you are in the clutch anyway. However a DM flywheel is $1100 and with the rest of the clutch part and labour I am looking at a totasl in the region of $1800 for the whole job. Thahts just too much. I am prepared to replace the "standard" clutch parts including the release bearing and leave the DM flywheel. If the clutch plate still has wear left I mifght even just replace the release bearing and keep my costs down. What is everyones experience or opinion especially on replacing or not the DM flywheel. Are these parts really considered a wear and tear item? Is it easy to judge the condition of the DM flywheel? If it looks okay should I just leave it and hope it keeps going? If I can get another 2 years out the car I would be happy - thats about another 20k miles. I havent got the clutch torn down yet so not exactly sure of the full extent of the problem. Could the release bearing have broken up and damaged anything else? Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted May 29, 2009 Share Posted May 29, 2009 I've never heard of any subarus with dual mass flywheels, however that doesn't mean they don't. I however don't see why you couldn't replace the dual mass flywheel with just a normal flywheel & sprung clutch...... Quote Link to comment Share on other sites More sharing options...
CNY_Dave Posted May 29, 2009 Share Posted May 29, 2009 2001 MT Legacy 2.5 SOHC 111,000 miles.The other day 50 miles into a 200 mile trip my clutch went in a big way. Almost no warning , slight squeeking noise, some roughness when using the clutch. Pulled over then tried to pull away again and it went with noise and acrid smoke coming out the engine bay. Diagnosis by recovery mechanic is that the release bearing has most likely gone. So I thought I would get that replaced and do the clutch parts while I was in there. However according to my Subaru dealer my car has a dual mass flywheel. On these it is normally recommended to replace the DM also if you are in the clutch anyway. However a DM flywheel is $1100 and with the rest of the clutch part and labour I am looking at a totasl in the region of $1800 for the whole job. Thahts just too much. I am prepared to replace the "standard" clutch parts including the release bearing and leave the DM flywheel. If the clutch plate still has wear left I mifght even just replace the release bearing and keep my costs down. What is everyones experience or opinion especially on replacing or not the DM flywheel. Are these parts really considered a wear and tear item? Is it easy to judge the condition of the DM flywheel? If it looks okay should I just leave it and hope it keeps going? If I can get another 2 years out the car I would be happy - thats about another 20k miles. I havent got the clutch torn down yet so not exactly sure of the full extent of the problem. Could the release bearing have broken up and damaged anything else? As far as a bit of quick research can tell, if you had no problems/noises while shifting or taking off, it's still good. One telltale of a problem is a squeek during shifting. I would imagine the shop can tell you if it's broken at the moment, or not, but I can understand them being reluctant about guessing how much longer it will last. I'd do a bit of searching here and elsewhere (other subie forums) to see if this gets mentioned- if not, it's probably good for the life of the engine, if not abused. Some talk about it here: http://www.rjes.com/html/flywheel_types.html " There are four basic types of flywheels used on Subaru engines from 1990 to now. There are then multiple different interchangeable flywheels within some of the three types. Fortunately they are all interchangeable, in terms of bolting to the same design of crank flange, whether naturally aspirated or turbo, four or six cylinder, manual or automatic transmission. All standard Subaru flywheels are cast iron, with a shrink fitted steel ring gear. Steel and steel faced aluminium flywheels are available from aftermarket specialists. Naturally Aspirated Flywheels Most naturally aspirated Subaru’s have a conventional single mass flywheel. The exception is the MY00 - MY01 models which have dual mass flywheels (see below). ... " Dave Quote Link to comment Share on other sites More sharing options...
ausubaru92 Posted May 29, 2009 Share Posted May 29, 2009 Have a look at this,.. it shows how a DMF works Quote Link to comment Share on other sites More sharing options...
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