Did I screw up my oil pump?
#1
Member
Thread Starter
Join Date: Nov 2000
Location: Cleveland, OH and Flint, MI
Posts: 440
Likes: 0
Received 0 Likes
on
0 Posts
Did I screw up my oil pump?
I've been freshening up my engine, I just installed a new oil pump and oil pickup, and on other's advice I tried to braze the pickup to the pump. Well I couldnt get the pump body hot enough with my mapp torch to braze it. I had the torch on there for probably about 5 minutes. Is there anything in the pump that this would have damaged?
#2
Re: Did I screw up my oil pump?
Originally posted by cfabe
I've been freshening up my engine, I just installed a new oil pump and oil pickup, and on other's advice I tried to braze the pickup to the pump. Well I couldnt get the pump body hot enough with my mapp torch to braze it. I had the torch on there for probably about 5 minutes. Is there anything in the pump that this would have damaged?
I've been freshening up my engine, I just installed a new oil pump and oil pickup, and on other's advice I tried to braze the pickup to the pump. Well I couldnt get the pump body hot enough with my mapp torch to braze it. I had the torch on there for probably about 5 minutes. Is there anything in the pump that this would have damaged?
#3
Cfabe,
It is possible that given the temperatures achievable with Mapp gas you could anneal (soften) the gears or rotors in the pump, depending on the pump style you have. It is also possible to distort the housing, or weaken the relief spring as Hellraiser suggested. Dismantle the pump and inspect the gears (or rotors) and replace the relief spring for safety.
If the gears are disolored from heating, you'll have to find a place with a Rockwell hardness tester to check the gears for you. Check them against the hardness of your original gears. Most oil pumps should have gears or rotors that are at least deep case hardened, it not completly through hardened. Yours probably started out that way...
It is possible that given the temperatures achievable with Mapp gas you could anneal (soften) the gears or rotors in the pump, depending on the pump style you have. It is also possible to distort the housing, or weaken the relief spring as Hellraiser suggested. Dismantle the pump and inspect the gears (or rotors) and replace the relief spring for safety.
If the gears are disolored from heating, you'll have to find a place with a Rockwell hardness tester to check the gears for you. Check them against the hardness of your original gears. Most oil pumps should have gears or rotors that are at least deep case hardened, it not completly through hardened. Yours probably started out that way...
#4
Member
Thread Starter
Join Date: Nov 2000
Location: Cleveland, OH and Flint, MI
Posts: 440
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the replies. I think given what a new oil pump and screen cost I'll just get a new one and not take any chances. Ahh the cost of learning.
#5
Member
Thread Starter
Join Date: Nov 2000
Location: Cleveland, OH and Flint, MI
Posts: 440
Likes: 0
Received 0 Likes
on
0 Posts
Well, I decided to go ahead and test it seeing that we've got a tester here at work. One of the gears was slightly discolored, but the hardness was identical to the gears in the old stock pump, so I'm going to just put it all back togther and run with it.
#7
TGO Supporter
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
considering the low cost of a pump i'd trash it and buy another. this time remove the cover and the spring before you apply heat. i don't weld the cast iron, i weld a brace from the pick up tube and bolt it to the pump body.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM
toronto formula
Engine/Drivetrain/Suspension Parts for Sale
15
11-10-2015 06:17 AM
Navy8125
Engine/Drivetrain/Suspension Parts for Sale
4
08-21-2015 09:32 AM