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[email protected]
Samba Member
Joined: August 08, 2011
Posts: 3
Location: newzealand
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 Posted: Sat May 06, 2023 3:41 pm Post subject: 66 splitie motor problem |
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we decided to upgrade my splitie motor with empi heads with little bit bigger valves and they had longer and stronger springs. the motor lasted a few hours and gave out. 2 pushrods were bent and off the rockers and keepers went off but recovered. rebuilt again with better rockers and rods. this time lasted only a couple of hours and 2 or 3 lobes on the cam went flat.
i am really getting tired of this, does anyone know why it is hapening? we are planing to replace with a new cam 100 one with new lifters and replace the springs with new stock ones. what do you think this may solve the problem?
Many thanks, ron new zealand |
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BarryL 
Samba Member
Joined: November 01, 2004
Posts: 14257
Location: Casa de Oro, California
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| Posted: Sat May 06, 2023 6:37 pm Post subject: Re: 66 splitie motor problem |
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Those are a big change and put considerable pressure on the lifters and cam lobes. |
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[email protected]
Samba Member
Joined: August 08, 2011
Posts: 3
Location: newzealand
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| Posted: Sat May 06, 2023 7:11 pm Post subject: Re: 66 splitie motor problem |
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| do you think the stock springs will solve the problem? |
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David Raistrick
Samba Member
Joined: January 26, 2004
Posts: 539
Location: Geneva, Florida
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| Posted: Sun May 07, 2023 6:54 am Post subject: Re: 66 splitie motor problem |
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this is probably a better question for the engine group at https://www.thesamba.com/vw/forum/viewforum.php?f=12 to be fair.
I'd recommend providing full detail on the engine build - bore/stroke, what cam, what lifters, what rockers, what pushrods, what heads, what valves, what springs...... what was the _old_ combination, how long had it been run, what is the _new_ combination. how was break-in done?
_________________
...david - '66 SO-44 #231 |
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