[DeTomaso] Pushrod guideplate adjustment?? [Re-trying to get this post.]

[Dave Londry]

No pain Will;
 that's a bonus question Will - and I haven't.
You can tell I'm used to rockershafts or direct acting.
I guess I should be able to measure the centre to centre distance of the 
studs on #8 and compare them to 2 or3 other cylinders.
(unless the pedestals were bored skewed)
I'm guessing that they're compcams magnum, everything else is,
 so for $53 for a set plus another $35 to get them here, I can just try 
a new pair.
And I'll need some hi-temp threadlock I guess.

You're right.
I'd really like to get rid of the problem without extra clanging noises.
dave

wkooiman at earthlink.net wrote:
> What about the rocker stud?  Have you verified it isn't bent?
>
> Sorry to be a pain.  I'd just hate for you to spend lots of time getting it back together only to bend something else.
>
>
> -----Original Message-----
>   
>> From: Dave Londry <davel at emspace.com>
>> Sent: Apr 5, 2010 7:11 PM
>> To: detomaso Forum <detomaso at realbig.com>
>> Subject: Re: [DeTomaso] Pushrod guideplate adjustment?? [Re-trying to get this post.]
>>
>>
>> OK I get it. Thanks guys.
>> Sounds like a "measure lots - tack once" job.
>>
>> Will & Jack
>> - both #8 rockers, all the valves and all the valve springs have been 
>> replaced.
>> The pushrods are as straight as my granite flat and I still need to move 
>> them about 0.110 closer together.
>> (but that's quite a bit less than when the bent rocker was still there)
>>
>> dave
>>
>> -------------------------------------------------------------------
>> Dave,
>>
>> I think most people actually cut the guideplates in two and retack them back together once they have the correct alignment.
>> Julian (Kift)
>>
>> ----------------------------------------------------------------------
>> Actually from that picture it looks like something is bent.  It shouldn't be off by that much.
>> (Will Kooiman)
>>
>> --------------------------------------------------------------------
>>
>> hemipanter at hemipanter.se wrote:
>>
>> Cut the guidelate in the middle and weld a washer over the connection.
>> I did this 100:eds of times.
>> Goran
>>
>> JDeRyke at aol.com wrote:
>>     
>>> rockers, guide plates and pushrods- are hardened steel and cannot be 
>>> straightened if even slightly bent. Matter of fact, if anything IS bent, throw it 
>>> away before it breaks in two and takes out the top end or worse. It may only 
>>> be a matter of visual perspective, but better to spend a couple of hours 
>>> checking than find out the hard expensive way. good luck- J DeRyke
>>> _______________________________________________
>>>   
>>> Check everything. All the parts involved- the valve stems, pivot 
>>> studs, the
>>>       
>> -------------------------------------------------------------------------------------------------------------
>>     
>>> I'm re-assembling #6143's valvetrain now and I don't see how to do
>>> guideplate adjustment.
>>>
>>> http://www.poca.com/index.php/gallery/?g2_itemId=15138
>>> The is a pre-teardown pic but it shows my question nicely.
>>>
>>> The roller-end of both intake and exhaust  need to be moved outward
>>> (from the bore centre).
>>> That means the pushrods need to be closer together.
>>> Do I put more bend  in the guideplate to do that?
>>>
>>> thanks in advance
>>> dave
>>> (never did pedestals before)
>>>
>>> --
>>> Dave Londry
>>> davel at emspace.com
>>>   
>>>       
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