Hi Guys,
While replacing injector heat sheilds, I noticed that the heat sheilds had visably different sized orifices.
So,I measured the orifice sizes and found quite a variation. I would have thought this to be a critical dimension,possibly effecting spray pattern ?
Old heat sheild orifice dia = one @ 0.198"
three @ 0.212"
New heat sheild orifice dia = two @ 0.214"
(purchased from Autohaus) two @ 0.218"
Should I be concearned with this ?
Another question:
First a little history:
I have an 82 caddy,with a 1.6NA.
Replaced timing belt,tensioner(used dial indicator)
Set pump timing to .98"
Starts instantly-ran great.
Then IP front seal started leaking.
I resealed the IP
Did the Gov Mod
Did the advance mod (removed the thick washer)
truck sat for a week,before I had the time to put it back together.I had all injectors capped and all fittings on IP capped,while it was apart.
Put everything backtogether and timed at .98" agian..and tripple checked timing.
It still starts instantly,but runs really bad,for the first 1 or 2 minutes.It actually feels like the engine is "bucking"..not just "missing".
There is NO air in the fuel lines..at all. The symptom feels different as well. I have had air in the lines before...and that feels more like "missing"..until the air purges out.
This feels more harsh..like "bucking".
Once the engine runs (smokey while "bucking") for a couple of minutes,then the engine smooths out. I have to keep my foot on the gas pedal,to keep it running,for the first few minutes as well. When the engine is running, I can hear something "clacking". It is more noticable,as the engine warm up. This is a mechanical 1.6NA and never made this sound before.
Do you think ,maybe something got into one of the injectors,while I had it apart ?
I figured that might explain the "clacking" and smokey starts.
Would it also cause the "bucking" ?
I have never encountered this before.
(glow plugs were replaced recently as well)
Any help,would be greatly appreciated.
Thanks in advance,Mike