Oil pump mystery

General chat about the car goes in here.
Baz
Posts: 204
Joined: Thu Mar 20, 2008 4:36 pm
Your car is a: 1977 Fiat Spider

Oil pump mystery

Postby Baz » Sat Feb 03, 2018 6:43 pm

When I overhauled my 1982 2ltr (1977 body) engine I got a new oil pump to be fitted. Upon taking out the old one I found that the pickup half of the new pump was longer that the pickup that came out of the engine. Pump, otherwise, was identical. Sooooo the new pump would not fit, and I was told the old pump was part of some rally sump setup and this pump was no longer available. I removed the short pickup and joined it with the new upper pump (the old pump had poor pressure readings) Installed the modified unit and immediately the oil pressure was perfect...however, I now, upon startup, have a loud growling sound which appears to be deep seated, and this remains until the engine is warm, and from there on ok. I think this is some sort of incompatability with the joined halves. All of the belt drive components have been renewed, bearings etc. Have tried thick oils and thin oils..noise remains.

I wonder if it is possible to shorten a new pump pick up and weld the pickup mesh back on. Or does anyone know about this situation or even where I could get a new short pickup pump. Any help appreciated

User avatar
spidernut
Posts: 1905
Joined: Wed Jan 25, 2006 12:20 am
Your car is a: 1979 Fiat Spider Automatic
Location: Lincoln, CA

Re: Oil pump mystery

Postby spidernut » Sat Feb 03, 2018 6:54 pm

I had the same "growling" problem with a new oil pump that I installed in one of my former cars. Drove me nuts. Oil pressure was fine, but it would growl any time the oil was cold.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)

Baz
Posts: 204
Joined: Thu Mar 20, 2008 4:36 pm
Your car is a: 1977 Fiat Spider

Re: Oil pump mystery

Postby Baz » Sun Feb 04, 2018 1:00 pm

Did it ever go away ???

User avatar
spidernut
Posts: 1905
Joined: Wed Jan 25, 2006 12:20 am
Your car is a: 1979 Fiat Spider Automatic
Location: Lincoln, CA

Re: Oil pump mystery

Postby spidernut » Sat Feb 10, 2018 9:04 pm

No. It was a constant annoyance. I sold the car a few years ago because I had too many Fiats.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)


Return to “Fiat Spider Related”

Who is online

Users browsing this forum: No registered users and 61 guests