Re: Custom fan Shroud .
Posted: Mon Sep 11, 2017 4:45 am
I brazed the ends of the tubes and silver soldered the pipe into the 1/8 NPT fittings .
Page 3 of 5
Re: Custom fan Shroud .
Posted: Wed Sep 27, 2017 5:23 pm
Hey wreck are you going to make it to Warwick?
Re: Custom fan Shroud .
Posted: Thu Sep 28, 2017 6:36 am
not in the Ghia , had too many issues ,not the cooling system ! main problem was the 48 tri jets I got that were supposed to be recondition had issues with the dellorto drip in a big way . set me back to much fixing them .now chasing an exhaust leak that may be a cylinder leak . 3 of the 4 CHT's are very close but #2 is 20c lower and it's on the cylinder that I suspect the leak to be from .
looks impressive though and early days but I'd say the cooling system works better than the 911 one on my 2.3 in my Splitty . the same MGL TC-1 gauge and same thermocouples , I've devconed the thermocouple to the spark plug boss(gives me a lower reading, I know) , the same on both engines . the Split has a 103X71 with 8 to 1 comp . the Ghia has 103X78 with 10.5 to comp and has lower CHT's by about 15C . CHT's running around tonight ,30C ambient . 100 C .
looks impressive though and early days but I'd say the cooling system works better than the 911 one on my 2.3 in my Splitty . the same MGL TC-1 gauge and same thermocouples , I've devconed the thermocouple to the spark plug boss(gives me a lower reading, I know) , the same on both engines . the Split has a 103X71 with 8 to 1 comp . the Ghia has 103X78 with 10.5 to comp and has lower CHT's by about 15C . CHT's running around tonight ,30C ambient . 100 C .
Re: Custom fan Shroud .
Posted: Wed Oct 04, 2017 3:47 am
What is the melting temperature of the solder you used on the oil squirters?
Re: Custom fan Shroud .
Posted: Wed Oct 04, 2017 2:18 pm
279 C , if my case ever gets to that temperature I'm in big trouble !
I had a cylinder leak actually on #2 , both #2 and #4 are .003 shorter ,even though the decks are even. we had problems opening up the heads to the big bore because of hard spots in the castings . even though I lapped the heads the worst one ended up on a shorter cylinder, if it had been on the longer cylinder I think the crush in the annealed copper gasket would have sealed it. I've shimmed out the cylinders and will take the heads to another friend with a big Bridgeport to sort out the high spots .
I had a cylinder leak actually on #2 , both #2 and #4 are .003 shorter ,even though the decks are even. we had problems opening up the heads to the big bore because of hard spots in the castings . even though I lapped the heads the worst one ended up on a shorter cylinder, if it had been on the longer cylinder I think the crush in the annealed copper gasket would have sealed it. I've shimmed out the cylinders and will take the heads to another friend with a big Bridgeport to sort out the high spots .
Re: Custom fan Shroud .
Posted: Thu Oct 12, 2017 7:03 am
Nice work mate, looking forward to seeing this in the flesh
Re: Custom fan Shroud .
Posted: Thu Oct 12, 2017 3:05 pm
Thanks Benito . Just waiting now for Aaron Roberts to get a bit of time ,he's got a few Auto's to do first that customers are screaming for. I'll have it a Valla next year , the main reason for most of the build of the car is the Raleigh lap dash.
Re: Custom fan Shroud .
Posted: Mon Oct 16, 2017 2:19 pm
i really like the small foot print of the shroud!
Re: Custom fan Shroud .
Posted: Tue Oct 17, 2017 3:01 pm
Nice work Wreck, I am running a DTM on my 2270 Type 4, I would love to be able to come check your work out in person.wreck wrote: ↑Thu Sep 28, 2017 6:36 am not in the Ghia , had too many issues ,not the cooling system ! main problem was the 48 tri jets I got that were supposed to be recondition had issues with the dellorto drip in a big way . set me back to much fixing them .now chasing an exhaust leak that may be a cylinder leak . 3 of the 4 CHT's are very close but #2 is 20c lower and it's on the cylinder that I suspect the leak to be from . 2.6 Ghia .jpg
looks impressive though and early days but I'd say the cooling system works better than the 911 one on my 2.3 in my Splitty . the same MGL TC-1 gauge and same thermocouples , I've devconed the thermocouple to the spark plug boss(gives me a lower reading, I know) , the same on both engines . the Split has a 103X71 with 8 to 1 comp . the Ghia has 103X78 with 10.5 to comp and has lower CHT's by about 15C . CHT's running around tonight ,30C ambient . 100 C .
Re: Custom fan Shroud .
Posted: Wed Oct 18, 2017 1:30 am
Cool 66 . I'll PM you when its up and running .
Re: Custom fan Shroud .
Posted: Sun Oct 22, 2017 2:46 pm
Just a tip given to me by one of Australia's better engine builders. if your building a performance low clearance hi comp engine.After you've done your deck heights and are ready to bolt the heads on , torque up the heads to 25 pounds or so then leave it sit over night for the sealant around the base of the cylinders to go off . then carefully remove the heads and check that the cylinders are even with a straight edge . If not shim out the cylinders that are short . a few thou won't change the comp that much but will cause head leak issues like I had . my #4 and #2 were .003" shorter even though the decks were within .001" of each other .
http://www.shoptalkforums.com/download/ ... w&id=20118
http://www.shoptalkforums.com/download/ ... w&id=20118
Re: Custom fan Shroud .
Posted: Sun Nov 12, 2017 1:06 am
I guess 40mm exhaust valves are just too big for safety on AMC heads . , nothing is ever easy .
Re: Custom fan Shroud .
Posted: Sun Nov 12, 2017 7:02 pm
Nevermind... Maybe a little welding first?. 
Re: Custom fan Shroud .
Posted: Wed Nov 22, 2017 1:58 am
https://www.youtube.com/watch?v=dhHJdmpBEsU
It runs , still tuning the carbs but it runs cool
and the temps are pretty even bar #2 which reads low .I'm finding idle mixture has a big impact on head temps ,with the problems I've had with these carbs I think the low temp is more related to the carbs them the cooling system . I've thermo couples Devconed to the heads beside the plug boss so the readings will be down slightly from a sensor under the plug , so far the CHT readings are around 100c just cruising around, with an ambient of 24C .
Full throttle is leaning out so I'll fit a smaller set of air correctors tomorrow and see how that works . I'll also be going to a Megajolt ignition in the next little while . I'm happy to be able to finally drive it .
It runs , still tuning the carbs but it runs cool
and the temps are pretty even bar #2 which reads low .I'm finding idle mixture has a big impact on head temps ,with the problems I've had with these carbs I think the low temp is more related to the carbs them the cooling system . I've thermo couples Devconed to the heads beside the plug boss so the readings will be down slightly from a sensor under the plug , so far the CHT readings are around 100c just cruising around, with an ambient of 24C .Full throttle is leaning out so I'll fit a smaller set of air correctors tomorrow and see how that works . I'll also be going to a Megajolt ignition in the next little while . I'm happy to be able to finally drive it .
Re: Custom fan Shroud .
Posted: Wed Nov 22, 2017 6:30 am
Have been following along. Really nice project/nice work.