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need help badly please #65329
05/28/08 07:40 PM
05/28/08 07:40 PM
Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
My340Duster Offline OP
super gas
My340Duster  Offline OP
super gas

Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
well the much awaited day has come and gone. Car is all back together but making noise from the passenger side badly. I switched from a mechanical cam to hydraulic and put new cam lifters and correct pushrods in. Adjusted the las according to the chart to a tee setting the preload on the lifters everything was completely coating in break in lube. Now after many times with the valve cover off then back on I started it with the cover off and held each rocker. Didnt seem to affect the noise to much but did a little. After shutting it off what i did notice is I am able to push down fairly easily on 3 off the lifters on the passenger side and none on the drivers. I am assuming these 3 are not pumping up and they are brand new. I have great oill pressure and everything is adjusted to specs. WHAT DO I DO NOW......

Re: need help badly please [Re: My340Duster] #65330
05/28/08 07:57 PM
05/28/08 07:57 PM
Joined: Jan 2003
Posts: 14,470
renton, Washington
ph23vo Offline
I Live Here
ph23vo  Offline
I Live Here

Joined: Jan 2003
Posts: 14,470
renton, Washington
loosen the lash on those 3 to allow them to pump up then readjust all dan

Re: need help badly please [Re: ph23vo] #65331
05/28/08 08:52 PM
05/28/08 08:52 PM
Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
My340Duster Offline OP
super gas
My340Duster  Offline OP
super gas

Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
so would I be backing the lash to zero to try this. I havent heard of doing this to get them to pump up.

Re: need help badly please [Re: My340Duster] #65332
05/28/08 09:09 PM
05/28/08 09:09 PM
Joined: Jan 2003
Posts: 25,200
Upper Midwest
M
MoparforLife Offline
Too Many Posts
MoparforLife  Offline
Too Many Posts
M

Joined: Jan 2003
Posts: 25,200
Upper Midwest
Personally I would do just the opposite. With the engine running I would take a hammer handle and apply pressure to the pushrod end of the noisy rockers and depress the lifters thus force bleeding the air out allowing them to fill with pressurized oil. Has worked in the past many times over. .


Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!
Re: need help badly please [Re: MoparforLife] #65333
05/29/08 06:13 AM
05/29/08 06:13 AM
Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
My340Duster Offline OP
super gas
My340Duster  Offline OP
super gas

Joined: Apr 2003
Posts: 675
Sterling Heights, Michigan
well I tried both and cant seem to get this thing to quiet down. I cant even tell which ones are making noise other than being able to push down on the end of the rocker fairly easily.

Re: need help badly please [Re: My340Duster] #65334
05/29/08 01:01 PM
05/29/08 01:01 PM
Joined: Nov 2006
Posts: 1,086
Baton Rouge, La.
StandOnIt Offline
super stock
StandOnIt  Offline
super stock

Joined: Nov 2006
Posts: 1,086
Baton Rouge, La.
I had a problem like that a few years ago. No matter what I did, I could not get them to pump up correctly. I ended up just pulling them, bringing them back to the parts store and getting new ones. Worked like a charm.


76' Volare, 5.9 magnum w/Iron heads. New best 10.68 at 123 mph 1/4 mile.
Re: need help badly please [Re: StandOnIt] #65335
05/29/08 04:52 PM
05/29/08 04:52 PM
Joined: Jun 2003
Posts: 4,872
connecticut
pnypwr Offline
master
pnypwr  Offline
master

Joined: Jun 2003
Posts: 4,872
connecticut
try setting them hot, the last motor I built i had to adjust them 3 or 4 times till they were quiet at idle...they still make a little noise at rpm but I think its more cam profile and spring pressure...


"Are you gonna bark all day lil doggy? Or are you gonna bite?"


05 ram 2500 ctd
74 gremlin x 360
65 mustang 347
70 coronet R/T 440
03 Mach 1
Re: need help badly please [Re: My340Duster] #65336
05/29/08 08:11 PM
05/29/08 08:11 PM
Joined: Jan 2003
Posts: 1,180
Willoughby Hills, Ohio
gd9704 Offline
super gas
gd9704  Offline
super gas

Joined: Jan 2003
Posts: 1,180
Willoughby Hills, Ohio
I once had an exhaust leak that I SWORE was a lifter/rocker/pushrod making noise.


Re: need help badly please [Re: My340Duster] #65337
05/29/08 10:25 PM
05/29/08 10:25 PM
Joined: Sep 2005
Posts: 2,179
California, USA
B
blairboy3 Offline
top fuel
blairboy3  Offline
top fuel
B

Joined: Sep 2005
Posts: 2,179
California, USA
Quote:

...everything was completely coating in break in lube....




That right there seems to be a problem to me. Is this a flat-tappet hydraulic cam? You only want to coat the lobes of the cam, & the face of the lifters. I would think that coating those things in thick assembly lube would inhibit the flow of oil into the lifters... anyone else agree?

Plus, I've heard of instances where the thickness of the lube would keep the lifters from rotating, and lead to a wiped cam

Last edited by blairboy3; 05/29/08 10:26 PM.

1968 Plymouth Fury III 4-Door: 12.79 @ 115, 60'- 1.93 (Hey... it's a Cruise ship... what do you expect?!) Famoso Raceway, 02/08






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