Topic: Right, this is serious!! (Read 76558 times)

stigster · « **Reply #325 on:** January 02, 2015, 07:28:36 PM »

Gents,

I know its tant amount to swearing on here but I used to own a rangerover P38 4.2 V8, damn thing used to do just this on me quite regularly. I found in the end that the coolant was aerating at high revs, not sure of the technicalities of why. Quite possible it was something to do with the spur off for the LPG heater, not sure but I changed the coolant for around 60% glysol and she was fine from then on.

Just a thought.

Bulldog67 · « **Reply #326 on:** January 02, 2015, 07:42:37 PM »

Cheers mate, will add it to the list

Had gone 50/50 but only as far as that

Dave The Sparky · « **Reply #327 on:** January 02, 2015, 08:50:24 PM »

So you are saying Bulldogs Jeep is a giant one of these

Oh hang on!, cant be, it says Earth friendly

bigjeepzj · « **Reply #328 on:** January 02, 2015, 09:09:58 PM »

keep telling you BD you need a flow restricter your plump is causing cavitation and high sustained revs.
http://en.wikipedia.org/wiki/Cavitation

j33pky · « **Reply #329 on:** January 03, 2015, 03:25:01 AM »

Quote from: Dave The Sparky on January 02, 2015, 08:50:24 PM

So you are saying Bulldogs Jeep is a giant one of these

Oh hang on!, cant be, it says Earth friendly

No I don't believe he is! And what's not earth friendly about the mighty 401? do you believe everything the eco bodds tell you?

Dave The Sparky · « **Reply #330 on:** January 03, 2015, 08:44:34 AM »

True, Bulldogs appears to be steam powered judging by how much water it consumes!!

Dave69 · « **Reply #331 on:** January 03, 2015, 02:15:09 PM »

shame there arn't any cheap flow meters on the market to confirm this, could try a simple pressure gauge just on the outlet of the pump, normal driving should read a stable(ish) pressure and as the temperature increases along with BD right foot if cavitation occurs around the pump impeller then the pressure should drop due to the increase in air.

Not saying this is your answer but maybe worth considering

http://www.demon-tweeks.co.uk/motorsport/water-pumps/davies-craig-ewp115-water-pump-digital-controller-combo

i ran a smaller setup on my race bike with no issues, but the bike had full flow system and pump removed and a rerouted dual rad setup, wish now i kept it after i sold the bike

wildwood · « **Reply #332 on:** January 03, 2015, 02:23:31 PM »

Electric water pump?

Seen some big blocks in a Jeep with this as an answer

Dave69 · « **Reply #333 on:** January 03, 2015, 04:02:16 PM »

i went through two water pumps on the cherokee due to cavitation literally destroying the vanes on the pump. these snail pumps are cavitation free so might be a solution (might be not)

bgbazz · « **Reply #334 on:** January 03, 2015, 04:33:23 PM »

Quote from: wildwood on January 03, 2015, 02:23:31 PM

Electric water pump? Seen some big blocks in a Jeep with this as an answer

I've seen the same thing fitted to a Ford 351cu in V8...was being used in a early model LWB Landcruiser in central OZ. I never saw it being put to the test, but the guy driving it said it worked fine. The plumbing and wiring looked a bit of a mish mash to my untrained eye.

Bulldog67 · « **Reply #335 on:** January 29, 2015, 05:31:08 PM »

So feedback from Mr Sunderland is some v corroded heads

V fixable as the spare 401 has minty original heads so a quick skim just to make sure and we are back in business

Gearbox rad fitted for belt & braces

A PITA it happened but hopefully easily fixed and not credit card maxing

jay140285 · « **Reply #336 on:** January 29, 2015, 10:45:01 PM »

Awesome

big g · « **Reply #337 on:** January 30, 2015, 02:14:11 AM »

Corroded to the point of being porous or just full o' crap?

j33pky · « **Reply #338 on:** January 30, 2015, 08:07:04 AM »

First one

Dtimot8 · « **Reply #339 on:** January 30, 2015, 07:47:32 PM »

i see'd them when i was up there
and even me as the tech wizard could tell ...
ohh mrs not so good

Bulldog67 · « **Reply #340 on:** January 30, 2015, 08:57:35 PM »

had I known you were going ya could have taken a t-shirt I had kipped in and left it in the Chief so it dont forget me

and fair play mate - driving all the way back in the TJ

Dave The Sparky · « **Reply #341 on:** January 30, 2015, 09:14:44 PM »

just wait until its your turn and you drive the chief home

Bulldog67 · « **Reply #342 on:** January 30, 2015, 09:44:34 PM »

Just make sure Bulldog Recovery Team is on stand-by

j33pky · « **Reply #343 on:** January 31, 2015, 08:47:34 AM »

Run for the hills!

Dave69 · « **Reply #344 on:** January 31, 2015, 05:57:46 PM »

should have asked for a photo to show the corroded and blocked cooling paths around the heads or lack of them

Bulldog67 · « **Reply #345 on:** April 11, 2015, 10:54:01 PM »

Big day 2mrw

Rail trip with Stan of 5hrs to the dark satanic mills manor of the KY crew & Sunderland 4x4 to pick up the Molotov, which not only no longer overheats, but also has the carb upsized from 670 to 750cfm as the old carb was fubarred with non opening secondarys - I am reliably informed it is now a wheel spinning & double the accelaration monster

Then the joy of a rock n roll 250 mile road trip home, broken up only by a cuppa & real food courtesy of Suger Witch in the badlands where Bubba resides

THE AA WILL NOT BE INVOLVED AT ANY FRICKIN POINT!!!!!!

Progress report and gloating will follow 2mrw

Ps. my WWII fire engine air raid warning siren is now attached to the roof - you may hear me passing through the country

Dave The Sparky · « **Reply #346 on:** April 11, 2015, 11:02:57 PM »

Kept that quiet didnt ya! at least you cant bring much junk if you are on a train i suppose

Bulldog67 · « **Reply #347 on:** April 11, 2015, 11:05:05 PM »

Stan is a big lad ........ can carry shit like a mule so clear up all that cable n plugs n shit so there some space for me

Dave The Sparky · « **Reply #348 on:** April 11, 2015, 11:09:36 PM »

Scrambler has vacated the premises so there is a little bit of room if you want to bring something good this time

Bulldog67 · « **Reply #349 on:** April 11, 2015, 11:11:12 PM »

gettin it sprayed at last?

Author Topic: Right, this is serious!! (Read 76558 times)

stigster

j33pky

jay140285

big g

j33pky

Dtimot8

j33pky