|
|
|
Your donations help keep this valuable resource free and growing. Thank you.
|
Water pump hub height |
Post Reply 
|
| Author | |
KC71442 
AMC Fan 
Joined: Mar/19/2019 Location: Central WA ST Status: Offline Points: 10 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Water pump hub heightPosted: Jun/10/2019 at 12:28pm |
|
How many gasket to hub heights for AMC V8?
I see two listed, any more? Having trouble getting the AC pulley to alien. Car is original, 73 AMX, 360, auto with factory AC. It has had the water pump changed in the past and I think the wrong hub height was installed. Idler pully and AC comp don't alain correctly. What is the correct water pump for the car?
|
|
 |
|
|
Greyhounds_AMX
AMC Addicted 
Joined: Nov/14/2009 Location: Kansas City Status: Offline Points: 1268 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/10/2019 at 12:49pm |
|
As yours is 1973-up it should use the longer water pump of the two commonly available lengths. It should measure right around 4.875" with the gasket. The belt should come down off the AC compressor and be centered on the idler as it goes to the crank. If the inner belt correctly lines up with the crank, water pump, and alternator, then I would tend to think your issue is with the compressor pulley. Maybe it's the wrong AC clutch pulley or maybe the AC bracket is wrong (which seems like it would be hard).
|
|
|
1968 AMX 390 w/T5
|
|
|
|
|
304-dude
AMC Addicted
Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/10/2019 at 12:50pm |
|
Main reason why pump height at the snout is one of two things... either you have obtained a pre 73 pump or someone had swapped out a 72 engine, and has used the 72 water pump pulley, while dumping the original engine along with pump and pulley (not knowing any better). Unfortunately at a later time when replacing the pump with a proper one, the pulley will not align any more.
Here is a link to show the differences... http://theamcforum.com/forum/water-pump-info-circa-2019_topic99988.html |
|
|
71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
|
|
|
|
Greyhounds_AMX
AMC Addicted
Joined: Nov/14/2009 Location: Kansas City Status: Offline Points: 1268 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/10/2019 at 12:51pm |
|
Here's a '73 360 with factory air:
 |
|
|
1968 AMX 390 w/T5
|
|
|
|
|
KC71442
AMC Fan
Joined: Mar/19/2019 Location: Central WA ST Status: Offline Points: 10 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/14/2019 at 8:14am |
|
Thank you for the info and pic. Now off to the shop.
|
|
|
|
|
PHAT69AMX
AMC Addicted
Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5926 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/15/2019 at 7:17pm |
|
This may help to determine what Pulleys you have and what they are for:
|
|
|
|
|
Trader
AMC Addicted
Joined: May/15/2018 Location: Ontario Status: Offline Points: 6913 |
Post Options
Thanks(0)
Quote Reply
Posted: Jun/15/2019 at 9:27pm |
|
You can see that AMC/Jeep had a few combinations over the years and in subsequent years likely many swapping of parts. Add a few International numbers to the list and it just gets worse.
The pulleys have to align! If it's just the water pump and there is shaft length, I just go with spacers, Summit, Mr Gasket ... Down this road and you can hunt to no end, nothing wrong with using spacers to fit. Some you space out the pulley and machine back the extension to center the fan to the shroud. It's not "stock"or "restoration" but it works the best if originals cannot be found. My opinion.
|
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Click for TheAMCForum Rules
Topic Options