 Type 1 vs Type 4, I don't get it |
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 Dec 3 2012, 09:39 AM
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can't remember  Group: Members Posts: 3,157 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest 
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I am building a new engine out of an old 1.7. The type 4 oil pump had indeed failed with the idler impeller shaft pushed against the cam shaft. In fact I think this is why a perfectly good car was left to rot - they thought they had "thrown a rod".
OK, I read the hoopla and bought a 26 mm Type 1 pump. I started cleaning up the old pump just for fun. That is when it struck me that the idler shaft for the Type 1 is pressed into the housing exactly like the Type 4. I don't understand how I have a better pump then, other than higher capacity. It still would seem that the shaft could be dislocated over time onto the cam. Also, that is an easy fix for both old and new - the shaft could be peened or pinned in a half hour. So all the wise - what is the deal? Thanks much. |
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Posts in this topic
worn Type 1 vs Type 4 Dec 3 2012, 09:39 AM
r_towle Well,
No one makes a type4 pump.
Aftermarket make... Dec 3 2012, 11:52 AM
worn
Well,
No one makes a type4 pump.
Aftermarket mak... Dec 3 2012, 12:33 PM Cap'n Krusty While I believe the oil pump failures have happene... Dec 3 2012, 01:11 PM r_towle
While I believe the oil pump failures have happen... Dec 3 2012, 03:21 PM LotusJoe
While I believe the oil pump failures have happen... Dec 3 2012, 10:25 PM aircooledtechguy
I have, last month my buddy sheared the shaft on ... Dec 4 2012, 12:31 AM stugray
You mean the same person who:
Tells me to ditch... Dec 3 2012, 02:31 PM Elliot Cannon
You mean the same person who:
Tells me to ditc... Dec 3 2012, 06:31 PM DBCooper
You mean the same person who:
Tells me to dit... Dec 4 2012, 07:44 AM Rand Oof. Bitter much? Dec 3 2012, 02:53 PM Valy Yes, Type 1 pumps have the same shaft as Type 4 bu... Dec 3 2012, 03:21 PM jhadler Just to add my $0.02...
The aftermarket high... Dec 3 2012, 06:21 PM Eric_Shea Use a type 901 pump. You'll have to put a diff... Dec 3 2012, 06:27 PM worn
Use a type 901 pump. You'll have to put a dif... Dec 4 2012, 10:53 AM '73-914kid Ive never seen a broken type 4 pump, but the pump ... Dec 3 2012, 06:46 PM 396
Ive never seen a broken type 4 pump, but the pump... Dec 3 2012, 08:01 PM LotusJoe
[quote name=''73-914kid' post='1777829' ... Dec 3 2012, 10:39 PM Mark Henry It's hard to find a good type 1 pump as the to... Dec 3 2012, 09:54 PM nathansnathan
It's hard to find a good type 1 pump as the t... Dec 4 2012, 07:49 AM 76-914 This is what you want:
http://www.drdracingheads.... Dec 3 2012, 10:12 PM 396
This is what you want:
http://www.drdracingheads... Dec 4 2012, 07:31 AM  |
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