Another wiped Cam but a bit different! - Page 5 - LotusTalk - The Lotus Cars Community
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post #81 of 287 (permalink) Old 02-20-2009, 05:56 AM
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Quote:
Originally Posted by vao4v View Post
Yes, sorry about the cams, guys.

If it happens to me I might try one of the shops that the NASCAR guys use to heat treat, cryo, special coating, ??? to the new cams before replacing. Wonder if anyone has done it yet? Has anyone tested the failed cams for improper metallurgy?
It's very probably that SOMEONE has. But probably not any of us owners that I know of. I'm thinking along the lines of some engineer at Lotus. They keep their mouth shut, but it seems they would surely want to find out what's going on. I know after they replaced my engine they took the broken one home with them.

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post #82 of 287 (permalink) Old 02-20-2009, 08:38 AM
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I'm assuming you're talking about replacing cams and lifters?

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Sorry to read the news... the good news is that the parts are cheap and not too tough to replace should you choose to do the work yourself.... Just buy the bits from Toyota- cost about 200 bucks...

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post #83 of 287 (permalink) Old 02-20-2009, 09:28 AM
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I'm assuming you're talking about replacing cams and lifters?
Yes, the lifters/rockers come with the new cam as a set. If you were to install a new cam without replacing the used lifters/rockers, it would not bed in correctly and you would just get to the job all over again in the near future.
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post #84 of 287 (permalink) Old 02-20-2009, 12:40 PM
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Good to know. Obviously, if the cam lobes are scored, the lifters can't be in good shape. I was wondering if Phil was saying total cost for parts would be around $200 as I'm used to working on BMWs with Shrick cams where they provide just the cams.

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Yes, the lifters/rockers come with the new cam as a set. If you were to install a new cam without replacing the used lifters/rockers, it would not bed in correctly and you would just get to the job all over again in the near future.

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post #85 of 287 (permalink) Old 02-20-2009, 12:53 PM
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Good to know. Obviously, if the cam lobes are scored, the lifters can't be in good shape. I was wondering if Phil was saying total cost for parts would be around $200 as I'm used to working on BMWs with Shrick cams where they provide just the cams.
If you purchase the parts through Toyota, $200-$300 is about the right price for the cam with lifters/rockers so it isn't nearly as expensive as it could be. These should be the only parts you need unless the engine was run to the point of rocker arm failure which could cause damage to the intake valve. The rocker shafts seem to be very durable and show little to no wear so they can almost always be reused.

Last edited by tesprit; 02-20-2009 at 12:59 PM.
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post #86 of 287 (permalink) Old 02-20-2009, 02:50 PM
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When my rocker arm broke, I was quoted $510 for the set by my local Toyota dealer.
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post #87 of 287 (permalink) Old 03-07-2009, 05:33 AM
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Update

I picked up the repaired Elise from the Lotus dealer yesterday with a new intake cam and rockers. Lotus covered the entire worn cam replacement under warranty. Man that was a relief!

Now I just have to figure out how to keep it from happening again.

Dave

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post #88 of 287 (permalink) Old 03-08-2009, 02:05 PM
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I picked up the repaired Elise from the Lotus dealer yesterday with a new intake cam and rockers. Lotus covered the entire worn cam replacement under warranty. Man that was a relief!

Now I just have to figure out how to keep it from happening again.

Dave
Just added you to this thread: https://www.lotustalk.com/forums/f25/...ml#post1235772

If you want to post your year and mileage, I will update it accordingly so we can get more data points.

Seems as though Lotus must have realized that there is a problem and is now warranting these on a regular basis as the relative silence is deafening.
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post #89 of 287 (permalink) Old 03-08-2009, 02:16 PM
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any '07+ cars affected?

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post #90 of 287 (permalink) Old 03-08-2009, 04:17 PM
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I don't think I've heard of one yet. Maybe one, not sure...

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #91 of 287 (permalink) Old 03-08-2009, 05:38 PM
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So what is the update - how many LT owners have reported a cam problem?

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post #92 of 287 (permalink) Old 03-08-2009, 05:48 PM
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Icedog_16,

Requested info is in post #74 of this thread with pics of the failure.

Dave

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post #93 of 287 (permalink) Old 03-09-2009, 09:47 AM
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Icedog_16,

Requested info is in post #74 of this thread with pics of the failure.

Dave
Got it and updated it. Thanks!
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post #94 of 287 (permalink) Old 03-09-2009, 09:51 AM
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I don't think I've heard of one yet. Maybe one, not sure...
Based on the list, I don't think there's a big problem with '07+s.
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post #95 of 287 (permalink) Old 03-09-2009, 09:52 AM
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So what is the update - how many LT owners have reported a cam problem?
I've got ~30, plus various anecdotal cases mentioned by people here and on other sites.
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post #96 of 287 (permalink) Old 04-01-2009, 04:42 PM
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any trouble w/ replacement toyota cams

seeing lots of these cams are going bad because of faulty hardening- my question is: are the replacement factory toyota cams hardened properly? has anybody who replaced theirs already having the same issue again? what a pain for all us elise owners. lotus/toyota should replace all of them and be done w/ it. i am having a tappet noise, that is not consistant, now and then. wonder if mine is now gone, too? my car is a 05 w/ 5,000 miles on it, all road use. anybody who has had the problem had a tappet noise intermittently? thanks!!
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post #97 of 287 (permalink) Old 04-02-2009, 06:37 AM Thread Starter
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Just gotta pull the cover and have a look. 15 minute job to take a peak... The intake cam phaser make some rattling noise from time to time that has nothing to do with tha cam wiping problem, FWIW... that may be what you're hearing...

Best,

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post #98 of 287 (permalink) Old 04-02-2009, 08:42 AM
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i think one person had this problem come up once or twice after the original cam was replaced.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #99 of 287 (permalink) Old 04-07-2009, 05:25 PM
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could you elaborate on the intake phaser? there is no other information i can find. the tappet noise comes and goes, always after car warms up, funny- it never did it until i installed a katana supercharger. i suspected the ecu was giving the cam a signal or something. any help is appreciated.
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post #100 of 287 (permalink) Old 03-08-2010, 01:52 PM
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Quote:
Originally Posted by turbophil View Post
Sorry to read the news... the good news is that the parts are cheap and not too tough to replace should you choose to do the work yourself.... Just buy the bits from Toyota- cost about 200 bucks...

Best of luck,

Phil
So when I talk to the friendly parts folks. I ask for a Celica GTS intake cam for the same model year as my Elise?

(Intake Cam 1&4 BTW)
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