Tazio Posted January 11, 2022 Share Posted January 11, 2022 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 Link to comment Share on other sites More sharing options...
Terry Field Posted January 11, 2022 Share Posted January 11, 2022 Never did it on mine and no problems over 15 years and 55k miles Link to comment Share on other sites More sharing options...
john g Posted January 11, 2022 Share Posted January 11, 2022 Alan I concur with Terry Link to comment Share on other sites More sharing options...
7 wonders of the world Posted January 11, 2022 Share Posted January 11, 2022 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.... Link to comment Share on other sites More sharing options...
timb2117 Posted January 12, 2022 Share Posted January 12, 2022 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 :) Link to comment Share on other sites More sharing options...
Tazio Posted January 12, 2022 Author Share Posted January 12, 2022 Actually Neil, I'll have you know i have you know I have 38bhp per cylinder..... Link to comment Share on other sites More sharing options...
Tazio Posted January 12, 2022 Author Share Posted January 12, 2022 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. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 12, 2022 Member Share Posted January 12, 2022 "... and it fried the alternator about every 10 months which was cool coz I kept getting new ones under warranty :)"No charge?; - )Jonathan Link to comment Share on other sites More sharing options...
womas Posted January 12, 2022 Share Posted January 12, 2022 Alan, this is my solution since 30 yearsWomas Link to comment Share on other sites More sharing options...
rkeywood Posted January 13, 2022 Share Posted January 13, 2022 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 Link to comment Share on other sites More sharing options...
John Vine Posted January 15, 2022 Share Posted January 15, 2022 Re #8:No charge?That's truly awful, Jonathan. Keep them coming!JV Link to comment Share on other sites More sharing options...
ECR Posted January 15, 2022 Share Posted January 15, 2022 It's the diode that normally fails and that can be mounted remotely away from heat. The Denso on my vx is quite near the exhaust and it hasn't proved to be a problem. Wrapping the exhaust does seem to "dry out" the metal. Link to comment Share on other sites More sharing options...
ECR Posted January 15, 2022 Share Posted January 15, 2022 It's the diode that normally fails and that can be mounted remotely away from heat. The Denso on my vx is quite near the exhaust and it hasn't proved to be a problem. Wrapping the exhaust does seem to "dry out" the metal. Link to comment Share on other sites More sharing options...
Iamscotticus Posted January 19, 2022 Share Posted January 19, 2022 I see exhaust manifolds with cap head bolts.....I had them until after an accident (not too bad)I realized what a pain it would be if those bolts sheared off.Im going to studs for that reason. Ugly, yes, but better than extracting on the head. Link to comment Share on other sites More sharing options...
Iamscotticus Posted January 19, 2022 Share Posted January 19, 2022 Try this?Jaguar E-Type Series 2 Alternator Heat Shield 4.2 Petrol 1968-1971 C25812 | eBay Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 19, 2022 Member Share Posted January 19, 2022 Jaguar E-Type Series 2 Alternator Heat Shield 4.2 Petrol 1968-1971 C25812 | eBayJonathan Link to comment Share on other sites More sharing options...
Wrightpayne Posted January 19, 2022 Share Posted January 19, 2022 Re cap heads - the primaries are too big to let a hex head pass. Link to comment Share on other sites More sharing options...
Tazio Posted January 20, 2022 Author Share Posted January 20, 2022 Thanks everyone, I've gone the DEI Titanium Heat Wrap route, so time will tell.Alan Link to comment Share on other sites More sharing options...
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