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Posted (edited)

I have these pictures too that someone sent me.  1925 vs 1928 roller lifters. Improvements to 1924 lifters for 1925.  They should have 6 digit numbers on one side, and a U shaped piece opposite the numbers that us used to keep them straight.  Hugh

59f209cf0df5b_25v28rollerlifters.jpg.6e5e1c7d9b82e7a90c9f96206fc4ab24.jpg59f20a6ca47ca_1924-1925lifters.thumb.jpg.80c19ae570988f92d6da65c38b194705.jpg 

 

Edited by Hubert_25-25 (see edit history)
  • Like 1
Posted

And Mike, you haven't heard the best part yet.  I picked up an almost new camshaft and camshaft gear for my 1916 D-45 off evilbay a couple years ago.  I ended up sending it down to Competition Cams in Memphis to have it thoroughly checked out.  They checked it for straightness, checked the bearing surfaces for roundness, magnafluxed it to check for any cracks or fissures, and then they micro-polished it for me.  I was told that the cam was/is in absolute perfect condition.  While they had it in their experimental department where they did everything to it, the Chief Engineer had a chance to look it over.  What he told the guys really surprised them and me too.  He told them that the technology used at that point in time at Buick really did not come into common practice until the late 1930's on other American built automobiles and trucks.  It seems that Mr. Marr knew something about holding the exhaust valve open a bit longer to get a better scavenging effect in the cylinders.  I'm totally convinced that this had everything to do with Buick engines being the powerhouse that they were for the time.  When I told the guys about the roller lifter system that was used, they just about couldn't believe it.  The coolest thing about this whole experience was that they only charged me $35.00 plus the shipping back to me for everything they did.  Way cool.

 

Terry Wiegand

South Hutchinson, Kansas

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  • Thanks 1
Posted
On ‎10‎/‎26‎/‎2017 at 6:50 PM, FLYER15015 said:

Roller cam followers in the 20's ?

Buick really was on the leading edge !!!!!

 

Mike in Colorado

 

My 1908 Buick Model F has roller lifters along with my '15 truck, and '18 truck.

Posted

Im well into the engine rebuild on my '24 Master. New pistons, block bored, camshaft re-ground etc. The engine is now in a cradle waiting for me to deliver it to the engineer in 17 days time. A 938 km trip from home which includes an overnight trip on a ferry to get to mainland Australia.

One of the tasks i need to do is find replacement rollers. Mine are like picture 3, some have galling and some have worn out rollers. Some are usable, but its easier to replace them all whilst the engine is apart.

My question to you guys is - "who is the go to guy for replacement rollers"?

No doubt i can get them made here in Australia, but sometimes its just easier if someone is already set up with the tooling etc to get the job done.

Any ideas?

 

David.

Posted
5 hours ago, Larry Schramm said:

 

My 1908 Buick Model F has roller lifters along with my '15 truck, and '18 truck.

 

This should also put the ZDDP oil additive controversy to bed for Buicks too.

Flat-Tappet Cams

"The design of flat-tappet cams makes them especially vulnerable to wear. As the name indicates, the tappet – or lifter – is flat. During operation the surface of the cam lobe slides rapidly over the surface of the tappet, producing high friction and temperatures. The camshaft and lifters are responsible for triggering the precisely tuned movements of the valvetrain 

Without the protective film barrier provided by ZDDP, the cams and lifters wear from the force of operation, negatively affecting cam and valve operation. Because most V-8 engines of the muscle car era came standard with flat-tappet cams, the problem is especially prevalent to classic-car and hot-rod owners."

From:  https://www.amsoil.com/newsstand/classic-and-vintage/articles/reduced-zddp-and-wear-protection/

Posted

And make sure that whoever makes these rollers for you gets the right heat treat on them.  They are a ground finish on the OD.  You cannot run two pieces of hard material against each other without having some serious problems.  Check the old rollers very close on the HRC scale.  You do not want to tear up the camshaft.

 

Terry Wiegand

South Hutchinson, Kansas

Posted

Jim and Terry,

 

Thanks for your advice. I had already planned for that to occur, but it's a timely reminder for those contemplating this to think ahead.

I was just thinking that if there is already someone outhere who can help it just saves time and effort by having to do it all again.

 

Regards

 

David.

  • 1 month later...
Posted
On 10/26/2017 at 9:30 AM, Hubert_25-25 said:

I have these pictures too that someone sent me.  1925 vs 1928 roller lifters. Improvements to 1924 lifters for 1925.  They should have 6 digit numbers on one side, and a U shaped piece opposite the numbers that us used to keep them straight.  Hugh

59f209cf0df5b_25v28rollerlifters.jpg.6e5e1c7d9b82e7a90c9f96206fc4ab24.jpg59f20a6ca47ca_1924-1925lifters.thumb.jpg.80c19ae570988f92d6da65c38b194705.jpg 

 

Are u going to use some supper polish on yours Hue ?

Posted

Thank you for asking,

 

The engine was delivered mid November. Extensive work to be done. The engineer is also going to make a complete set of rollers for me (it's just more expense that has to be done) while he is at it.

 

Still yet to locate some better lifters, but at least i can progress on the engine whilst i am waiting.

 

Now is a good opportunity to put it out there, that if anyone has 1, 2 3 or more good/half decent ones that i could use and that they would be interested in selling, please let me know.

 

In the interim i still have enough to keep me occupied. I picked up my newly recored radiator at the same time and now need to concentrate on getting the surround repaired. Nothing money wont fix??.

 

Then onto the body.

 

David.

Posted
10 hours ago, 1924 6-55 Sport Tourer said:

Thank you for asking,

 

The engine was delivered mid November. Extensive work to be done. The engineer is also going to make a complete set of rollers for me (it's just more expense that has to be done) while he is at it.

 

Still yet to locate some better lifters, but at least i can progress on the engine whilst i am waiting.

 

Now is a good opportunity to put it out there, that if anyone has 1, 2 3 or more good/half decent ones that i could use and that they would be interested in selling, please let me know.

 

In the interim i still have enough to keep me occupied. I picked up my newly recored radiator at the same time and now need to concentrate on getting the surround repaired. Nothing money wont fix??.

 

Then onto the body.

 

David.

 

Where abouts are you having the work done? 

Posted

Hidden Hunter, 

 

I took the engine to Edge Machining in Dookie. I had heard good reports and after visiting, dropping off the engine and talking specs i was quietly impressed.

I suppose time will, but i am not in the least bit worried.

I will provide photos once i get it home.

 

David

Posted

How do you know the old rollers are worn out and need to be replaced? As long as the rollers turn and don't have play, and there isn't any sign that the wheel is worn down, why not just put the old ones back? Maybe I was lucky with mine.

Posted

On the spares I had from my spare 1924 engine some had about .003 play.  Others had over .020 and the "axle" was noticeably worn on one side.

 The shop in Cazanovia NY. has not indicated how many will need redone on the 1925 Standard engine yet.

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