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| Iron mountain heads issue http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=19973 |
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| Author: | lngtail24 [ Wed Jul 13, 2011 11:46 am ] |
| Post subject: | Iron mountain heads issue |
I have a set of iron mountains on my 31 lt with approx. 50 hours on them. Has anyone had issues with them after so few hours. I did a leakdown test on mine and have some leakage out of exhaust and excessive leakage from intake! What's the problem? Possible anything I did? |
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| Author: | fowl habbit [ Wed Jul 13, 2011 11:52 am ] |
| Post subject: | Re: Iron mountain heads issue |
valves could just be loose. adjust or check and see what they are at |
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| Author: | craig [ Wed Jul 13, 2011 4:37 pm ] |
| Post subject: | Iron mountain heads issue |
Do a leak down test. |
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| Author: | lngtail24 [ Wed Jul 13, 2011 6:00 pm ] |
| Post subject: | Re: Iron mountain heads issue |
Valves are at .005 intake and exhaust. I did a leakdown test ( stated in original post) I put cylinder 1 Tdc and just to make certain took the rocker arms off my push rods. |
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| Author: | craig [ Wed Jul 13, 2011 6:03 pm ] |
| Post subject: | Iron mountain heads issue |
| Author: | BoatDR [ Wed Jul 13, 2011 6:29 pm ] |
| Post subject: | Re: Iron mountain heads issue |
| Author: | lngtail24 [ Wed Jul 13, 2011 7:21 pm ] |
| Post subject: | Re: Iron mountain heads issue |
Yeah I figured I was going to need a valve job but 50 hours on pretty expensive heads and already failing!! Not real impressed |
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| Author: | craig [ Wed Jul 13, 2011 7:23 pm ] |
| Post subject: | Iron mountain heads issue |
| Author: | lngtail24 [ Wed Jul 13, 2011 9:13 pm ] |
| Post subject: | Re: Iron mountain heads issue |
you see this all the time ie dont buy iron mountain heads??? should have done a little more research |
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| Author: | dog walker [ Wed Jul 13, 2011 9:15 pm ] |
| Post subject: | Re: Iron mountain heads issue |
| Author: | craig [ Wed Jul 13, 2011 9:26 pm ] |
| Post subject: | Re: Iron mountain heads issue |
| Author: | lngtail24 [ Wed Jul 13, 2011 9:28 pm ] |
| Post subject: | Re: Iron mountain heads issue |
thanks, appreciate the insight |
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| Author: | MaXXis85 [ Thu Jul 14, 2011 5:59 am ] |
| Post subject: | Re: Iron mountain heads issue |
We used to fix the briggs 3.5hp in ag class all the time. Take the head off put stem in a drill and put lapping compound on the valve head and spin it in the seat. Do that a few times and clean the compound off and you gotyourself a new valve seat. Im sure the same process can be done. Just dont scar the valve stem up. |
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