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Author Topic: JPM Rocker Arms problems  (Read 3517 times)
Mkracing
Jr. Member
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Posts: 59


« on: July 14, 2014, 17:44:07 pm »

Hey Guys, hope you can help me out of this one.
I have an 2387 cc street engine, with MS230 heads, and the 5 bolt JPM rocker arms.

The engine as being rebuilt, with new cylinders, and new JPM raptor cam.
However the problems is, that the rockerarms breaks the pieces, that holds the rocker arms??

I/we can not figure out what the problem is. This is the 4 times it breakes, and it is different ones. It seems that, the metal is to hard, and cracks!??

Any help will be appreciate... both on this topic or on PM

Morten
« Last Edit: July 14, 2014, 17:49:34 pm by Mkracing » Logged
Mkracing
Jr. Member
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Posts: 59


« Reply #1 on: July 14, 2014, 17:47:48 pm »

IMAG0072.jpg
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richie
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Posts: 5687



« Reply #2 on: July 14, 2014, 18:04:34 pm »

The shafts or the blocks?
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Mkracing
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Posts: 59


« Reply #3 on: July 14, 2014, 18:08:46 pm »

The blocks Richie Sad
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richie
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« Reply #4 on: July 14, 2014, 18:30:25 pm »

Where abouts do they break?
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Mkracing
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Posts: 59


« Reply #5 on: July 17, 2014, 01:12:15 am »

Problems solved  Wink
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kafercup
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Posts: 309



« Reply #6 on: July 17, 2014, 17:05:30 pm »

What was the solution?
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Jon
Administrator
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Posts: 3214


12,3@174km/t at Gardermoen 2008


WWW
« Reply #7 on: July 18, 2014, 17:10:24 pm »

What was the problem?
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Grumpy old men have signatures like this.
spoolin70
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Posts: 605



« Reply #8 on: July 18, 2014, 18:30:31 pm »

Was there any pictures ?
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Mkracing
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Posts: 59


« Reply #9 on: July 18, 2014, 21:02:54 pm »

Pictures on the way..
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