aux shaft
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royce71
aux shaft
I have a broken aux shaft and would like to keep my mechanical pump, I have an extra shaft. What is involve in switching out the aux shafts or should I just go electric? Then after posting this I took out the aux shaft without trying very hard, now I can't get the new one in, any ideas?
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mdrburchette
- Posts: 5754
- Joined: Wed Jan 25, 2006 5:49 am
- Your car is a: 1972 Fiat 124 Sport
- Location: Winston-Salem, NC
Re: aux shaft
Most people cut the aux shaft and plug the hole. Hard to believe yours is bent. On mine, everything it hit gave before the shaft did. The lobe did show uneven wear though.
1972 124 Spider (Don)
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
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royce71
Re: aux shaft
Actually I think the PO cut the shaft, but I would prefer a mechanical pump if possible and I have 2 extra shafts and I bought a new mechanical pump before I knew it was cut as the PO left the mechanical pump in place.
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narfire
- Posts: 3959
- Joined: Sat Dec 27, 2008 2:14 am
- Your car is a: 1980 124 spider
- Location: Naramata B.C.
Re: aux shaft
CAREFULL!!!! If the aux shaft is broken, where did it break? The shaft sits on two points/journals? You pull the shaft out easily enough,does not take any extra pull or anything like that BUT if it is in fact broken and the new one does not go in,perhaps the back part is still in there.
I recently helped a fellow with the same problem. Took the intake manifold off. Took the mechanical fuel pump off and could then feel the back of the aux shaft. I was luck to get an easy out in the oil passage way of the back of the shaft and tried to spin and pull but no luck. Ended up falling into the crank and eventually the oil pan. So jacked the engine up after undoing the mounting nuts and dropped the pan and dug out the back of the shaft and the botton of the oil pick up that was broken off as well. Make note as I was told not all year aux shafts were interchangable if using a mechanical pump. We were working on a 79 and was told earlier shaft lobes might note be compatable.
Chris
I recently helped a fellow with the same problem. Took the intake manifold off. Took the mechanical fuel pump off and could then feel the back of the aux shaft. I was luck to get an easy out in the oil passage way of the back of the shaft and tried to spin and pull but no luck. Ended up falling into the crank and eventually the oil pan. So jacked the engine up after undoing the mounting nuts and dropped the pan and dug out the back of the shaft and the botton of the oil pick up that was broken off as well. Make note as I was told not all year aux shafts were interchangable if using a mechanical pump. We were working on a 79 and was told earlier shaft lobes might note be compatable.
Chris
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
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royce71
Re: aux shaft
The new one goes in all but maybe .5cm, also I had my finger in the fuel pump hole feeling around and didn't feel anything. But maybe I should check again.
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TulsaSpider
- Posts: 1547
- Joined: Tue Apr 29, 2008 7:33 pm
- Your car is a: 1978 Spyder 124 2L
- Location: Tulsa, Ok
Re: aux shaft
will the "holding plate" go on and flush to the block?
1978 Spyder 1800 make that 2L! Finally making real progress!
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So Cal Mark
Re: aux shaft
I've seen used shafts that are slightly bent from contact with a connecting rod. Put it on a flat plate and roll it, the bent ones are obvious. I'm assuming you have the oil pump drive gear out?
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royce71
Re: aux shaft
No I don't, is that why I can't get the other one in? How do I get it out?
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royce71
Re: aux shaft
I took the oil pump drive gear out and its still not going all the way in, I rolled it and it doesn't seem bent and it goes in and out of the old block fairly easily. Should I force it in? The motor it came out of is 132 034 16125M I was told it was from a spider but I can't find these numbers on Mirafiori. Also there is no hole for the fuel pump. Not even a blocking plate.
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narfire
- Posts: 3959
- Joined: Sat Dec 27, 2008 2:14 am
- Your car is a: 1980 124 spider
- Location: Naramata B.C.
Re: aux shaft
Any way to show a picture? No mech. fuel pump access?
Try and advance the engine a tad,very small chance the #2 con rod is down and blocking? I'd guess you would have turned the shaft while trying to slide it back in.
Try and advance the engine a tad,very small chance the #2 con rod is down and blocking? I'd guess you would have turned the shaft while trying to slide it back in.
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
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royce71
Re: aux shaft
This a picture of an extra block I have where there is no mechacnical pump access however it did have an auliliary shaft with a lobe for a fuel pump and looks like the right size for my 2.0 but doesn't quite fit, is this a compatible block?
