Hi guys. Just recently rebuilt my turbo (TD05HR), and now its not spinning at idle. I can spin it by hand, but any tiny amount of sideways pressure on the shaft makes it bind up.
I tightened the shaft nut to 80 in-lbs, which was in the lower end of the 75-100 in-lbs spec stated online.
Have I $&#$% up? Or does it just need to wear in?
(crossposted this on Toyspeed)
Turbo spin at idle - resistance
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This area is dedicated to technical discussions that don't fit into the more specific areas of the technical section and that may apply to any type of MR2. E.g. tyres, bodywork and rust repairs, lubrication etc. Please try to spell correctly because this will help people find information later if they are using search functionality. If you need assistance with your car and want to host a spanner day, please use the appropriate section of the forum: http://mr2.org.nz/phpbb3/viewforum.php?f=35 Thank you.
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Re: Turbo spin at idle - resistance
Don't know much about turbos but I Recently rebuilt my Td05. My understanding is that the shaft runs on a film of oil pressure between the two brass bushings.
So is there definitely oil pressure getting to the turbo? Could something be blocking oil flow?
Was the heat shield loose?
any bits of metal on the shaft? - I took the time to polish it, idk if it makes any difference.
Just a few ideas that might help
So is there definitely oil pressure getting to the turbo? Could something be blocking oil flow?
Was the heat shield loose?
any bits of metal on the shaft? - I took the time to polish it, idk if it makes any difference.
Just a few ideas that might help
'86 AW10 2ZZ-GTE
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Re: Turbo spin at idle - resistance
On the advice other peeps on Toyspeed, I took it for a drive. Boosts just fine, no problems so far.
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Re: Turbo spin at idle - resistance
For posterity, Ive had zero problems so far, and the shaft play is still good and tight. It still binds a little when spinning by hand, but Im not longer worried.
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Re: Turbo spin at idle - resistance
I could never get boost pressure when idling
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Current: 1992 Toyota MR2 G-Limited with Gen 4 3S-GTE + CT20B (APEXED), 2005 Toyota IST, 2008 Toyota Vanguard - 2GR!
Past: 1990 Toyota MR2 G-Limited, "Semi Parts Car" 1991 Toyota MR2 G-Limited, '91 G-Limited, '89 G-Limited, '91 NZ New MR2, '91 G-Limited, '91 GT (Parts Car), '99 Altezza 3SGE, '98 Altezza 1GFE, '88 Corolla, '96 Curren, '94 Ceres Corolla, '94 Levin, '90 Hiace Super Custom 4x4, '91 Mirage, '93 MX-6 J-Spec, '91 Familia, '91 Galant, '90 Navara, '96 Commodore, '94 Pajero, '89 Lancer, '93 Pajero, '92 Pajero, '89 Mirage, '92 Terrano, '87 Familia, '03 Colt, '91 Pajero, '91 Pajero, '97 Carib, '96 Carina, '02 Turbo Forester
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Re: Turbo spin at idle - resistance
There's a spinning turbo then there is the spinning turbo creating boost pressure. Turbo speed = boost pressure. The faster it spins, the more pressure it creates. Until your ceramic shaft gives up and throws its toys out the window and leaves them on the road behind you.ClanFever wrote:I could never get boost pressure when idling
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2000 AE111R Corolla Wagon NZ New Daily
1996 AE101R Corolla Sprint NZ New Selling Soon
1990 EP81 Starlet XL (Sold)
1990 EE90 Corolla XL (Sold)
Instagram https://www.instagram.com/sw20glimited/