Thread: Push rods too short?
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03-18-2014 10:29 PM #31
well yep i own a machine shop and been at this for 30 years so why i am on here at 12:16 ? i like to try to help no matter what some on here may think it late yes i do now under stand you did that . did any one check the lifter bores for size ? still say the nuts back off if you just turn it ever so . but i can not help much there is many thing s i asked about that you never did reply on i need all of what i asked to be checked if you need my help .i need to know them things .if you want to call .if you do not under stand me you can call me please at lunch time as i build and machine engines i am very busy .you can find the phone number if you want to call go to McCarthy Performance / Racing Engines to 632+ Cubes or face book mccarthy performance now time for bedLast edited by pat mccarthy; 03-18-2014 at 10:32 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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03-18-2014 10:39 PM #32
I appreciate that Sir!
I'll look up the info and give you a call around noon if you have time-
thanks for the help - I am hell bent to figure this out and learn more while I do...
Thanks again Pat
I sent you a PM by the way...
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03-19-2014 12:51 PM #33
Since you're working with a machine shop, ask them to set a dial indicator and measure the lobes on that one bank!
Quick and easy (relatively speaking) and eliminate any question of a bad lobe.
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03-20-2014 07:18 PM #34
That is an idea that I have not had time to do as of yet but will this weekend -
I was reviewing the earlier post:
"you posted that the cam was .498 ex lift---that will be at the valve of course and with a 1.5 rocker means that cam lift will be aprox .332------ put an indicaror on the lifter and see how much lift your getting"
Just out of curiosity - if I am measuring from the pushrod side, I would look for .498 - yes?
And Pat, I have been trying to find the time to call you around 9am my time so that it's around your lunch, I just have not had the time to do that from work - seems like something always comes up and by the time that I look at the clock, it's closer to 3:00 your time... By the way, I checked out your site, very nice!
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03-20-2014 07:31 PM #35
pushrod side will be the .332----if it is signifintely different(less) you will have found that lobe is worn----------
and your just today reading post #16 that I made on 3-16 ?Last edited by jerry clayton; 03-20-2014 at 07:34 PM.
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03-20-2014 07:41 PM #36
No -Jerry, just have not had time to do it as of yet...
To confirm, the pushrod side will be .332? I guess I am not getting the math in my head...
Thanks again for the help, don't mind learning -
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03-20-2014 07:50 PM #37
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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03-20-2014 08:18 PM #38
many times it is just as easy to just take the lifter out and look at lobe many times the lifter will be bowled out cam lobe will be shiney and nose will be round side to side and will have ramps ground off the fast way is look at a good lobe you should easly tell just looking down the lifter bore. if you do not have a 1 inch dail gauge to measure the travel of push rod . if lets say it a ex side lobe you think is bad you use a good ex lobe back off rocker arm. crank engine by hand. take out spark plug engine will be easser to turn. turn the engine till you on the base circle off cam now mark push rod with a fine tip sharpy marker by head make a line in the push rod . that can be copyed easly by guild plate wiil do .now crank till your at full lift mark push rod now you will have two marks on push rod and almost to very close to .332 now check the bad lifter side marking the push rod the same way as you did the good side back off rocker . check lifter at base circle and crank to max lift now mark push rod you will have two marks like test push rods . now take push rods out a look at your marks or you could messure them from the center line of mark to mark both should be about .332. now if the good push rod it lets say close to 300or 360 and bad lifter side is only 200 then you know it is cam timeLast edited by pat mccarthy; 03-20-2014 at 08:28 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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03-20-2014 08:29 PM #39
ok, I think that I have it - where the disconnect for me is - the Comp spec card says Gross Valve lift is .498 Exhaust, are they making the assumption that you are going to use 1.5 rockers? Lobe lift does say .332 Exhaust....
Here is how it reads just so you see what I am seeing:
These Specs are for cam installed @ 107.0 intake center line
Duration @ .050 Intake 226 Exhaust 234
Lobe Lift .3200 .3320
Lobe separation 111.0
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03-20-2014 08:32 PM #40
and thanks Pat, you Rock!
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03-20-2014 08:36 PM #41
Last edited by pat mccarthy; 03-20-2014 at 08:43 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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03-20-2014 08:39 PM #42
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03-20-2014 08:51 PM #43
thanks both sites are up still wounld of like them abit better but they do the job . show some of the many of the engine i have built and machine work i can do at my shop. well about 4:30 i start to clean up so no machines are running so i should have some time around 4.30Last edited by pat mccarthy; 03-20-2014 at 08:56 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
Ok gang. It's been awhile. With everything that was going on taking care of my mom's affairs and making a few needed mods to the Healey, it was June before anything really got rolling on this...
My Little Red Muscle Truck