Viva HC update: emissions fail! CO to high doh

[HARDCORE]

Deffo oil in the sump dude! Well, there was - we drained it & took the sump off last night, before deciding to get some sleep & come back to it today..

[sheffieldcortinacentre]

yep it is, long time time since i've had one in bits , just recall it being a common prob & couldn't remember ikf it effected oiln pressure aswell as timeing.

[bortaf]

If it's been standing for a long time the chances are the pump had drained and just wont self prime, some engines are bad for this (rover V8 being one of them), if all seems ok pack the pump with vasolene, re assemble and try again, the vas stops the pump cavitating in air and should get enough suction to get the whole system priimed, once there is oil in the pump it should be ok again IF there's no other problem that is ?

[Al Ramone]

Aug 13, 2011 11:24:22 GMT bortaf said:

If it's been standing for a long time the chances are the pump had drained and just wont self prime, some engines are bad for this (rover V8 being one of them), if all seems ok pack the pump with vasolene, re assemble and try again, the vas stops the pump cavitating in air and should get enough suction to get the whole system priimed, once there is oil in the pump it should be ok again IF there's no other problem that is ?

i've heard of this before but never tried it, surposed to be a good idea on newly built engines to get oil pressure up straight away, rather then keep cranking em over.
thou thought it was normal grease rather then vasolene.
who's done this?

[HARDCORE]

Aug 13, 2011 14:31:16 GMT Al Ramone said:

who's done this?

We have now, worked a treat

[lewist123]

Yay, would be great to see the viva at the gathering Get on it dudes!

[HARDCORE]

Colon is there today welding inner wings, I'm going up straight from work - MoT is tomorrow lastwinit.com!

[bortaf]

Aug 15, 2011 9:08:57 GMT HARDCORE said:

Aug 13, 2011 14:31:16 GMT Al Ramone said:

who's done this?

We have now, worked a treat

sweet ;D
it probably would of built up pressure eventually but may have been gamaged before it did, good luck with the MOT

[MartinC]

There is a way to achieve a similar result without engine/sump/pump removal.

Had it with a Magnum years ago. We put about 3 gallons of oil in and it pulled up pressure straight away, then we had the fun of dropping the excess oil back out!

[lewist123]

Aug 15, 2011 11:46:59 GMT HARDCORE said:

MoT is tomorrow

Well tod@y is tomorrow? Did it p@ss??

(btw the @ key on this keybo@rd is broken, so I forced to use @ to repl@ce the letter @!!!)

Lewis

[MartinC]

Maybe it's broken down and he had to call the @@!

[Colonelk]

LOL @ lewis & martin

failed on emissions (CO was sky high.... well... 8%)

So Ive got to faff with carbs tomorrow, retest thursday!

Anyone got a good photo'd guide for adjusting stromberg CD150s?

Stuff Ive found so far basically involves adjusting the needle with an allen key? (and a tool to stop the thingy rotating)

[Colonelk]

BTW, can I say thanks to everyone for the help thats been given in this thread. Makes me feel all warm and fuzzy

[HARDCORE]

Erm, no. Colon was there all day yesterday on a weldathon (did a cracking job) and I met him there after work to help change tyres around, set the valve gaps and the timing.

MoT today unfortunately failed on emissions (so the welding was good!) - hopefully just carb mixture, or something non-sinister. Retest Thurs, immediately before driving to RRG ;D

[HARDCORE]

Bah, too slow

[craig]

Has your carb got a bigish brass nut on the bottom or is the float bowl sealed?

[Colonelk]

Will pop and look chap.

[craig]

If it's a Viva CD150 it should have the brass nut under the float bowl. These are curse word, turn it and you risk breaking the 'O' ring causing a fuel leak on to the exhaust. I'm sure you unscrew it to richen it and screw it in to weaken the mixture. You might be able to move the needle but i'm sure they're fixed on the earlier carbs.

If it's a Later Chevette carb it'll be adjustable from the top and the float bowl will be sealed to prevent leaks onto the exhaust. You'll need a tool to wind it up or down. I've got one i made which i can send you tommorow via next day if you want to borrow it? Just give it to Si or Steve at the gathering to bring back this way.

[Colonelk]

there is "some" form of lug / nut on the bottom, tis covered in gunk so hard to tell.

[craig]

Hang on, i'll get a pic of mine.