"XJDano" (xjdano)
04/24/2018 at 18:44 • Filed to: 2012 Not-so-Grand Caravan, Fuck
0
10|
"XJDano" (xjdano)
04/24/2018 at 18:44 • Filed to: 2012 Not-so-Grand Caravan, Fuck | 0
| 10 |
Cam for left (front) cylinder head.
The damn van is busted.
It started with a leak down test, passed 150 on all cylinders (this was to see if front head could be replaced under warranty).
Let’s check the lifters and rockers for damage.
“Dan,
I attached a video, all of the rockers have play, that one being the worst.
I wanted to show you that rocker because it bottomed out and lightly damaged
the edge of one lobe on the exhaust cam. It’s your call on replacing that
cam, it’s just on the edge, Jeremy said most likely won’t make noise or
cause any other issues, but wanted to let you make the call. It’s hard to
say, but the wheel should just contact the center of the lobe.”
Well Damn. But the photo above is the cam and the barely scared edge. They say it may not make noise if I decide to save $197 and reuse it.
Would you reuse it?
My instincts say out with the old. Being in construction and plans call to save this or that for reuse it’s a pain in the ass and likely gets fucked up anyway and then take it out anyway, and it cost the client more money. I’d be extremely frustrated if it’s all back together and still a slight tick or noise. It’s already all the way apart and the cam is out anyway.
Thoughts?
gettingoldercarguy
> XJDano
04/24/2018 at 18:49 |
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Replace!
MM54
> XJDano
04/24/2018 at 18:58 |
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It’s already apart and out, so it’ll never be cheaper to replace. I think it’s a worthwhile $197.
AMGtech - now with more recalls!
> XJDano
04/24/2018 at 19:04 |
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Replace. That money now is cheaper than problems later.
dogisbadob
> MM54
04/24/2018 at 19:06 |
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+1
you already took it out, so you might as well replace
RacinBob
> XJDano
04/24/2018 at 19:20 |
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This is what your mechanic told you.
“It’s your call on replacing that cam, it’s just on the edge, Jeremy said most likely won’t make noise or cause any other issues, but wanted to let you make the call. It’s hard to say, but the wheel should just contact the center of the lobe.”
Assuming he knows what he is talking about, he is telling you the cam is fine and replacing it will not make a difference. But it’s your call.
This is a roller cam, if it doesn’t roll on the damaged surface, it’s like the damage does not exist. Were it me, I would do as he recommends and reuse it.
PS - We know the present cam is correct and works. Maybe the new one is correct and works, but maybe not. So that’s another reason to keep the cam you got rather than doing a new one.
Die-Trying
> XJDano
04/24/2018 at 19:23 |
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once you replace the rocker, it shouldnt touch the cam any more. the cam ought to be fine......
BUT..... if you have any worries about it, just replace it, it will be one less thing on your mind.......
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RacinBob
> XJDano
04/24/2018 at 19:27 |
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By the way, judging by the cam bearing I assume what happened is that the needle bearings have disintegrated and dispersed.
If it was a roller bearing, that is really hard steel and it tends to tear up whatever it gets tangled up with. So if that is the case, your mechanic needs to drop the pan and and go over the head with a magnet looking for stray rollers. That is what I would spend my $197 on.
shop-teacher
> XJDano
04/24/2018 at 20:15 |
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I’d replace it. That’s your family hauler, Don’t get cheap with it
HammerheadFistpunch
> AMGtech - now with more recalls!
04/24/2018 at 21:33 |
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thats been my lesson learned with these things. Low probability but high consequences mean replace once and not worry.
NKato
> HammerheadFistpunch
04/24/2018 at 22:12 |
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I concur. Replace!