Ferrari Mailing List: Re: valve for by-pass

[cjromero (clyderomerof4]

Send me a picture 

Clyde 

Sent from my iPhone

On Jun 24, 2013, at 9:39 AM, Michael James <cavallino_rapante [at] yahoo.com> wrote:

This looks like a BOSCH part - tell your mechanic to look alittle harder.

 

I see that part number for a Testarossa, Mondial, and 328....SOMEBODY has this on a shelf somewhere.

 

M J

--- On Mon, 6/24/13, Michel Savard <mysavard [at] videotron.ca> wrote:

From: Michel Savard <mysavard [at] videotron.ca>
Subject: [Ferrari] valve for by-pass
To: "Michael" <Cavallino_Rapante [at] yahoo.com>
Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
Date: Monday, June 24, 2013, 9:26 AM

1981 308 GTSi: My mechanic tells me my valve for by-pass (#115741) is broken and Ferari does not provide them anymore. That is the reason I get backfires regularly when I get stuck in traffic in 2nd and 3rd gear at anything around 3,000 rpm. In 4th gear and 5th, there is no problem. But as soon as the engine is very hot (190+) and I stay at around 3,000 rpm, I get small backfires all the times. My mechanic tells me not to worry about it.

If I keep the revs going up in a steady matter, it's no problem at all. Beautiful sound, but as soon as I'm stuck in low rpm (again around 3,000), then the backfires start.

In the past 2 years, I changed the injectors, plug wires, connectors, extenders and last spring gasket job without taking the engine out.

Any thoughts?

 

Michael Savard

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