My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 http://www.piercemanifolds.com/carbdetails/explviewparts/32_36_DGV5A.pdfIs this the same as your one Chris? Similar but different, i can't remember the model name but mine is the model with the auto choke ... i have a similar digital copy from nick of my one if you would like to view it? Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 fix your compression first as said 2 cylinders with low compression is going to give you a rough idle Can of compression anyone? Nah I fully agree with Joeseph here, having half the compression on two cylinders isn't going to do good for the drivability of the engine. I would definitely get that head off (after checking tappets aren't too tight) and find out what's stopping the valves from sealing properly, and then rectify that. Did you say you had a spare carb? If so try using that and see if anything changes. Thats what i would of thought to but i know sweet fuck all about engines. Swaped the intire carb with another spare one i had and it didn't change a thing. Then added a breather and that reduced the smoke but still signs of smoke. Quote Link to comment Share on other sites More sharing options...
Requiemk Posted February 19, 2009 Share Posted February 19, 2009 Valve steam seals could be gone aswell giving you smoke and rough idle? all this is guessing, might as well take the head off sooner than later so your not stuck in a situation where you don't have time to find another head/valves Quote Link to comment Share on other sites More sharing options...
Unclejake Posted February 19, 2009 Share Posted February 19, 2009 Similar but different, i can't remember the model name but mine is the model with the auto choke We need to consider/eliminate that too. I should have thought of it before. It is electric (with a bi-metal scroll) or water activated? @ Other helpful chaps talking about compression: I have seen the car and fiddled with it a bit on Monday night. There is a serious overfueling issue. If you were able to see/hear/smell it yourselves you would most likely agree that it is fuel system related Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 Similar but different, i can't remember the model name but mine is the model with the auto choke We need to consider/eliminate that too. I should have thought of it before. It is electric (with a bi-metal scroll) or water activated? @ Other helpful chaps talking about compression: I have seen the car and fiddled with it a bit on Monday night. There is a serious overfueling issue. If you were able to see/hear/smell it yourselves you would most likely agree that it is fuel system related Its got water plumbed to run through the auto choke, gaz thought this could be a potential problem also. I thought the majority of overfueling had gone away with the introduction of the breather or am i wrong gaz? We have not done much testing since installing it as nabours complained and was doing gaz car last night. When i test drove it around the block there was no smell of fuel like it used to have when secondaries opened, but it did stall every time i slowed down and as the fluctuating idle came on. Basicly it drove really well, but every time i had to slow down it stalled on me. I also want to replace my battery terminals, as they are caroded, i just need to find some large crimpers / lugs. UJ do you or Aiden have large crimpers? Keen to test fuel flow UJ to eliminate that as a potential problem. Quote Link to comment Share on other sites More sharing options...
Unclejake Posted February 19, 2009 Share Posted February 19, 2009 [i also want to replace my battery terminals, as they are caroded, i just need to find some large crimpers / lugs. UJ do you or Aiden have large crimpers?. We borrowed some crimpers from Jacob and I think they are still at the workshop. Buy the terminals and we can crimp Satrurday afternoon Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 [i also want to replace my battery terminals, as they are caroded, i just need to find some large crimpers / lugs. UJ do you or Aiden have large crimpers?. We borrowed some crimpers from Jacob and I think they are still at the workshop. Buy the terminals and we can crimp Satrurday afternoon Mean cheers Quote Link to comment Share on other sites More sharing options...
Gaz Posted February 19, 2009 Share Posted February 19, 2009 Carb is a 32/36 DGAV, (Autochoke model of what you have posted pic of above. Has bi metalic strip and water goes through it. Still running rich but not as rich as before. Still havnt driven round block to confirm. Id say we need a valve grind at the minimum. Quote Link to comment Share on other sites More sharing options...
Unclejake Posted February 19, 2009 Share Posted February 19, 2009 Carb is a 32/36 DGAV, (Autochoke model of what you have posted pic of above. Has bi metalic strip and water goes through it.Still running rich but not as rich as before. Still havnt driven round block to confirm. Id say we need a valve grind at the minimum. It doesn't need a valve job before the wedding. It goes like a rocket. I am suspicious of this autochoke. Are they known to give trouble? If you had put a pushrod motor into this car you would not be having this trouble. Quote Link to comment Share on other sites More sharing options...
forced Posted February 19, 2009 Share Posted February 19, 2009 As others have said, you're wasting your time even looking at the fuel system when the compression isn't right. Everything is dependant on something else. There's no way a carb will ever give the right AFR with fecked up compression. You'd want to check tappet clearances first to make sure all the valves actually close...... probably not. Steve Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 As others have said, you're wasting your time even looking at the fuel system when the compression isn't right. I agree and we where aware of that from the very start. It was the very first thing UJ tried to get right on the car. its just diagnosing it thats whats causing the problem but the more advice you guys give its staring to look like valves. Quote Link to comment Share on other sites More sharing options...
Gaz Posted February 19, 2009 Share Posted February 19, 2009 Will do tappests oveer weekend as planned. Hopefully some are tight and this rectifies some things. Quote Link to comment Share on other sites More sharing options...
Unclejake Posted February 19, 2009 Share Posted February 19, 2009 I probably can't help Saturady now, but can do Sunday afternoon. If Saturday becomes possible I will hoolaa Sorry for the mucking around Quote Link to comment Share on other sites More sharing options...
Mk1Mad Posted February 19, 2009 Share Posted February 19, 2009 make certain nothing else is dodgy, Haha. Better just throw the whole car away then.... Im mean, nah, nah its all sweet as.. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted February 19, 2009 Share Posted February 19, 2009 had the same sort of problem with my van mate was fine sometimes and while driving it it would start running like a bag of shit . puffing smoke, fouling the plugs i have the weber with the auto choke just removed the chokes and it runs like a dream and no bogging down at all. Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 19, 2009 Author Share Posted February 19, 2009 Ok that sounds re asuring ... how do you go about removing the auto choke can you literally just remove it of the side and take the rotating buterfly choke type bit out? The only thing is what are the chances of that happeneing on two different carbs? But definatly someting to look at, as there is a change from whem whan the car starts cold to when it warms up so could be something to do with that. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted February 19, 2009 Share Posted February 19, 2009 Ok that sounds re asuring ... how do you go about removing the auto choke can you literally just remove it of the side and take the rotating buterfly choke type bit out? i will remove it completely when i get back from auckland but for now i just remover the 2 chokes and the shaft. runs so much nicer mate Quote Link to comment Share on other sites More sharing options...
Gaz Posted February 20, 2009 Share Posted February 20, 2009 Just to add. I think KK followed it last night and said it was blowing minimal black smoke so may not be running rich anymore. Will know Sun when we do some work at UJ's on it. Quote Link to comment Share on other sites More sharing options...
Vai-Man Posted February 20, 2009 Share Posted February 20, 2009 Ok that sounds re asuring ... how do you go about removing the auto choke can you literally just remove it of the side and take the rotating buterfly choke type bit out? i will remove it completely when i get back from auckland but for now i just remover the 2 chokes and the shaft. runs so much nicer mate Agreed the auto choke on the DGAV is notoriusly bad in my experiences with them, remove the linkage and buterflys, you can also remove the choke and join the water lines together if you want. they run nicer just a bit harder to start and get up to temp haha. And if your auto choke if fucked parts are hard to come by so a manual conversion is a good idea. Quote Link to comment Share on other sites More sharing options...
cheater_5 Posted February 20, 2009 Share Posted February 20, 2009 I envy the large group of OS cunts around to help you out. Many minds are > than one. Good luck Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.