Gaterman GP-1023 Lifters Long Term Wear

[q1svt]

If zippers pins are just gauge pins... then it seems funny that they only offer them in +.002 or +.006, no +.004.

Easy.. One is 6.4mm and the other 6.5mm  Diff between the 2 is roughly 0.004 inches.

Max

Max we're did you see a 6.5?   Zippers 2014 catalog just list a .002 & .006 oversized pins...
Tks

[a2wheeler]

Joe, nice job on the comparison of roller play. Do you happen to have a Gaterman GP-1023 you can measure?

[joe_lyons]

If any one wants to send me one I will:). New and used would be nice but no I don't have any here.

[Admiral Akbar]

If zippers pins are just gauge pins... then it seems funny that they only offer them in +.002 or +.006, no +.004.

Easy.. One is 6.4mm and the other 6.5mm  Diff between the 2 is roughly 0.004 inches.

Max

Max we're did you see a 6.5?   Zippers 2014 catalog just list a .002 & .006 oversized pins...
Tks

Didn't,,, but I did see 6.4mm here for the 0.002 over-sized pin..

http://harleytechtalk.com/htt/index.php/topic,71385.msg781367.html#msg781367


Ain't too hard to assume that the 0.006 over sized pin is 6.5mm.

Thanks for the measurements, Joe.

Max

[Ohio HD]

Just pulled the tappet covers off of a 13 cvo but before I did I checked the clearance and both rear were .002" and the fronts were .004".  Then when I pulled the covers and gaskets off the rear was then .006" and the front was .008" so I would say that oversized pins would be not needed.

so your measuring between the lifter flat and the pin

were the gaskets the thin metal type and were there obvious compression points on them

can you check the clearance again after reassembly

Yes measuring between lifter and pin.
Idk about the gasket but its a stock one from 2013. When were they different?
Here are some other findings that I worked on today with the tornados flying around.  I cleaned all of the oil out of the rollers so they were dry and zeroed the gauge on the roller and then used a magnet to pull up on the roller to see the play the roller had vertically.  I think this with the quality of the roller and bearings are why 99C lifters suck.  Your results may vary.

Pretty interesting findings there Joe.   

Makes me want to put the set of NOS 'B's I have in my 117 instead of S&S Premiums.

Hope your tornado's were only flying, and not landing.

[joe_lyons]

The sns may be just as good as the 99b lifter. This is just what I had within my reach.  Touched down north of here a ways but got some hail.

[Billy]

Excellent Joe. Thank you. 

[1FSTRK]

  Joe
Thanks for sharing

[No Cents]

 
excellent findings Joe!
good work 

[BUBBIE]

 

Thanks Joe... You-Da-Man

PM sent you 

signed....BUBBIE

[joe_lyons]

I've got 3 99B lifters to check tomorow that have frosting on the rollers.

[metaliser]

I've got 3 99B lifters to check tomorow that have frosting on the rollers.
[/
quote]Joe the pictures I posted on my frosted lifters were also 99B's from my 2010 bike. Here they are again.


[attachment removed after 60 days by system]

[Durwood]

Looks like the comp 850-1 is very close to the "B", .0005 ten thousandths is nearly nothing, nice little oil clearance.
FWIW, I just put a new set of these in my bike, I will pull for inspection at the end of this riding season.

Good info Joe, thanks for taking the time to measure and post

[rbabos]

I've got 3 99B lifters to check tomorow that have frosting on the rollers.

So, if roller cleance still comes in on the low end of this frosted lifter , where's the reason and solution for it? Do we start picking on the cams?
Ron

[joe_lyons]

Nope oil again:p

[BUBBIE]

I agree Joe.

The oil for EPA requirements has a lot of anti-wear additives taken out and That Might be the problem here with the Frosting on cams and rollers...

signed....BUBBIE

[06roadglide]

I agree Joe.

The oil for EPA requirements has a lot of anti-wear additives taken out and That Might be the problem here with the Frosting on cams and rollers...

signed....BUBBIE

And this is one of the reasons I run oil with Zinc in it.

Reminds me of the 80's when all the Chevy small block's had cam & lifter failure's.   

[rbabos]

Any motorcycle oil has way more zddp then any roller lifter requires. Even the basic HD360 has plenty. Still not the root cause of failures from my perspective.
Ron

[Ohio HD]

I agree Joe.

The oil for EPA requirements has a lot of anti-wear additives taken out and That Might be the problem here with the Frosting on cams and rollers...

signed....BUBBIE

And this is one of the reasons I run oil with Zinc in it.

Reminds me of the 80's when all the Chevy small block's had cam & lifter failure's.   

I remember the 305 Chevy issues well, we replaced them to the tune of 5 or 6 a month, for about 5 years, and GM was footing the bill. Their failure wasn't oil related, it was improper heat treat.

[Durwood]

I agree Joe.

The oil for EPA requirements has a lot of anti-wear additives taken out and That Might be the problem here with the Frosting on cams and rollers...

signed....BUBBIE

And this is one of the reasons I run oil with Zinc in it.

Reminds me of the 80's when all the Chevy small block's had cam & lifter failure's.   

I remember the 305 Chevy issues well, we replaced them to the tune of 5 or 6 a month, for about 5 years, and GM was footing the bill. Their failure wasn't oil related, it was improper heat treat.

Yup, always the #2 Ex lobe on them Chevy's,

[Ohio HD]

I agree Joe.

The oil for EPA requirements has a lot of anti-wear additives taken out and That Might be the problem here with the Frosting on cams and rollers...

signed....BUBBIE

And this is one of the reasons I run oil with Zinc in it.

Reminds me of the 80's when all the Chevy small block's had cam & lifter failure's.   

I remember the 305 Chevy issues well, we replaced them to the tune of 5 or 6 a month, for about 5 years, and GM was footing the bill. Their failure wasn't oil related, it was improper heat treat.

Yup, always the #2 Ex lobe on them Chevy's,

No doubt you saw a lot of that action too!   

[mike jesse]

Taking 2 sets of Gatorman's to work tonight. Both are used with about 3500 miles.
I'll check them like Joe has and report tomorrow.

[No Cents]

Taking 2 sets of Gatorman's to work tonight. Both are used with about 3500 miles.
I'll check them like Joe has and report tomorrow.

     

[laserp]

I'm not getting how excessive radial play can result in roller OD failure. I would think the failure would be in the inner element/race area. Maybe a separate problem from the roller OD? Unless there is "lift"-off..
But what do I know..

[Ohio HD]

I think excessive roller and bearing clearance would cause the roller to slide across the lobe, rather than roll and follow it. Maybe has more friction with excessive clearance?