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Old 12-14-2013, 12:07 AM   #1
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Bent valve

So today I was driving, downshifted into 3rd to pass someone then when shifted into 4th I heard a clacking sound coming from my driver side head, to me and to my dad said it sounds like a bent valve so I'm going to get it checked, any reason why that would do that? Lol
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Old 12-14-2013, 01:20 AM   #2
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It could also be the sleeve on the top of the cylinder wall, if it was idling fine i bet thats what it is and that could be normal wear and tear. Im not saying thats normal, just saying it happens.
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Old 12-14-2013, 01:42 AM   #3
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Sounds like a rocker arm popped off , it's very common on 2V mustangs
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Old 12-14-2013, 11:20 AM   #4
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I'm hoping it's just a rocker arm, I'm taking it today to get it looked at, my friends pop owns a shop and does it pretty cheap, he builds mustangs, he knows what he is doing lol, I had no choice but to drive it home lastnight, how much am I looking at?
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Old 12-14-2013, 12:26 PM   #5
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Either a rocker arm or a broken valve spring.
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Old 12-14-2013, 03:10 PM   #6
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Okay, should I sent my heads out to get ported and polished too? I'm debating since I am starting a build but my funds are very limited since I'm a college student Atm, any gain from a port and polish?
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Old 12-14-2013, 03:53 PM   #7
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If your funds are limited, I'd just fix it and drive it.
Unless it IS a bent valve, the problem can likely be fixed without removing the head.
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Old 12-14-2013, 04:21 PM   #8
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Yeah idk, I'll find out on Monday, it's my daily so I'll probably just fix it for now
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Old 12-17-2013, 02:34 PM   #9
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So it looks like a blew a piston so I'm rebuilding the whole motor
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Old 12-17-2013, 02:39 PM   #10
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OUCH!!!
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Old 12-17-2013, 02:44 PM   #11
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Oh man, I've been there.... sorry to hear. I don't wish that on worst enemy.

Is the block salvageable?

Or you planning on buying a shortblock?
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Old 12-17-2013, 03:16 PM   #12
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The block is good, I'm going with all new pistons and rods bearings, all new internals
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Old 12-17-2013, 03:39 PM   #13
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Quote:
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The block is good, I'm going with all new pistons and rods bearings, all new internals
What caused the damage to the piston?
Any pics?
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Old 12-17-2013, 03:40 PM   #14
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Oh ok. You gonna rebuild it yourself? And you going with a simple rebuild or you going for more power? Lol
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Old 12-17-2013, 03:43 PM   #15
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My friends gpop is doing the rebuild, and for more power lol of course!
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Old 12-17-2013, 03:51 PM   #16
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Quote:
Originally Posted by Sonicblue11 View Post
My friends gpop is doing the rebuild, and for more power lol of course!
Oh of course! I've got two blocks and extra parts lying around, but no time to build one myself!
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Old 12-17-2013, 04:03 PM   #17
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I hear you man, it's the worst possible timing too, holiday season
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Old 12-17-2013, 04:53 PM   #18
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I hear you man, it's the worst possible timing too, holiday season
Yeah, my block parted ways with a rod one time, and it took me 5 months to get her up and running again. The entire time I had nightmares, and felt as though I had lost a family member. But nothing beats that feeling of driving her for the first tine afterwards!
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Old 12-17-2013, 04:54 PM   #19
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Lol I bet bro, it's my daily though that the thing
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Old 12-17-2013, 05:00 PM   #20
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At the time she was my DD too. I was lucky enough to have a dad who let me borrow a truck. I wish you all the best, and hope you get her back quick! Do you have any kind of expected turn around?
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Old 12-18-2013, 03:00 PM   #21
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You can't really get more power from putting new pistons and rods ..

Basic rebuild is 0.20 over
Anymore is pointless ..

All you can really do is just forge everything, new seals, bearings , gaskets to prepare for power adder
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Old 12-18-2013, 03:02 PM   #22
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Yeah I know that, once I get the car back I will be in the market for a sc
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Old 12-18-2013, 03:09 PM   #23
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Quote:
Originally Posted by Slow4V View Post
You can't really get more power from putting new pistons and rods ..

Basic rebuild is 0.20 over
Anymore is pointless ..

All you can really do is just forge everything, new seals, bearings , gaskets to prepare for power adder
Yes you can.
You raise the compression ratio if going normally aspirated and lower it a little for supercharging.
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