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Underbody braces, turbos and more!

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PostPosted: Mon Aug 02, 2004 9:10 pm 
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Joined: Mon Aug 02, 2004 9:01 pm
Posts: 1
Location: Whitby, ON
Hi all,

Great forum! I have a question.
I'm bought my girlfriend a '91 Chev. Sprint Convertable for her birthday. It has 191, 000 KM on the vehicle. The body is in great shape. I guess my question/concern for you is... with this car being a 3 banger, how long to the engines last?

If it did go quickly, is expensive to do a engine swap?

Any input would greatly be apprecitated!

Thanks,

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Brian


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PostPosted: Wed Aug 04, 2004 10:34 pm 
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Joined: Tue Aug 03, 2004 3:25 pm
Posts: 46
Location: Calgary, Alberta
These engines last longer than the rest of the car.

Although I cannot specifically comment on the non-turbo versions, I have had two 1989 Turbo Sprints. The first, had 330,000 Kms and the second has 250,000. In both cases, the engine is still strong, burns no oil and does not dirty the oil any sooner than ever. The turbos do get weaker over time; by 330K, it wasnt boosting much at all.

In short, the engines last a long, long, long, time. The doors will fall off before the engine fails. (Seriously! On both Sprints, I have had trouble with the door hinges pulling away from the subframe of the car they are bolted to. The bolt holes pull out of the thin metal. You need to weld those up. Keeping the door hinges well lubricuated helps, and never letting the door swing open hard to the stops)


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PostPosted: Thu Aug 05, 2004 2:07 pm 
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Joined: Tue May 07, 2002 10:55 am
Posts: 383
Location: Cobble Hill, B.C.
The MKII non-turbo 3 bangers ('89-'91) are somewhat prone to burning valves. I read somewhere that this has something to do with the design of the valve cover, which was supplied by GM interestingly. The valve cover was redesigned by Suzuki for '92 and onwards which supposedly eliminated the problem.


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PostPosted: Thu Aug 05, 2004 10:15 pm 
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a.k.a Bum head
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Joined: Mon May 31, 2004 5:29 pm
Posts: 3157
Location: London, ON
Bosco wrote:
The MKII non-turbo 3 bangers ('89-'91) are somewhat prone to burning valves. I read somewhere that this has something to do with the design of the valve cover, which was supplied by GM interestingly. The valve cover was redesigned by Suzuki for '92 and onwards which supposedly eliminated the problem.


Burning valves, yes. Happened twice on my '89 NA 1.0l engine. Once at 100k and again around 200k. Saw an actual tech bulletin from GM/Suzuki at the machine shop that stated 10W30 was the only recommended oil for our hydraulic head equipped Mk2 engines. There was a more in-depth explanation for the choice of oil, and I think it went something like this: the oil pressures needed to operate the hydraulic lifters varied to the extremes when heavier/lighter oils were used. Might have had something to do with the size of the passageways supplying the lifters with oil. (Feel free to correct me...)

I think the valve cover change was more of a problem-solving solution to the PCV system sucking oil all of the time. Oil would splash up from the cam and get fired into the intake manifold/air cleaner much more often until they added the bump and internal shield to the NA valve cover. (Huge clouds of blue smoke on hard acceleration weren't uncommon after oil changes.) The Mk2 1.0l turbo engines came with the 'new' design at the beginning of the run in '89... no doubt 'cause it was a completely Suzuki engine.


Chris

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Good stuff for sale!

viewtopic.php?f=15&t=42901&start=0


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PostPosted: Fri Aug 06, 2004 3:18 am 
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Location: Vancouver, BC
Previous threads on GTi shopping (pay attention to info on looking for rust):
http://www.teamswift.net/viewtopic.php?t=6091
http://www.teamswift.net/viewtopic.php?t=8927&start=0&postdays=0&postorder=asc

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maybe a picture Thanks


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