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View Full Version : Urgent!!! Oiling problem on #1 cylinder


burak sözer
12-30-2004, 04:02:00 PM
I have changed the camshaft and lifters (Sum 1106), valve lash adj. has done,cam breaking has done. But #1 cylinder lifters didnt filled by oil, valves are still noisy http://www.nastyz28.com/ubb/frown.gif

Oil pressure seems normal ( 35-40 psi idle higher till 50 on load) but the amount of oil seems like less than it should be.

The mechanic suspicious about cam bearings and wants to get engine out and check for it... I dont want to do that before asking board memebers.
*Note: I have Edelbrock Torker springs, 1,6 roller tip rockers, 234/234 488/488 (1,5) summit 1106 camshaft all valve train parts are new.

[This message has been edited by burak sözer (edited December 30, 2004).]

1978LT
12-30-2004, 06:31:00 PM
Cam bearings have nothing to do with lifter oiling. Their is a passage in the block that feeds all the lifters. Could be a blockage there, but then it would have done it with the old cam also. You *can* try 2 new lifters if you're willing to yank the intake again. It's possible you got a couple of bum lifters, but it's kinda rare. I'd try backing those lifters off and readjust carefully before I did anything.

bryan1970
12-30-2004, 06:58:00 PM
careful with only replacing 2 lifters. it is possible to break the lobe off the cam. I've seen it happen on new cams not just old ones. one way you could check for oil would be to take the dist out and get an oil primer which goes in the endof a drill and with the valve covers off seehow much oil is making it to the top end.

1978LT
12-30-2004, 08:19:00 PM
<font face="Arial,Verdana" size="2">Originally posted by bryan1970:
careful with only replacing 2 lifters. it is possible to break the lobe off the cam. I've seen it happen on new cams not just old ones. one way you could check for oil would be to take the dist out and get an oil primer which goes in the endof a drill and with the valve covers off seehow much oil is making it to the top end.</font>

It's possible, but with the slow ramps of the RPM cam it would probably do OK, IF he actually needed lifters there. As long as the cam is broken in good, it should work. I've put new lifters on an old cam many times and as long as you follow the break in procedure again you should be OK http://www.nastyz28.com/ubb/wink.gif

Joekool
12-31-2004, 03:06:00 AM
You can put new lifters on a used cam or used lifters on a new cam with no problems as long as both peices are in good shape and you re-break everything in. What might happen though is that if he has poor oil flow to that lobe it could already be going flat from lack of luberication and the only way to fix that would be to install a new cam.

burak sözer
12-31-2004, 05:20:00 AM
Thanks for the replies,

All lifters and valve train parts are new. Also I used plenty of gray lubricant which comes with the cam&lifter kit, also I pre oiled the journals by 0-30 non synthetic engine oil before installation,also I used same assembly lube on lifters bottom, put 20W50 oil to sides and top of lifters, turned the cam shaft a few tours to see runs freely and lifters are moving without problem, then installed the timing chain etc., I preloaded the pushrods 0.030" w/ filler guage, then 1 turn tightened. and cranked the engine, adjusted timing 12 degrees advanced before first firing, engine started, adjusted the carb and loaded to 2500-3000 rmp for 20 mins.

Checked leaks, radiator temp etc. then stoped and re checked the rockers ( they were noisy) then ask the neighbour mechanic to check if I missed someting.

Yesterday I've changed the oil and filter theres no odd things on it.

Infact I dont prefer to get engine out of car, Is there a way to test the oil channels or clean them by pressurised air etc. any trick method?

Is there a hidden place that oil by passes and goes instead of rockers? plug or something?

I would prefer re-check every possible thing before I change some parts, since Im living in overseas ordering&waiting for the parts costs time and $$ http://www.nastyz28.com/ubb/frown.gif I really want to run my engine shortest and safest method.

I ll try to remove valve adj. nuts and re adjust them again , if it doesnt work I ll work on cleaning the oil passages, if it still fails I may go to change lifters and cam. But I used plenty of lube I cant see a reason for being un lubricated :confused

Any suggestion will be wellcome thanks again.
Burak.

rustbucket79
12-31-2004, 05:40:00 AM
I just sent you an E-mail, before reading this. The other thing you can try after the suggestions in the letter is to try and adjust the #1 rockers while the engine is at a slow idle. (this is messy) Sounds like the rockers are preloaded quite a bit, normally you only need 3/4 of a turn from 0 lash. Backing the rockers off one at a time may allow them to bleed off the trapped air and correct this problem.
Best of luck!! http://www.nastyz28.com/ubb/smile.gif

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Custom Auto, your source for quality machine work, cores and new parts at competetive pricing right here in British Columbia 1-888-563-4050
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burak sözer
12-31-2004, 06:06:00 AM
Hi Doug, just read your message, and replied.
http://www.nastyz28.com/ubb/smile.gif You made my day, I ll check the pushrod issue and geometry too. And re adjust the valve lash.

Thanks for your help.

I wish a happy new yaer to all,I hope you have a good party tonight http://www.nastyz28.com/ubb/wink.gif

burak sözer
01-03-2005, 10:10:00 AM
Hi everybody,
Update on oiling problem :
I've changed back to 1,5 rockers then problem has gone, adjusted properly and test drived yesterday.

thanks for all replies.

rustbucket79
01-03-2005, 04:42:00 PM
Glad to hear that fixed it. http://www.nastyz28.com/ubb/smile.gif

------------------
Custom Auto, your source for quality machine work, cores and new parts at competetive pricing right here in British Columbia 1-888-563-4050
A Canadian, EH? (with a 10 second street car)