Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> 914World Classifieds Rules

We've established the following rules to help make your sales/purchases as successful as possible!
- Please List WTB:, FS:, TRADE: etc (want to buy, for sale, and trade respectively) before your add title.
- You *must* put a price in your ad and state how you would like payment!
- If you'd like to bump your ads, feel free to do so every two days.
- DO NOT MAKE YOUR ADS IN ALL CAPITAL LETTERS! It's considered rude.
- All eBay ads belong in the eBay category.
- Please consolidate your ads into one big lump... listings and pictures together in one thread. Please be considerate of other classified users!!
- Mark your items "SOLD" once you sell them. Please do not ask to have ads removed. Ads will automatically hide themselves after 30 days. We also ask that you leave your pricing in the ads to help others determine fair market value for future sales.

 
 Reply to this topicStart new topic
> WTB: 1974 1.8 Mass Air Flow (MAF) Sensor
andrewvolsen
post Sep 11 2016, 12:48 AM
Post #1


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California
Just like the title says, looking for a 1974 1.8 MAF. Please let me know if you have one available, I need this to get my 914 back on the road.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
andrewvolsen
post Sep 11 2016, 11:41 AM
Post #2


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California
Part number visible on top of the plastic electronics cover of the MAF is 0 280 200 001.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
djway
post Sep 11 2016, 05:25 PM
Post #3


Senior Member
***

Group: Members
Posts: 787
Joined: 16-October 15
From: Riverside
Member No.: 19,266
Region Association: Southern California
QUOTE(andrewvolsen @ Sep 11 2016, 10:41 AM) *

Part number visible on top of the plastic electronics cover of the MAF is 0 280 200 001.

You can rebuild these on your own. I took out the air temp sender and cleaned the contacts and got a good reading then I adjusted the height of the potentiometer wiper to get a clean unworn area. The prior owner had really messed with the spring resistance to cover up a bunch or air leaks so I used an air fuel ratio gauge to set the spring resistance to give me 14.7 reading at 3000 rpm on the highway.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
andrewvolsen
post Sep 11 2016, 05:43 PM
Post #4


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California
I opened it up last night to try cleaning the resistor track and contacts and adjusting the height of the wiper arm to contact fresh resistor track. Unfortunately, there seem to be a number of dead spots in the resistor track where resistance read at the connector pins (I forget the pin numbers) jumps to infinite/open circuit. I tried adjusting it for about an hour, but was unable to get it set in a way that eliminated the dead spots. It looks like a PO tried to clean the resistor track at some point in the past and damaged it (scratch marks), so I think it may be beyond saving.

I am considering just finding a core AFM and sending it in to one of the Bosch AFM rebuild services so I know I have a good working unit. Does anyone have any thoughts on this approach?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bdstone914
post Sep 11 2016, 06:41 PM
Post #5


bdstone914
****

Group: Members
Posts: 4,537
Joined: 8-November 03
From: Riverside CA
Member No.: 1,319
I have one but have to check if it is a75 or 74.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
djway
post Sep 12 2016, 02:02 AM
Post #6


Senior Member
***

Group: Members
Posts: 787
Joined: 16-October 15
From: Riverside
Member No.: 19,266
Region Association: Southern California
QUOTE(andrewvolsen @ Sep 11 2016, 04:43 PM) *

I opened it up last night to try cleaning the resistor track and contacts and adjusting the height of the wiper arm to contact fresh resistor track. Unfortunately, there seem to be a number of dead spots in the resistor track where resistance read at the connector pins (I forget the pin numbers) jumps to infinite/open circuit. I tried adjusting it for about an hour, but was unable to get it set in a way that eliminated the dead spots. It looks like a PO tried to clean the resistor track at some point in the past and damaged it (scratch marks), so I think it may be beyond saving.

I am considering just finding a core AFM and sending it in to one of the Bosch AFM rebuild services so I know I have a good working unit. Does anyone have any thoughts on this approach?

I found a bunch of old baywindow 2.0 AFM's cheap and I got one with a nice board and just swapped them. I made an air fuel ratio meter that I could clamp onto the stock exhaust pipe. I used that to set the spring tension so that I ran at 14.7 at 3000 rpm on the highway. Was an easy fix.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bretth
post Sep 12 2016, 08:13 AM
Post #7


Senior Member
***

Group: Members
Posts: 899
Joined: 23-June 15
From: Central TX
Member No.: 18,882
Region Association: Southwest Region
Is the 1.8 914 and 2.0 bus the same circuit board? I know Automotion sells a rebuilt 1.8 for under $150 if I remember right. Was in their catalog but can't find it online at the moment.

Brett

QUOTE(djway @ Sep 12 2016, 04:02 AM) *

I found a bunch of old baywindow 2.0 AFM's cheap and I got one with a nice board and just swapped them. I made an air fuel ratio meter that I could clamp onto the stock exhaust pipe. I used that to set the spring tension so that I ran at 14.7 at 3000 rpm on the highway. Was an easy fix.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
andrewvolsen
post Sep 12 2016, 10:11 AM
Post #8


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California
Brett,

I was able to find the rebuilt 1974 1.8 MAFs through that catalog. The image shows a sticker for "Fuel Injection Corp" as the actual re-builder of the units. Have you purchased one of these before? Was it a quality rebuild?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · FS/WTB: 914 Parts · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 9th June 2024 - 07:15 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...