Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Sun Nov 16, 2025 11:54 pm

All times are UTC-08:00




Post new topic  Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Mon May 16, 2005 12:18 am 
Offline
Turbo EFI
User avatar

Joined: Tue Mar 11, 2003 5:09 am
Posts: 1167
Location: Troy, Texas
Car Model:
Aaron and I were literally laughing with joy this afternoon. We found where the rocker arm oiling problem was. Actually, it was a couple of things.

The rear rocker shaft bolt was a recent topic of discussion in another thread. Here is our rear bolt and one of the other shorter ones:
Image
As you can see, there is nothing special about the long one, unlike what I understood. There are no holes, extra shoulders, or anything. It's just a plain ol' bolt. :? I guess it's possible someone before me changed it, but why would they? When I removed this rear bolt and cleaned the pool of oil out of its threaded hole in the rocker shaft pedestal, I dug around with a thin wire and found absolutely no way for oil to get in, no holes or passages were visible. We started the engine with this bolt out, and still no oil.

On a whim, as a last desperate move, I took a small slender screwdriver and poked around one last time. Lo and behold! I found a soft spot in the inside wall of the passenger side of the pedestal. :) Poking around a little more, I was able to break through all the sludge and gunk and opened up the passageway from the block. The hole wasn't any more than about 1/8" diameter, much smaller than I would have imagined. Aaron started the engine again while I watched the hole, and I got a shower of oil sprayed on my chest. :shock: We put the bolt back in and fired her up again, but still no oil in the rockers. :twisted:

Not to be defeated, we pulled the whole darned thing apart and rodded out each orifice with fine wire and blew them out with compressed air. A good shot of WD-40 from a can with the little spray tube confirmed each passage was clear. Everything back in place and valve lash re-established, we gave it another go. It took a little over a minute, but we began to see puddles forming on top of the valve springs and oil dribbling on top of the push rods. Finally, we were able to let the engine run through an initial break in period of about 20 minutes, without worrying that it wasn't oiling properly. Our determination paid off.

Slantsixdan, here is the front end of the shaft where I was telling you I could not find the flat you described. This is a '74, so go figure. :?

Image

Thanks to everyone for all the suggestions. One more hurdle cleared.

Jerry

_________________
There's a difference between ignorance and stupidity.
Ignorance is not knowing any better.
Stupidity is knowing, yet doing it anyway.


Top
   
 Post subject:
PostPosted: Mon May 16, 2005 5:43 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 17208
Location: Blacksburg, VA
Car Model:
Great work, Jerry. You should hang that oiled shirt up on the wall, eh?

Lou

_________________
Home of Slant6-powered fun machines since 1988


Top
   
 Post subject:
PostPosted: Mon May 16, 2005 1:54 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8968
Location: Silver Springs, Fl.
Car Model:
Just for information. The oil holes in the rocker shaft, should be in the 4 or 5 o'clock position, looking at the shaft from the front. Some heads had a 3/8 thread bolt in the rear position. Some heads had a "stepped" bolt, 3/8 at the top and 5/16 thread. I don't know what year they changed, the earlier heads I have use the 3/8 bolt.

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


Top
   
 Post subject:
PostPosted: Mon May 16, 2005 2:16 pm 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14744
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
Quote:
Just for information. The oil holes in the rocker shaft, should be in the 4 or 5 o'clock position, looking at the shaft from the front. Some heads had a 3/8 thread bolt in the rear position. Some heads had a "stepped" bolt, 3/8 at the top and 5/16 thread. I don't know what year they changed, the earlier heads I have use the 3/8 bolt.
I have seen the stepped bolt in as early as '76 heads. :shock:

_________________
Official Cookie and Mater Tormentor.


Top
   
 Post subject:
PostPosted: Mon May 16, 2005 4:48 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8968
Location: Silver Springs, Fl.
Car Model:
Quote:
[

I have seen the stepped bolt in as early as '76 heads. :shock:
That's not an early head. :wink:

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


Top
   
 Post subject:
PostPosted: Mon May 16, 2005 10:48 pm 
Offline
Turbo EFI
User avatar

Joined: Tue Mar 11, 2003 5:09 am
Posts: 1167
Location: Troy, Texas
Car Model:
Something else about this engine doesn't make sense to me. My Haynes manual indicates the oil capacity is five quarts, with a new filter. I have put in only four quarts, but the dipstick (original one) shows "full". I'm using the Purolator PureONE PL30001, which is taller than stock. The car is sitting even on jack stands. Is it four or is it five?

Jerry

_________________
There's a difference between ignorance and stupidity.
Ignorance is not knowing any better.
Stupidity is knowing, yet doing it anyway.


Top
   
 Post subject:
PostPosted: Tue May 17, 2005 12:11 am 
Offline
Board Sponsor
User avatar

Joined: Sat Feb 08, 2003 2:37 pm
Posts: 4194
Location: CA
Car Model:
According to my 71 service manual, 4 quarts, but it has a note, saying if filter element is replaced add one additional quart.

So I gather stock filters are supposed to hold 1 quart, assuming standpipe and anti-drainback valves are in working order.

I usually use 5.5-6, and I use a ~7" tall wix 51773 filter


Top
   
 Post subject:
PostPosted: Tue May 17, 2005 7:39 am 
Offline
Turbo EFI
User avatar

Joined: Tue Mar 11, 2003 5:09 am
Posts: 1167
Location: Troy, Texas
Car Model:
That's what doesn't make sense. I would expect it to take at least one more quart, because of the larger filter we have. We did remove the taller standpipe from the old pump and transplanted it into the new one. I'll have to admit that I did not know about the internal check valve, or that it should have been tested. The oil pan drain plug threads are slightly stripped out, and there is a small leak. I guess, when we drain the oil to fix the threads, we can remove the filter and check the anti-drain valve. How does one go about that?

By the way, with the filter in an upright position, should I expect it to dump a bunch of oil down on me and the tie rod, when I loosen it for removal?

Jerry

_________________
There's a difference between ignorance and stupidity.
Ignorance is not knowing any better.
Stupidity is knowing, yet doing it anyway.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 8 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: Google [Bot] and 22 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited