K-Jetters, check your O rings!

I think i better have a look at mine aswell. Reading this thread has got me a wee bit worried lol. When i start my motor up and rev it it hesitates quite a bit untill it heats up. Put your foot to the floor and it will stall on you. Its a 1985 k-jet 8v with 133,000 on the clock but once it gets warmed up its fine and the engine is nice and strong. So hopefully if i do the injectors it will be better and maybe a bit faster.

 

updated the pics of my old injector seals on the previous page as they had disappeared.

if this gets made into an FAQ then feel free to use the pics i've posted.

 

Any figures yet Keith?

 

right guys i put this together, what do we think is everything correct?

anything to add, maybe we could add stuff about the fuel pump, 5 injector, wur etc etc make it a full fuel system tutorial, any advice

http://www.steve-bratt.pwp.blueyonder.co.uk/tutorials/Techni cal.html

 

Infinity, are you talking about the merc injectors? had it rolling roaded with them and the Kent`s in gained 10bhp and 10lbft but that could be due to the cams alone?

Steve B, I don`t know if the 90 on valvers with the solid lines have the same coarse fitting for the injectors, may have a smaller and finer thread?

I may have the lot up for grabs when I fit the g60 stuff, merc injectors metering head etc all set up by stealth.

 

interested pm me when you know

plus just added pics to the tutorial

 

so 90 spec cars cant fit the merc injectors?

but if they get earlier spec lines they will then fit?

 

As far as I`m aware? Need someone to measure a 90 on injector or check etka..

 

Am i right in assuming that i could swap my injectors for the merc ones ? rocco gtx 1.8 8 v dx 86 hyd tappets kent cam kent vernier K+N.

 

Same again, some (all?) of the 8v injectors are the finer thread, smaller fitting. I got a set of early 8v ones from e-bay (8V) and they wouldn`t fit my `89 valver lines so I`d say the merc ones wouldn`t fit your rocco?

 

Hi Keith

I was talking about the merc injectors. you've probably got that gain from the cams??

 

Excellent work my friend. One question, with the brass seat/plastic insert does the O-ring fit between the two?

 

unfortunately i have not fitted these but id guess if there the same as the injectors it is quite obviouse where it fits when you remove the old ones

also the old seal should be in place anyway if that helps

 

i wonder if there is a different set of merc injectors you can buy that have smaller ends i dont suppose they mentioned anything when you were there keith?

 

I bought the injectors from an early Merc part number, don`t know if the changed them later on like the VW ones?

 

its possible