'85 245 timing mark strobes @ 90 deg

93Regina · Post by **93Regina** » 17 Jun 2014, 12:35

Mr Sabetodo wrote:what's the gel made of?

Volvo stated in service manual to get new wiring harness when plug is removed from ignition box.

Its just a water-proofing material

93Regina · Post by **93Regina** » 17 Jun 2014, 12:41

Mr Sabetodo wrote: timing mark

When this was stated,

" It runs much better when the distributor anchor bolt is removed and the distributor is rotated clockwise past the limit of the anchor bolt slot. If I continue to rotate it, the strobe mark moves back to the 12.5 deg mark where technically it should be."

it informs me there is a timing belt issue.

Chrysler Box - Pretty much bullet-proof...if timing changes when vacuum is applied, its working fine. Do note, it has mechanical (RPM) and vacuum advance properties...so if timing does not change at an idle, then use a higher rpm to test vacuum advance.

Post by **Mr Sabetodo** » 17 Jun 2014, 12:47

I changed the belt and it was the same before and after. the marks and dimples all lined up. is it possible the pickup inside the distributor could be rotated?

Post by **Mr Sabetodo** » 17 Jun 2014, 12:52

93Regina wrote:
Mr Sabetodo wrote:what's the gel made of?
Volvo stated in service manual to get new wiring harness when plug is removed from ignition box.

Its just a water-proofing material

Won't removal expose the electronics to the weather?

Post by **jimmy57** » 17 Jun 2014, 18:06

The harnesses on the Chrysler ignition boxes were problematic. Volvo had that recommendation due to terminals loosening. They have been unplugged thousands of times with no ill effects. Your 85 has the improved connector from build.

The circuit board can be sealed with cheap clear silicone sealer like you'd use for sealing a window, tub, or sink.

Post by **Mr Sabetodo** » 17 Jun 2014, 19:04

cool, I'll try it.

[later] nope, still the same. It's possible that there's still some problem with it, but re-soldering the wires didn't affect it.

lummert · Post by **lummert** » 17 Jun 2014, 20:36

Mr Sabetodo wrote:I don't have a plug with threads that match so I lined up the timing mark w/ TDC on the cover and looked inside with my cheap boroscope from amazon. it appears to be 1/2 tooth off but that's perspective because I couldn't see straight down because the distributor drive wheel is in the way. Everyone I've talked with seems to think that it's a fault of alignment. I'm 99.9% sure that it isn't. This engine has 3 computers and several sensors that will put it into limp-home mode. I think Its one of them and I've replaced all but one (under the glovebox) because it looked new. The replacements were from ebay so it's possible they're bad too. sadly I don't know which one & I'd rather not replace them all again. I suspect the one on the right wheel well because it controls timing. Is there a way to test it?

lummert · Post by **lummert** » 17 Jun 2014, 20:39

Mr Sabetodo wrote:I don't have a plug with threads that match so I lined up the timing mark w/ TDC on the cover and looked inside with my cheap boroscope from amazon. it appears to be 1/2 tooth off but that's perspective because I couldn't see straight down because the distributor drive wheel is in the way. Everyone I've talked with seems to think that it's a fault of alignment. I'm 99.9% sure that it isn't. This engine has 3 computers and several sensors that will put it into limp-home mode. I think Its one of them and I've replaced all but one (under the glovebox) because it looked new. The replacements were from ebay so it's possible they're bad too. sadly I don't know which one & I'd rather not replace them all again. I suspect the one on the right wheel well because it controls timing. Is there a way to test it?

You may have those timing belt guide washers switched. I'm thinking that the washer with the timing mark doesn't go on last. But I don't know for sure if it would change the location of the timing mark.

93Regina · Post by **93Regina** » 17 Jun 2014, 20:54

Mr Sabetodo wrote:Won't removal expose the electronics to the weather?

Chrysler Ignition Box - I've pulled the plug out, and applied silicone grease without an issue. Electronics inside have epoxy or something covered on them.

Main point is those contacting pins make good electrical contact. So, if you buy one off of ebay, clean up contact pins, and make sure plug has those female pins cleaned too. Then apply lots of silicone grease (dielectric grease).

93Regina · Post by **93Regina** » 17 Jun 2014, 21:00

Mr Sabetodo wrote:Everyone I've talked with seems to think that it's a fault of alignment.

Did you follow these instructions

You ran a string line, yes?

Check rotor's position when done, yes?

'85 245 timing mark strobes @ 90 deg

Re: '85 245 timing mark strobes @ 90 deg