Hello and welcome to Packard Motor Car Information! If you're new here, please register for a free account.  
Login
Username:

Password:

Remember me



Lost Password?

Register now!
FAQ's
Main Menu
Recent Forum Topics
Who is Online
236 user(s) are online (170 user(s) are browsing Forums)

Members: 2
Guests: 234

Wmsue, Don B, more...
Helping out...
PackardInfo is a free resource for Packard Owners that is completely supported by user donations. If you can help out, that would be great!

Donate via PayPal
Video Content
Visit PackardInfo.com YouTube Playlist

Donate via PayPal



« 1 2 3 4 (5) 6 7 8 »

Re: The big coolant disaster. HELP!
#41
Home away from home
Home away from home

Fred Puhn
See User information
I have seen brass nuts used on exhaust manifolds on several other cars I have owned. Lock washers are generally not used because the heat from the exhaust makes them lose their spring force. I think it is good practice to use a flat washer under any nut if a lock washer is not used. The flat washer helps spread out the load from the nut on the mating part.

Posted on: 2010/11/17 18:24
Fred Puhn
 Top  Print   
 


Re: The big coolant disaster. HELP!
#42
Home away from home
Home away from home

JT120
See User information
After removing the manifold on my 120 I found the the front stud was barely holding on. There was hardly any thread left in the block so I drilled it out, installed a helicoil and installed the original stud size. It's held up well with no problems. I also installed the manifolds as posted by HH56. I tightened the 2 manifolds together at the hot spot using a straight edge on the faces, installed the manifold to block, torqued and then loosened the the 3 hot spot bolts, rechecked the manifold to block torque and then torqued the hot spot bolts.

Posted on: 2010/11/17 19:00
 Top  Print   
 


Re: The big coolant disaster. HELP!
#43
Quite a regular
Quite a regular

Dave Merrick
See User information
So I got the Manifold off today.
I soaked them all in PB Blaster last night and then again this morning. I was surprised how easy the nuts came off. (Yes they DO have washer, by the way) However, I had to take most of them off with a the box-end of my combo wrenches; there just isn't room for a socket wrench -or- an universal joint (At least with my limited tools.)

Just when I thought I saw the weirdest of the weird, here's a new one.... I got the manifold off and sitting in one of the intake ports is a split washer! Just sitting there all nice and shiny from being washed with gas all those years I guess. I saw that and about had a heart attack. If that had made it's way in...... After setting the washer on the bench I noticed it's exactly the same as the ones under the nuts that hold the throttle to the manifold. And one of those was all new and shiny unlike the other three!

After a lot of research and Seeing what's there, I've opted to do a Heli-Coil. I picked up a kit at Autozone, but need to get a 25/64 bit to open the hole up.

Any Advice/tips on drilling straight?

BTW, I found this great article on manifold studs I thought I would Share. Link

Posted on: 2010/11/17 22:40
----------------
1951 Packard 300 (2472)
"Built to outlast them all..."
 Top  Print   
 


Re: The big coolant disaster. HELP!
#44
Forum Ambassador
Forum Ambassador

HH56
See User information
There are several types of drill guides available but the better quality ones are a bit expensive for one time use. A small machinist square and good eye can be used or a tapping guide might be used also--if the hole size is close. A less robust item could be made if you have access to a drill press. A straight hole thru a block of hardwood could be made. A length of metal tubing or bushing stock with ID lightly larger than the drill bit could be inserted so the drill bit wouldn't mess it up and assy clamped against the block to guide the drill.

Attach file:



jpg  (11.01 KB)
209_4ce4a68a50a58.jpg 523X255 px

jpg  (24.68 KB)
209_4ce4a6db87960.jpg 509X345 px

Posted on: 2010/11/17 23:09
 Top  Print   
 


Re: The big coolant disaster. HELP!
#45
Home away from home
Home away from home

PackardV8
See User information
The drill guides are an excellent idea. Whatever u do don't break the drill bit off in the stud. Drill bits are extremely hard and that means nearly impossible ot remove if it breaks off.

Posted on: 2010/11/17 23:24
VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245
 Top  Print   
 


Re: The big coolant disaster. HELP!
#46
Quite a regular
Quite a regular

Dave Merrick
See User information
Not drilling the stud, the stud fell out. I am drilling the block to accept the Heli-Coil.

Posted on: 2010/11/17 23:29
----------------
1951 Packard 300 (2472)
"Built to outlast them all..."
 Top  Print   
 


Re: The big coolant disaster. HELP!
#47
Webmaster
Webmaster

BigKev
See User information
Since you are only slightly enlarging the hole, IMHO I bet you will find the existing hole will help act as its own guide as the point of the bit should self-center in the existing bore to a degree as long as you are letting the bit do the work and keep it generally straight.

Posted on: 2010/11/17 23:33
-BigKev


1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog
 Top  Print   
 


Re: The big coolant disaster. HELP!
#48
Home away from home
Home away from home

Mike
See User information
Helicoils are nice but have to be done right. My personal opinion, drill larger and tap it, and install a stud. put some sealant on it, and be done. Others may or may not disagree, but just about anyone can tap a drilled hole. It's a little easier to mess up a helicoil install than it is a simple tap job if you go slow and backup/clean the tap as you're working.

Posted on: 2010/11/17 23:52
 Top  Print   
 


Re: The big coolant disaster. HELP!
#49
Home away from home
Home away from home

PackardV8
See User information
Need to look it up on google or something but there is usualy a special angle ground on the drill bit for cast iron to keep it from hanging up. I usualy don;t grind the angle any different but since it's going into a critical area mite be a good idea.

Posted on: 2010/11/17 23:55
VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245
 Top  Print   
 


Re: The big coolant disaster. HELP!
#50
Home away from home
Home away from home

Eric Boyle
See User information
I've got to agree with cortcomp, put the next larger size stud in it. The reason why I say this is there's two different kinds of helicoils, the standard "spring" looking type and a solid type. Since it's going into coolant I'd be cautious about using the spring ones, seal the stud with blue Locktite at least. I like the oversize stud idea better.

Posted on: 2010/11/18 0:10
 Top  Print   
 




« 1 2 3 4 (5) 6 7 8 »





- The following Google Ad-Sense Advert helps fund the cost of providing this free resource -
- Logged in users will not see these. Please Join and Donate to help support the website -
Search
Recent Photos
Photo of the Day
Recent Registry
Upcoming Events
46th Annual Texas Packard Meet
04/03/2025 - 04/06/2025
Packard Salon - Calling All Twelves
05/27/2025 - 05/29/2025
58th Annual National Meet
05/31/2025 - 06/06/2025
AACA Fall Meet (Hershey)
10/06/2025 - 10/10/2025
South Pacific Packard Club 2026 Rally
03/22/2026 - 03/28/2026
Website Comments or Questions?? Click Here Copyright 2006-2024, PackardInfo.com All Rights Reserved