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Author Topic: Dellorto 35 DHLB problem  (Read 1680 times)
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blueboxer
Senior Member
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Posts: 115



« on: 04 October, 2014, 12:34:33 PM »

I purchased a set of 35 Dellorto last year and have just got round to overhauling them.
However, I have discovered a problem on one of the auxiliary venturi retainer fittings.
Basically, the thread is shot and it leaks. It looks like someone has attempted to fix before but failed so just then sold them to me!

I obtained a new retainer/bolt but can't secure this because of the poor thread.

I have a tap & die set so could probably turn a new thread. However, this will then be bigger so the retainer bolt will not fit.


It has a small spring operated part that secures the venturi which is why I've not just cut a new thread and inserted a new larger bolt to blank it off as there will be nothing to secure the venturi which will then just spin.

Has anyone else encountered this problem and if so, what was the solution? I've attached a pic in case I've got any of the terminology wrong.
thanks.




* photo-4.JPG (560.84 KB, 1296x968 - viewed 324 times.)
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Feb 1965 RHD Fulvia 2C (still running it's original engine and gearbox) and quite a few others of various marques
lancialulu
Press Officer
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« Reply #1 on: 04 October, 2014, 03:00:14 PM »

Investigate Timeserts for your thread size (what is the thread size)?
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1988 Delta 1.6GTi
1998 Zeta
davidwheeler
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Posts: 1269



« Reply #2 on: 06 October, 2014, 09:41:44 AM »

Your local tool shop will have a variety of thread inserts which are better then the original, really.
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David Wheeler.  Lambdas, Aprilia, Fulvia Sport.(formerly Appia and Thema as well).
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