[s-cars] Occasional Smoking - continued
Cody Forbes
cody at 5000tq.com
Thu Nov 7 05:34:33 PST 2013
I very recently had a turbo failure that would smoke only occasionally. It started out as once a month or so it would smoke horribly while sitting at a stop light. It got more frequent until it was roughly 1 out of 5 times I let the engine idle for more than 10 seconds. Also on decel down hills occasionally. I initially thought it to be a sticking piston ring, but investigation proved it to be the turbo oil seal to the turbine side.
-Cody Forbes (mobile)
On Nov 7, 2013, at 3:13 AM, Brian Pleet <subscriptions at strategico.ca> wrote:
> My 90 90Q seems to know it's approaching 250k km by acting her age.
>
> For a few weeks the idle went wild, she belched (white) smoke erratically,
> she'd threaten to stall (but never did) on deceleration.
>
> Having gained my full attention, I did a compression test, followed by a
> leak down test; Head was rebuilt @ 125k, lower block is all original. I
> have a rebuild able 3B avalable for building a sleeper car.
>
> CYL COM WET DRY LOSS%
>
> - #1 9.6, 10.0 6.5 0%
> - #2 10.5 10.5 7.0 17%
> - #3 9.7 10.5 7.0 5%
> - #4 9.5 10.0 6.5 0%
> - #5 9.7 10.5 7.00 0%
>
> Cleaned the ISV, replaced the O2 sensor, cleaned air filter, replaced the
> rotor and cap and put it all back together. For the past 3 days she's been
> purring...except
>
> The plugs are covered with a black dry soot and it smells of hydrocarbons.
> On occasion, if I watch in the mirror, I can cover the car behind in white
> smoke (like James Bond) If I measured mileage it appears to be down. Oil
> consumption is a little elevated.
>
> She's giving me hints but I can't talk to her (blink test says she's fine)..
>
>
> Suggestions?
>
>
> Brian
> 90 90Q
> 95,5 URS6
> 09 TT on the way
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