|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
03-21-2015, 05:40 PM | #1 |
Member
Join Date: May 2010
Location: Baton Rouge, LA
Posts: 65
|
Water Pump Hardware 48 Flathead
Hello,
What is the size, thread and length, for the bolts that are used to install the water pumps on a 1948 V8? Is stainless hardware recommended for the bolt inside the water pump? Thanks. |
03-21-2015, 06:03 PM | #2 |
Senior Member
Join Date: Sep 2013
Location: SoCal-Redlands
Posts: 3,009
|
Re: Water Pump Hardware 48 Flathead
Yes to stainless for the bolt inside the pump and don't forget some anti-seize on it as well. Not sure of the length but I'm sure someone will be able to provide that info.
__________________
Making the simple complicated for over 30 years. |
Sponsored Links (Register now to hide all advertisements) |
|
03-21-2015, 08:08 PM | #3 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: Water Pump Hardware 48 Flathead
I've never had a bolt in the water pump not come out, and none were stainless. Anti seize is a good idea, you should be running a corrosion inhibitor of some type in the cooling system.
Martin. |
03-21-2015, 08:23 PM | #4 |
Senior Member
Join Date: Feb 2011
Location: Buchanan, MI
Posts: 676
|
Re: Water Pump Hardware 48 Flathead
The water pump stainless steel bolts are a cure for a problem that doesn't exist.
|
03-21-2015, 08:59 PM | #5 |
Senior Member
Join Date: Sep 2014
Location: oroville calif
Posts: 893
|
Re: Water Pump Hardware 48 Flathead
evidently 42 merc you have never tried to remove a bolt inside the pump with the head rusted nearly off, a $1 stainless steel bolt is worth a lot more than that to save hours of fustration trying to remove a rusted bolt
|
03-21-2015, 10:30 PM | #6 |
Senior Member
Join Date: May 2010
Location: Near Rising Sun, Maryland
Posts: 10,858
|
Re: Water Pump Hardware 48 Flathead
Sponsored Links (Register now to hide all advertisements)
__________________
John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein Last edited by JM 35 Sedan; 03-21-2015 at 10:36 PM. |
03-21-2015, 11:48 PM | #7 |
Senior Member
Join Date: Oct 2010
Location: North Pole, Alaska
Posts: 1,470
|
Re: Water Pump Hardware 48 Flathead
Someone sells a stainless bolt kit for the water pumps, Speedway, or MACs? Sorry, the CRS is getting to me.
|
03-22-2015, 06:39 AM | #8 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: Water Pump Hardware 48 Flathead
John and Mr coast,
From your experience the bolt can be an issue it seems. As I said, I haven't had the displeasure, so could go either way. Thanks for input. I do still think though, if your running an antifreeze/summer coolant (which contains a corrosion inhibitor) and change it as specified by its manufacturer) and anti seize on threads, you can use a regular bolt, and it won't be an issue. Stainless bolts, normally A2 are not good mounting hardware, they gall up and seize quite easily if not cover with anti seize, and snap or round off easily. There maybe decent quality stainless bolts, not A2 sold for the purpose, that would be better. I font think it's a needed thing with good coolant. Martin. |
03-22-2015, 08:17 AM | #9 |
Senior Member
Join Date: May 2010
Location: Gardiner Me.
Posts: 4,200
|
Re: Water Pump Hardware 48 Flathead
Back to the original question. I believe 3/8 course bolt 1-1/14 long. Walt
|
03-22-2015, 10:03 AM | #10 |
Senior Member
Join Date: May 2010
Location: West Central Alberta
Posts: 441
|
Re: Water Pump Hardware 48 Flathead
Be careful about the length if you are replacing all the water pump bolts, they are not standard length and some will bottom out. ..B.
|
03-22-2015, 10:18 AM | #11 |
Member Emeritus
Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
|
Re: Water Pump Hardware 48 Flathead
|
03-22-2015, 01:12 PM | #12 |
Senior Member
Join Date: Sep 2014
Location: oroville calif
Posts: 893
|
Re: Water Pump Hardware 48 Flathead
Scooder, you are right, stainless wont take as much torque as a steel bolt, but the difference is slight, steel bolt 3/8 x 16 is 31#,stainless steel 3/8 by 16 is #29
|
03-22-2015, 02:27 PM | #13 |
Senior Member
Join Date: May 2010
Location: Florida and Penna.
Posts: 4,471
|
Re: Water Pump Hardware 48 Flathead
3/8-16 and I believe the correct length is 7/8". In some cases a 1" bolt bottoms out before tightening. G.M.
__________________
www.fordcollector.com |
03-22-2015, 03:38 PM | #14 |
Member
Join Date: May 2010
Location: Baton Rouge, LA
Posts: 65
|
Re: Water Pump Hardware 48 Flathead
Thanks everyone for the replies, I will be attempting removal of the old pumps (in about a week) and already see rusted bolts inside the water cavity. I will replace the hardware, and be sure to not use bolts that are too long. Thanks for the great advice!
|
03-22-2015, 08:02 PM | #15 | |
Senior Member
Join Date: May 2010
Location: Florida and Penna.
Posts: 4,471
|
Re: Water Pump Hardware 48 Flathead
Quote:
__________________
www.fordcollector.com |
|
03-22-2015, 08:43 PM | #16 |
Senior Member
Join Date: May 2010
Location: Gardiner Me.
Posts: 4,200
|
Re: Water Pump Hardware 48 Flathead
|
03-22-2015, 09:14 PM | #17 |
Senior Member
Join Date: Oct 2011
Location: Gloucester VA
Posts: 1,042
|
Re: Water Pump Hardware 48 Flathead
|
03-23-2015, 04:02 AM | #18 |
Senior Member
Join Date: Aug 2012
Location: Perth, Western Australia
Posts: 2,687
|
Re: Water Pump Hardware 48 Flathead
God its a stupid idea having those bolts inside a water jacket ..
But as dumb as having the crank seal on the inside on a Y block..
__________________
"Came too close to dying to stop living now!" |
05-03-2015, 08:54 AM | #19 |
Member
Join Date: May 2010
Location: Baton Rouge, LA
Posts: 65
|
Re: Water Pump Hardware 48 Flathead
The pump mounting bolt in side the water jacket broke when starting to loosen it. When changing out a water pump one side at a time, can the engine be supported with a jack under the oil pan? I prefer not to have to pull the engine. Thanks.
|
05-03-2015, 09:03 AM | #20 |
Senior Member
Join Date: May 2010
Location: Kokomo, Indiana
Posts: 1,731
|
Re: Water Pump Hardware 48 Flathead
Yes it can. Put a board between the pan and the jack.
__________________
Henry |
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|