Starting to sound like wrong length pushrods, but could be a lifter issue. Pull the cover and try to determine if any of the valves are being held open.
Too much, too little?
- Thread starter Ronbo
- Start date
'68falconohio
Well-known member
We used a corded drill with extension and socket adapter to prime the oiling system in my fresh 200. Could a person see the valves move if there's too much lifter preload and full oil pressure is applied? (priming oil system with rocker cover off)
Ronbo, didn't you have trouble keeping the pushrods on the rockers when you tightened down the rocker shaft?
Ronbo, didn't you have trouble keeping the pushrods on the rockers when you tightened down the rocker shaft?
'68falconohio":3psb4icf said:
Yup, and therein lies the problem. I loosened the rocker shaft a bit and voila! Compression! So I shimmed the shaft with 1/6th" washers, still no compression. 1/8" or so was next, no compression. The two combined gave me compression and the beast roared to life. I'm not comfortable with those washers under the pedestals and the push rods seemed a little "too loose" I'm hoping the lifters pump up enough to compensate. :roll: Parts store has the push rods in the -1/16th size but I dont think its enough. I wonder just how much was shaved off the head? When it fires it sounds like a real beast, we'll see if it can walk the walk tomorrow
Thanks for all the help, look for more in the coming days. Hopefully I don;t lose a pushhrod.
Ron
Vin Man
Famous Member
Ronbo":yhyk9ar9 said:'68falconohio":yhyk9ar9 said:
Yup, and therein lies the problem. I loosened the rocker shaft a bit and voila! Compression! So I shimmed the shaft with 1/6th" washers, still no compression. 1/8" or so was next, no compression. The two combined gave me compression and the beast roared to life. I'm not comfortable with those washers under the pedestals and the push rods seemed a little "too loose" I'm hoping the lifters pump up enough to compensate. :roll: Parts store has the push rods in the -1/16th size but I dont think its enough. I wonder just how much was shaved off the head? When it fires it sounds like a real beast, we'll see if it can walk the walk tomorrow
Thanks for all the help, look for more in the coming days. Hopefully I don;t lose a pushhrod.
Ron
Great news Ron. Now, get yourself the adjustable assembly and new pushrods. ClassicInlines has them new. Or get them off eBay for $100 here: http://cgi.ebay.com/ebaymotors/ws/e...120503365059&ssPageName=ADME:B:EF:MOTORS:1123
Vin Man
Famous Member
Ron - I want this one from Classic Inlines: http://classicinlines.com/proddetail.asp?prod=RAS-200-HRR
I'll sell you my setup and buy this from Mike myself. :roll: Deal?
If Mike is watching this post, I take it I would need new pushrods for the 1.6 ratio, right?
I'll sell you my setup and buy this from Mike myself. :roll: Deal?
If Mike is watching this post, I take it I would need new pushrods for the 1.6 ratio, right?
Yup, that sure looks good! Wonder why it says 1.6 ratio and then in the verbage it says 1.5? Either way that would give a good bump. That clatter scares me a bit and I'm confused, I thought hydraulic lifters ate up quite a bit of tolerance? Thats a pretty big stack of washers I have in there (I'll actually go out and mic them later), enough that I dont think the -1/16th rods would help any. :roll: I never pulled that block fully apart after the rebuild so I wonder if it has solid lifters in there with the non-adjustable rocker set up?
Yup JW, you and several others called this one. I was too busy running over all the basics (three different times).
For the record, there is more than enough room in the CI valve cover, I was reaching there.
Ron
Yup JW, you and several others called this one. I was too busy running over all the basics (three different times).
For the record, there is more than enough room in the CI valve cover, I was reaching there.
Ron
Gene Fiore
Famous Member
Hey Ronbo, if you want to go the adjustable rocker setup I have a set of 1.5 ratio adjustable rockers that have very low miles and that I have completely dissassembled, cleaned thoroughly and re-assembled. They are ready to bolt on. PM me if intererested.
Gene
Gene
Glad you got it running. 
On rod length, remember that when you raised the pedestal 1/16", you raised both sides of the rocker 1/16". (You said 1/6", but I assume you meant 1/16".) You therefor added 1/8" total slack to the train, and 3/16" shims = 3/8".
You just can't avoid going adjustable with longer pushrods to get it right. 
On rod length, remember that when you raised the pedestal 1/16", you raised both sides of the rocker 1/16". (You said 1/6", but I assume you meant 1/16".) You therefor added 1/8" total slack to the train, and 3/16" shims = 3/8".
You just can't avoid going adjustable with longer pushrods to get it right. BIGREDRASA":1tqk8kap said:Glad you got it running.
On rod length, remember that when you raised the pedestal 1/16", you raised both sides of the rocker 1/16". (You said 1/6", but I assume you meant 1/16".) You therefor added 1/8" total slack to the train, and 3/16" shims = 3/8".
I'm going adjustable. The thing runs like a raped ape but it still has issues. Look for the head gasket question. And, thanks!
With washers under the pedestals I'd be surprised if you are getting oil through the rocker arms via the passage in the rear pedestal, that might be where some of your clatter is coming from in the current configuration. Sounds like you are going the right route with the adjustables.
Bringing this to the top again :roll: Five years later and I'm still messing with the same problem. Been through so much other stuff I forgot about this. I went with the CI adjustable rocker assy. and the car ran for awhile then died. Broken push rod the first time, three collapsed lifters and two thrown pushrods the second time. Things got a little hectic around here so the car sat. I tore it back down to the block this past fall to inspect. No obvious damage other than that mentioned. It appears some of the valve retainers were hanging up on the aluminum valve cover but not the ones where the push rods jumped ship. I ground reliefs (sp?) to stop that mess. I put the hydraulic shaft back in not realizing I'd already been through this :roll: :roll: Ground hog day anyone? 
Now I'm going BACK to the adjustable shaft and I noticed all the pedestals have the same sized bolt holes. Shouldn't the one to the rear be larger?
Its funny, same exact thing, number three is the only one with compression. Never did find proper shims Will it be ok to use the shaft with all the same holes in the pedestals? And has anyone else had problems with the adjustable shafts? I came across a blog where a guy had problems in 2009, like me, and I wont get into his thoughts. Quite unpleasant :| Anyways, ANY advice as always is appreciated.
Ron
P.S. He said the balls on the rockers were different sizes so some weren't fully seating in the rod cups. That sounded sooooo wrong but you know what I'm saying.
Now I'm going BACK to the adjustable shaft and I noticed all the pedestals have the same sized bolt holes. Shouldn't the one to the rear be larger?Its funny, same exact thing, number three is the only one with compression. Never did find proper shims
Will it be ok to use the shaft with all the same holes in the pedestals? And has anyone else had problems with the adjustable shafts? I came across a blog where a guy had problems in 2009, like me, and I wont get into his thoughts. Quite unpleasant :| Anyways, ANY advice as always is appreciated. Ron
P.S. He said the balls on the rockers were different sizes so some weren't fully seating in the rod cups. That sounded sooooo wrong but you know what I'm saying.
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