roller cam, torrington bearing ,and cam button
#3086569
10/16/22 04:41 PM
10/16/22 04:41 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
So im building a 512 stroker and decided to go with a roller cam seeing as nobody seems to be able to make a hydraulic flat tappet cam last anymore. What a fringin night mare. I knew very little about roller cams and what was involved in making one work. what is with this stupid cam button? i got one from 440 source and it was way too long. so we took 100 thou off of it. not sure if it was too much or not yet. Then i bolt the timing chain on with arp bolts and the bolts hit the cover! So we took the washers off and it seems to clear now. we discovered the difference is the one with the torrington bearing sticks out farther....[censored]. anyone else run into this problem? this is supposed to be the way to go? been nothing but a nightmare trying to figure this out. anyone run into this before and how did you deal with it? like i said this roller cam stuff is all new to me.
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086570
10/16/22 04:42 PM
10/16/22 04:42 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
more pics of what im dealing with
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086572
10/16/22 04:44 PM
10/16/22 04:44 PM
|
Joined: Aug 2011
Posts: 2,885 Pattison Texas
CSK
master
|
master
Joined: Aug 2011
Posts: 2,885
Pattison Texas
|
on mine I had to grind down the head of bolts with no washers & use a nylon button & grind it down to fit, also the bolts had to be regular hex head bolts
Last edited by csk; 10/16/22 04:45 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: CSK]
#3086574
10/16/22 04:51 PM
10/16/22 04:51 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
ok thanks.....this just makes no sense to me at all. everything ive read says everyone had to grind down or turn down the button....i mean wth kind of nonsense is that! how did you figure out you were at the right size on the button?
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086583
10/16/22 05:31 PM
10/16/22 05:31 PM
|
Joined: May 2011
Posts: 4,489 northern,Ohio,USA
Clanton
master
|
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
|
ok thanks.....this just makes no sense to me at all. everything ive read says everyone had to grind down or turn down the button....i mean wth kind of nonsense is that! how did you figure out you were at the right size on the button? I used clay on the button to check fit but haing it hit the cover with no gasket on may work then use the gasket.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: Uberpube]
#3086584
10/16/22 05:33 PM
10/16/22 05:33 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
im relieved to know its not just me thats having this issue. In this day and age this is the best they can come up with?.....come on!
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086595
10/16/22 06:15 PM
10/16/22 06:15 PM
|
Joined: Jan 2003
Posts: 31,106 Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,106
Oregon
|
I've been making billet timing chain covers and matching cam buttons for 20 years to solve this problem. https://arengineering.com/
Last edited by AndyF; 10/16/22 06:16 PM.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: AndyF]
#3086596
10/16/22 06:18 PM
10/16/22 06:18 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
oh really? so if i buy you stuff this will solve my issues?
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: jwb123]
#3086610
10/16/22 06:53 PM
10/16/22 06:53 PM
|
Joined: May 2011
Posts: 4,489 northern,Ohio,USA
Clanton
master
|
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
|
I seldom get one of the bearing thrust buttons to fit a mopar. I usually just use aluminum bar stock, and turn one myself in the lathe, and I use button head allen bolts, I don't think the heads of the bolts will clear the cover in your pictures. If everything is good with the valve train, there is not a lot of force against the cam button anyway. I have also used the white nylon cam buttons as well, and usually even those have to be trimmed. I thought I was the only 1 to use button head bolts on the cam.I just file the outside edge of the head by .030" all the way around and no problem with the button clearence.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086624
10/16/22 07:56 PM
10/16/22 07:56 PM
|
Joined: Sep 2003
Posts: 1,236 Fairview Tennessee
SV_MOPARS
pro stock
|
pro stock
Joined: Sep 2003
Posts: 1,236
Fairview Tennessee
|
im relieved to know its not just me thats having this issue. In this day and age this is the best they can come up with?.....come on! i will ditto that, im in the same boat.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: SV_MOPARS]
#3086625
10/16/22 08:07 PM
10/16/22 08:07 PM
|
Joined: Nov 2003
Posts: 1,032 illinois
bigblk66_coronet
OP
super stock
|
OP
super stock
Joined: Nov 2003
Posts: 1,032
illinois
|
you too huh? very frustrating. Are you on fb?
66 Dodge Coronet 500
440w/727
11:10 30 over 440 w/292 purple shaft,stock Eddy heads,3:23,full exhaust
Best ET. 12.38 @110 in street trim
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086688
10/16/22 10:51 PM
10/16/22 10:51 PM
|
Joined: Oct 2005
Posts: 8,926 Ontario, Canada
Stanton
Don't question me!
|
Don't question me!
Joined: Oct 2005
Posts: 8,926
Ontario, Canada
|
I thought I was the only 1 to use button head bolts on the cam.I just file the outside edge of the head by .030" all the way around and no problem with the button clearence. I use button head bolts as well and have no problems with clearance. I use a roller cam button like yours but actually have to shim it out to get the endplay. down. I'm using a cast cover that someone produced a number of years ago. Awesome piece but they seem to have only made a limited run.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086748
10/17/22 09:25 AM
10/17/22 09:25 AM
|
Joined: Jan 2003
Posts: 2,937 A shed in England
Tig
master
|
master
Joined: Jan 2003
Posts: 2,937
A shed in England
|
I can remember going through all this too, I ended up grinding the 3 hex bolt heads and using a nylon button on a stock type (chrome) timing cover, as others have done. I always worried when I changed timing cover gaskets as some are thicker or thinner than the original set up one but it never seemed to cause any issue. I used an old stock timing cover with a hole in the appropriate place and a dial gauge to measure the play, this was a long long time ago and I can't remember the figure we were shooting for. If you go to a Jesel belt drive you can set up the play / clearance much more accurately as they are supplied with a selection of shims IIRC. They are expensive but worth it in my opinion.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: bigblk66_coronet]
#3086751
10/17/22 09:42 AM
10/17/22 09:42 AM
|
Joined: Jan 2003
Posts: 75,125 A Banana Republic near you.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,125
A Banana Republic near you.
|
im relieved to know its not just me thats having this issue. In this day and age this is the best they can come up with?.....come on! The only issue is you thinking it's supposed to be a drop in, cam buttons have to be fit to to the parts you have. Did you use a gasket when doing your fit tests? You also might want to add a spacer behind the water pump to firm up the cover because it's going to flex. Andy F's cover setup is a nice piece but you are still going to have to fit it, which will be easier with his stuff.
running up my post count some more .
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: JohnRR]
#3086781
10/17/22 10:34 AM
10/17/22 10:34 AM
|
Joined: Dec 2013
Posts: 4,715 Wichita
GY3
master
|
master
Joined: Dec 2013
Posts: 4,715
Wichita
|
Comp cams nylon thrust button is easy to carve to the right size and just takes a few minutes. The current one has been in my engine for over 6 years. I used arp hardware and didn't have any issues with hitting the cover.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
|
|
|
Re: roller cam, torrington bearing ,and cam button
[Re: JohnRR]
#3086808
10/17/22 11:16 AM
10/17/22 11:16 AM
|
Joined: Jan 2003
Posts: 31,106 Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,106
Oregon
|
im relieved to know its not just me thats having this issue. In this day and age this is the best they can come up with?.....come on! The only issue is you thinking it's supposed to be a drop in, cam buttons have to be fit to to the parts you have. Did you use a gasket when doing your fit tests? You also might want to add a spacer behind the water pump to firm up the cover because it's going to flex. Andy F's cover setup is a nice piece but you are still going to have to fit it, which will be easier with his stuff. Typically the only fitting required with my cover and button is selecting the correct timing cover gasket. Superformance used to make several different gaskets so I kept a selection of each on hand. Only takes a few minutes to mock it up, measure the end play and then select the correct gasket to get the end play in the correct range. We build engines all the time with that setup.
|
|
|
|
|