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250 tbs blower causing issues …?
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DRR Sportsman
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So I strap the blower on on my 582 combo that has probably over 1500 passes in n/a mode with the reg. Maintenance over the years 1000 hp stuff nothing exotic . I put new valves springs pac 1224 as I do every other year and go to chassis dyno . Made good power .11 pulls 1225 hp all good . Take it to the track and it’s burning up pushrod tips on the rockers ? Changed the first one then did another burnout and burned another 2 on different hole . Why would it be doing that same cam same rpm etc ,would the quicker acceleration that the blower makes require more spring pressure ? Have my pushrods come to the end of their life cycle ?
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR Pro
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quote:
Originally posted by abitz:
So I strap the blower on on my 582 combo that has probably over 1500 passes in n/a mode with the reg. Maintenance over the years 1000 hp stuff nothing exotic . I put new valves springs pac 1224 as I do every other year and go to chassis dyno . Made good power .11 pulls 1225 hp all good . Take it to the track and it’s burning up pushrod tips on the rockers ? Changed the first one then did another burnout and burned another 2 on different hole . Why would it be doing that same cam same rpm etc ,would the quicker acceleration that the blower makes require more spring pressure ? Have my pushrods come to the end of their life cycle ?


Is it just on the exhaust pushrods?


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Posts: 2613 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR Pro
Picture of rusty
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need a better material ,call scoggins and ****ey raceshop for the fix


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Posts: 1422 | Location: texas | Registered: February 17, 2006Reply With QuoteReport This Post
DRR Sportsman
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quote:
Originally posted by B KING:
quote:
Originally posted by abitz:
So I strap the blower on on my 582 combo that has probably over 1500 passes in n/a mode with the reg. Maintenance over the years 1000 hp stuff nothing exotic . I put new valves springs pac 1224 as I do every other year and go to chassis dyno . Made good power .11 pulls 1225 hp all good . Take it to the track and it’s burning up pushrod tips on the rockers ? Changed the first one then did another burnout and burned another 2 on different hole . Why would it be doing that same cam same rpm etc ,would the quicker acceleration that the blower makes require more spring pressure ? Have my pushrods come to the end of their life cycle ?


Is it just on the exhaust pushrods?



Both
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR Top Comp
Picture of wideopen231
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Not experianced with baby blower, but lots with the big ones. That said so you can take input at face value.

Blower do stress intake valvetrain more,probably not near as much as 50 lb b oost. With my whipple I replaced intak springs every run and shimmed exhuast every 6 to 8.

Now as for blower causing issue. How much power would you figure you added? Now has blower caused issue or more power made any weak area show its face?

I would say more oiling to pushrod ends. Better pushrod cups or tips with lubricating coating on them. Maybe geometry not that it changed but the acceleration rate increased.

I fail to see any way the blower directly affected pushrods wituot is be friction based problem.




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Posts: 4240 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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No way 5 or 6lbs boost would cause this unless the push rods were inferior material to begin with, even with that only the Exhaust should be affected because it is opening against the boost. Sounds like a oiling issue if its both. Call Manton and see what they say
 
Posts: 2455 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR S/Pro
Picture of "The Bender"
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Did you switch to alcohol when you put the blower on?

Is it milking the oil?


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Posts: 3100 | Location: Yes | Registered: July 08, 2009Reply With QuoteReport This Post



DRR Trophy
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I don't see how the blower itself is related to push rods failing. Unless somehow when you installed the blower intake, the distributor isn't in the correct location up and down and is somehow shorting the top end for oil??? I think the top end oiling goes through that hole near the lower half of the distributor shaft, theres a step in the distributor body that blinds the bottom and top of that hole. Possibly depth isn't perfect and you've somehow blocked off the flow to that passage and now the top end is not getting enough oil???

I always loosen the slip collar, remove gasket, push distributor down till fully engaged, then tighten collar, add a thick gasket and that's it.

Are you burning out at the same RPM as NA?
 
Posts: 396 | Location: Pride, La | Registered: April 18, 2006Reply With QuoteReport This Post
DRR Sportsman
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So update : I pulled all the rockers and only passengers side head has the issues with almost all the pushrods intake and exhaust .

- yes it’s alky motor and oil is good .
- only pulling 5 lbs of boost
- pushrods are comp can .80 Chromoly probably have 1500 passes on them .
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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If its only on 1 side then Definatly oiling issue, something restricting that side. I would pull the manifold and check all the lifters, but before that double check the distributer height as was already mentioned, if you have a engine primer install it and check flow to the rockers.
 
Posts: 2455 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Elite
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Give Alan Glatt a call.



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Posts: 12173 | Location: 33463 | Registered: February 04, 2004Reply With QuoteReport This Post
DRR Sportsman
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quote:
Originally posted by Big Steve:
If its only on 1 side then Definatly oiling issue, something restricting that side. I would pull the manifold and check all the lifters, but before that double check the distributer height as was already mentioned, if you have a engine primer install it and check flow to the rockers.


That’s a good idea I will prime it and see how the oil flows . As for distributor I installed it without gasket with loose collar then added the gasket . The only thing I did not use one of the o ring gaskets on the shaft as it ripped . But it ran like that without the blower .
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR Pro
Picture of Alaskaracer
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Are you running restrictors? If so, get rid of them.....


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Posts: 1503 | Location: Back home in Alaska! | Registered: February 13, 2011Reply With QuoteReport This Post
DRR Sportsman
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UPDATE !

I pulled distributeur and primed the engine passenger side is full of oil , drivers side not a drop !!! So it’s an oiling issue !
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post



DRR S/Pro
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Now pull the manifold and check the lifters and oil flow to the lifters on that side
 
Posts: 2455 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Sportsman
Picture of TD3550
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Like Steve says check that dry oil galley. You can run the prime tool, Starting with the very rear lifter pull it and check for oil discharge. Continue down the line. As a side note i have seen where as the front galley plug came out and that was an issue also.

Non Priority oiling starts from the top down.
Priority oiling starts from the bottom up.

Older blocks>>Non priority.
Newer blocks>> Priority.

Just some pointers...
 
Posts: 1409 | Location: Under a Truck | Registered: August 23, 2013Reply With QuoteReport This Post
DRR Sportsman
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UPDATE !!!

So pulled intake and started priming took no oil coming out of passenger side ! Lifters all look great even blew air through holes to see if blocked .
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR Sportsman
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Just to also mention this is a dart big m block
 
Posts: 40 | Location: canada | Registered: December 08, 2011Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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Well being a Dart block it has priority oiling and is feeding from the front of the block off the main oil galley. Being you are getting oil to only 1 side my bet is the block has oil restrictors for the lifter galleys and one of them is plugged up with something. If the galley plug had fell out seems to me it would affect both sides and overall oil pressure to the entire engine. Time to pull the cam gear off and remove the galley plug and have a look

This message has been edited. Last edited by: Big Steve,
 
Posts: 2455 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Sportsman
Picture of TD3550
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Pretty simple video on priority.

https://www.youtube.com/watch?v=wBeUClZs9RU
 
Posts: 1409 | Location: Under a Truck | Registered: August 23, 2013Reply With QuoteReport This Post
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