Crossflow -4 : 1 exhaust - Clearance with Alternator -Heatshield Required?

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Tazio
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Crossflow -4 : 1 exhaust - Clearance with Alternator -Heatshield Required?

I'm in the process of fitting a 4 into 1 exhaust system to my crossflow, and noted just how close the primary No 1 is to the altenator, on mine there's about an inch clearance. I'd be interested in other crossflow owners experience of whether its necessary to heat shield the altenator,  and if they have any pics of their installations.

Thanks, Alan

terryfield
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Never did it on mine and no problems over 15 years and 55k miles

Terry7

john g
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Alan I concur with Terry

7 wonders of th...
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You've only got the warm fart of 26 horses wafting through No 1 primary so that will only raise the temp to around 31 degrees.... Rofl  Getmecoat 

timb2117
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Totally in the shadow of the other guys here - but I use insulated adhesive glassfibre/ silvered turbo type heatshield on all areas around the exhaust. Including battery, wiring, sensors, and starter motor. Sorry Mr Chapman sometimes I need to add things....

I did have an awful "7 wannabe" years ago that looked like your photo in terms of proxemics and it fried the alternator about every 10 months which was cool coz I kept getting new ones under warranty :)

Tazio
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Actually Neil, I'll have you know i have you know I have 38bhp per cylinder.....Woohoo

Tazio
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Thanks everyone, my alternator is not an ACR type, it's a diddy denso, with all the connections on the top and adjacent to the number 1 primary, so I think I'll take Tim's approach, as better it's to be safe than sorry.

Jonathan Kay
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"... and it fried the alternator about every 10 months which was cool coz I kept getting new ones under warranty :)"

No charge?

; - )

Jonathan

womas
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Alan, this is my solution since 30 years

Womas

rkeywood
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Hi Alan,

I'm with the earlier posters - mine has the connections 1 1/4" from the pipe and not found the need to shield. The starter solenoid is even closer to no 3 but again no issues. I've got oil pipes to the dry sump tank running along the chassis above and below which are wrapped. I've about the same power as you and the exhaust temp' looks worryingly hot on the rolling road but never caused an problem on track or road.

R

John Vine
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Re #8:

No charge?

That's truly awful, Jonathan.  Keep them coming!

JV