dangerous brain Posted July 30, 2007 Share Posted July 30, 2007 My T61 turbo bearings are on their way out. Its not critical yet but I really don't know how long bearings last when they show signs of wear. Thing is my tubbie is an old bugger and has an exhaust side output of the four bolt type not the 3" V-band clamp type which is making my choice difficult as I have not seen many turbo's in that configuration--Basically I think I have seen one. Now I have on my list a couple of alternatives Take mine off, open it up and try and change the bearings myself (absolute recipe for disaster) Take mine off, take it to a specialist and get them to change the bearings in it and risk them upping the damage report beyond the turbo's value. Both of these options cost me time and the winter is rapidly approaching with me already losing 2 months of the good weather. So I looked at trusty old ebay and came up with a couple of options. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=130092836464&ssPageName=STRK:MEWA:IT&ih=003 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=015&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=250146223876&rd=1 http://cgi.ebay.co.uk/Garrett-Turbo-GT4088-Journal-Bearing-Special_W0QQitemZ130092825450QQihZ003QQcategoryZ72205QQrdZ1QQssPageNameZWD1VQQcmdZViewItem These people have adaptors and stuff as well http://cgi.ebay.com/ebaymotors/GARRETT-60-1-T04S-TURBO-T4-T04-T04R-V-Band-TURBOCHARGER_W0QQitemZ190128458712QQihZ009QQcategoryZ33742QQrdZ1QQssPageNameZWD1VQQcmdZViewItem Then theres the on board stuff which seem like complete bargains also. http://www.mkivsupra.net/vbb/showthread.php?t=119248 http://www.mkivsupra.net/vbb/showthread.php?t=116743 Now all the options are starting to dazzle me a bit. First up if I go with a replacement does that mean I have to swap my downpipe or have the flange cut off it and a V-band flange welded on. For longevity am I better off buying a DBB turbo? The one that most interests me I have to say is Terries at the mo closely followed by the T67dbb. I need to make my mind up if I'm going to have terries as at that price it won't sit around waiting for me to make my mind up. Some help here fellas please Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 ER bump somebody must be able to contribute some constructive comments here??? Quote Link to comment Share on other sites More sharing options...
Robert Posted August 1, 2007 Share Posted August 1, 2007 I would personally buy the one terry has for sale.It will be perfect for your set up although if you want more power than you have now i'd got for something like a t67 DBB Quote Link to comment Share on other sites More sharing options...
Pig Posted August 1, 2007 Share Posted August 1, 2007 I was considering the HKS GT28-35's. Not cheap though. It gunna take me a while to save for those puppies! Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 1, 2007 Share Posted August 1, 2007 My contribution would be - don't even think about replacing the bearings by yourself Any turbo work unfortunately needs to be done by a place dedicated to them with the funky balancing machines. Terry's T61 looks like a good option -Ian Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 I would obviously get the turbo balanced post putting it back together if I did the bearings myself. After all I push bearings in and out all day at work so that part can't be all that hard for me. The balancing is not going to be cheap though so I am kind of put off that option. My thoughts so far are get terries for the least hassle. But part of me that is tight as a nuns chuff says use this situation to upgrade a bit to a t67 or gt4088. Problem is that area is a murky place for me as I don't know what I am doing or getting into. Quote Link to comment Share on other sites More sharing options...
SimonR Posted August 1, 2007 Share Posted August 1, 2007 Do you have the relevant information on the spool characteristics of those different turbos in comparison to your own? I'm guessing that the 4088 will be a bit different to the T61 for example. Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 1, 2007 Share Posted August 1, 2007 I would obviously get the turbo balanced post putting it back together if I did the bearings myself. After all I push bearings in and out all day at work so that part can't be all that hard for me. The balancing is not going to be cheap though so I am kind of put off that option. Ah, sorry, forgive me, I'm obviously too used to people being idiots I thought you meant you'd swap it and bung it straight back on the car because let's face it there are probably people out there who would do that... -Ian Quote Link to comment Share on other sites More sharing options...
JohnA Posted August 1, 2007 Share Posted August 1, 2007 .... Take mine off, open it up and try and change the bearings myself (absolute recipe for disaster)... Why? Changing the bearings yourself could be much simpler than you think, I've done it in the past (smaller bike turbo, but it shouldn't be much different) and I didn't have *that* many tools at the time. An old trick is to use correction fluid (blanco) to mark the compressor's location relative to the shaft. When you put it back together it will be the same as before (no better though!) Cleaning-wise when the bits are spread on the table obviously you refrain from using abrasives to clean anything, just soaking in carbcleaner (or whatever) and mild working with a brush. If you have found a rebuilding kit for that turbo, you may as well go for it. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 Do you have the relevant information on the spool characteristics of those different turbos in comparison to your own? I'm guessing that the 4088 will be a bit different to the T61 for example. I understand that the T61 and 4088 spool different and yes will need a remap but the 4088 is a newer design of turbo than the one I have and from what I am hearing spools a bit quicker than my old unit. It has the added bonus of handling more power at some point as well. Ah, sorry, forgive me, I'm obviously too used to people being idiots I thought you meant you'd swap it and bung it straight back on the car because let's face it there are probably people out there who would do that... -Ian ER YEAH there actually is so I won't take your comment personally Why? Changing the bearings yourself could be much simpler than you think, I've done it in the past (smaller bike turbo, but it shouldn't be much different) and I didn't have *that* many tools at the time. An old trick is to use correction fluid (blanco) to mark the compressor's location relative to the shaft. When you put it back together it will be the same as before (no better though!) Cleaning-wise when the bits are spread on the table obviously you refrain from using abrasives to clean anything, just soaking in carbcleaner (or whatever) and mild working with a brush. If you have found a rebuilding kit for that turbo, you may as well go for it. The problem I have with DIY is this--The seal and bearing kit is going to be a PITA to find and I have no doubt going to hit £100 or more. The balancing is from initial pricing also going to hit £100 or more. If I for instance buy a seal kit and then snap the shaft trying to get a seemingly welded nut off I am then in a predicament of further expenditure or buy a new turbo but I am another week or so down the line. I haven't found a seal and bearing kit yet either. I need to make my mind up about what I am doing. Has anyone heard anything good or bad about this ballistic power company that I am seeing on ebay? Quote Link to comment Share on other sites More sharing options...
JohnA Posted August 1, 2007 Share Posted August 1, 2007 alternatively you could use this as an excuse to swap for a later-generation turbo Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 alternatively you could use this as an excuse to swap for a later-generation turbo A what?? Don't confuse me more than I already am Quote Link to comment Share on other sites More sharing options...
dandan Posted August 1, 2007 Share Posted August 1, 2007 But the T61 Terry has for sale and ask him if he can help you out with a downpipe... Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 I doubt the downpipe for a supra would fit my aristo chap. If I don't figure out the tonnes of available information on what to expect from a t67 dbb or a gt4088 and what I should be looking a/r wise on both exhaust and compressor by sunday I will be forced to just buy a t61 and do a straight swap as I need to go collect the car and new turbo the following friday. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted August 1, 2007 Author Share Posted August 1, 2007 http://cgi.ebay.co.uk/Garrett-Turbo-T04Z-Turbocharger-HKS_W0QQitemZ130139788856QQihZ003QQcategoryZ72205QQrdZ1QQssPageNameZWD1VQQcmdZViewItem this turbo does anybody know anything at all about it or its supplier? Quote Link to comment Share on other sites More sharing options...
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