This will take you to the main site where there is history, technical information and other information on these cars.
This takes you back to the main page of the forums.
This is the control panel to change your password, information and preferences on this message board.
Click here if your lost your password or need to register on this message board. You must be a registered user to post. Registration is free.
Search this board for information you need.
Click here to buy cool Squarebirds mechandise.
Click here to support Squarebirds.org. For $20 annually receive 20mBytes webspace, a Squarebirds e-mail address and member's icon on the message board.
  #261  
Old 08-28-2015, 12:42 PM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,643
simplyconnected is on a distinguished road
Default

Quote:
Originally Posted by Yadkin View Post
...He says that roller lifters should be adjusted while the oil pump is being primed. He offered to come over and show me how to do it, so I've prepped the engine for this...
John, his hydraulic roller lifters either have links or dog bones to keep the rollers square with the cam. Either way, it's not a simple job of pulling one lifter out. Steve must remove his intake manifold.

Having said that, the lifters are identical to flat. The plunger, check valve, spring, all that is precision steel, hardened and ground. They can be serviced unless the machining was flawed. If it was, the engine builder should have recognized it right away. If a piece of metal got in there from an improperly washed block after machining. It can be cleared.

This business of engine building is highly precision and painstakingly clean. Yes, engines get dirty inside from use, but that is carbon, a natural lubricant (like graphite). The culprit here is, metal chips.

Steve, I'm glad you tracked the problem down to a faulty lifter. That's why I run ~5 gal of fuel through my engines on a test stand with plenty of heat/cool cycles, before dropping it in an engine bay. If anything is wrong, it's easier to fix while out in the open or put the engine back on a stand. The factory does the same but they monitor with sensors all over the engine, running it cold (no plugs or fuel), then hot. If a 'bad' engine is installed in a vehicle, the assembly plant charges the engine plant 3X the labor cost to pull and return. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #262  
Old 08-28-2015, 07:39 PM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

Yeah, the rollers are paired together, intake and exhaust.

Kevin Bush built the short block, timing set and heads in his shop- very clean. I took over from there in my garage, installing the lifters, valve train, and intake. It would have been nice to test run it, but with open headers in a residential neighborhood I don't need to have the Sheriff visit me. We're on good terms and I'd like to keep it that way.

I installed the engine in an auto shop that I'm associated with and still waited until I got the exhaust installed before I fired it up, so it sat, primed, for several months during this process.
Reply With Quote
  #263  
Old 09-16-2015, 11:21 PM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

Back together an running well. I drove to Mocksville this morning, transmission downshifting correctly, Four barrels kicking in, 50 to 70 in no time. Some smoke on hard runs, I assume the rings need to seat a bit.

Rebuilt the rear end and got rid of some nasty looking wheel bearings. The internals all look great.

Installing new front springs and ruined two compressors in the process. I have a specialist coming tomorrow to install them.
Reply With Quote
  #264  
Old 09-17-2015, 09:35 PM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

Looks like another lifter went bad.
Reply With Quote
  #265  
Old 09-18-2015, 06:44 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,643
simplyconnected is on a distinguished road
Default

Ford uses the dog bone style lifters in their SBF engines. They work great.
The 'link' style made by Morel are good too. Ever since Morel, there are a lot of 'knock-offs' that you must steer clear of because they are cheap and they fail. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #266  
Old 09-18-2015, 07:18 PM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,643
simplyconnected is on a distinguished road
Default

Steve, what preload did you use?
This is important because the major cause for lifter failure is metal chips or dirt. Chips can cause the lifter's internal piston to stop working (seize) or it can disable the check valve.

Did you measure your piston-to-valve clearance? If your preset is too deep, the lifter can pump all the way up and drive a valve too deep.

I would disassemble the 'bad' lifters on a clean paper towel and carefully inspect whatever is in there. Too many machine shops are not careful about washing all the parts. Sometimes they leave brush bristles in oil galleries. FE engines are not easy to overhaul successfully. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #267  
Old 09-19-2015, 01:44 AM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

I have a new set coming in from COMP. The set I had was from 2012, and Kevin got them to admit, not in exact words of course, that they had a quality issue then.
Reply With Quote
  #268  
Old 09-19-2015, 01:53 AM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

Dave, Kevin Bush is clean freak, and so am I. He cleaned that block and parts many times. He has a restaurant type sink in his assembly room. This is not some fly by night operation. The lifters failed because of a manufacturing defect. COMP basically admitted that.
Reply With Quote
  #269  
Old 09-19-2015, 05:05 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,643
simplyconnected is on a distinguished road
Default

Quote:
Originally Posted by simplyconnected View Post
...I would disassemble the 'bad' lifters on a clean paper towel and carefully inspect whatever is in there...
I don't know any of the parties involved. Whatever people say (or don't say) means little to me. Let the evidence speak for itself THEN you can talk about who is to blame.

Whether it's bad paint or bad lifters, if the company put them out for retail sales, they should be made responsible to the customer.

Evidently these lifters worked just fine, and then they didn't.

We have used hydraulic lifters for fifty years with no issues. My 1990 Mustang came w/hyd roller cam/lifters. I ran them for sixteen years and so did hundreds of thousands of Mustangs.

The real question is... if these people knew their quality was bad WHY are you buying from them? Close business associates and friends would steer you away from bad parts. I know I would caution you. Removing & reinstalling your intake manifold a few times costs a lot of time and money. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #270  
Old 09-19-2015, 10:51 AM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,906
Yadkin is on a distinguished road
Default

You think Comp knew their product was bad when they sold it to me?
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:46 AM.

Driving, racing or working on cars can be hazardous. The procedures and advice on this website including the message board are opinion only. Squarebirds.org and its webmasters and contributors do not guarantee the correctness of the advice and procedures. The Squarebirds.org and its webmasters assume no liability for any damage, fines, punishment, injury or death resulting from following these procedures or advice. If you do not have the skills or tools to repair your car, please consult a professional. By using this site you agree to hold harmless the Squarebirds.org, its authors and its webmasters from any resulting claim and costs that may occur from using the information found on this site.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Any submissions to this site and any post on this site becomes property of Squarebirds.org . The webmasters reserve the right to edit and modify any submissions to this site. All material on this is site is copyrighted by the Squarebirds.org. Reproduction by any means other than for personal use is strictly prohibited. Permission to use material on this site can be obtained by contacting the webmasters. Copyright 2002-2019 by Squarebirds.org.