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Misfire only at idle help video
#11

THAT"S the one RAY , THE M117 runs so much better on MEGASQUIRT . but when the timing chain goes they cost alot to fix must of the time. but if you know how to fix them you are better off. pre smog75" are easy to work on.
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#12

Well the issue is back and I'm guess it might be the fuel injector...pulled the plugs again and the socket and vice on fpr definitely made it richer except on 2 cylinders...cylinder 1 at the very front and cylinder 4 at the back 

Checked spark plug wires and all have good spark going to them, 

Cam definitely has some wear but no wiped lobes, followers are also in place and doing the job

Tried to post pics but won't allow for me some reason...cyl 1 and 4 the spark plugs basically almost white, whereas 2 and 3 are definitely richer
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#13

Here's pics darker one is what cyl 2 and 3 look like, lighter one is what cyl 1 and 4 look like

Cam...definitely more wear than last time I checked it, lobes look the same on all cylinders


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#14

Here's pics darker one is what cyl 2 and 3 look like, lighter one is what cyl 1 and 4 look like

Cam...definitely more wear than last time I checked it, lobes look the same on all cylinders


Yeah......the appearance of those plugs indicates a lot of AFR disparity between cylinders. There are probably thousands of f/inj "services" that clean and flow injectors......among the least expensive of those whose work I trust  is RC Engineering (started decades ago by the late Russ Collins = multi-engine motorcycle racer of the 60s & 70s: see pic below, taken at Lion's Drag Strip). The last time I checked, they were charging $25 each, altho shipping is probably extra (but they'll all fit in the smallest Priority Mail box for about 7-8 bux).

That slider cam looks GREAT to me, considering the amount of mileage yer TC has probably accumulated. Whatever specific engine oil has been used (assuming you KNOW), I suggest that you continue using it ~ OR one of the top ten in the "oil comparo" that I linked earlier in this thread.  <thumbup> Have you installed a f/pres gauge yet?  <shrug>

[Image: atsf1-1280x720.jpg]
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#15

(07-27-2021, 06:05 PM)TurboRay Wrote:  Here's pics darker one is what cyl 2 and 3 look like, lighter one is what cyl 1 and 4 look like

Cam...definitely more wear than last time I checked it, lobes look the same on all cylinders


Yeah......the appearance of those plugs indicates a lot of AFR disparity between cylinders. There are probably thousands of f/inj "services" that clean and flow injectors......among the least expensive of those whose work I trust  is RC Engineering (started decades ago by the late Russ Collins = multi-engine motorcycle racer of the 60s & 70s: see pic below, taken at Lion's Drag Strip). The last time I checked, they were charging $25 each, altho shipping is probably extra (but they'll all fit in the smallest Priority Mail box for about 7-8 bux).

That slider cam looks GREAT to me, considering the amount of mileage yer TC has probably accumulated. Whatever specific engine oil has been used (assuming you KNOW), I suggest that you continue using it ~ OR one of the top ten in the "oil comparo" that I linked earlier in this thread.  <thumbup> Have you installed a f/pres gauge yet?  <shrug>

[Image: atsf1-1280x720.jpg]


I'll be ordering the kirban FPR from stinger this week and I'll be getting a fuel pressure guage locally.... going to get the injectors done locally since I'm in Toronto Canada lol, and yes I'm familiar with oils that have a good amount of ZDDP, it's got 225000 KM on it, I will be upgrading to the BiG R performance high lift ranger cam eventually

I'll get the injectors rebuilt and flow tested and update the thread...compression good on all cyl, and no wiped cam lobes, got a fuel filter ready to go as well and may drop the tank to make sure there's no crud floating around
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#16

I HATE IT when there's "crud" floating around!!
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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