Engine only runs under too much advance

Big lumps of metals and spanners. Including servicing and fluids.

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davidoft1
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Re: Engine only runs under too much advance

Post by davidoft1 »

tobydog wrote: 04 Sep 2020, 19:52
davidoft1 wrote: 04 Sep 2020, 19:41 i would suspect your distributor is failing, i would also check with another timing light, its not unusual or timing lights to be out of spec

Idle stabilizer......

more likely ignition than the cam being out 

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tobydog
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Re: Engine only runs under too much advance

Post by tobydog »

Occam.

Pun unintended 8)
Knowledge is power
1970 CU

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ajsimmo
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Re: Engine only runs under too much advance

Post by ajsimmo »

tobydog wrote:Occam.

Pun unintended 8)
Sorry, but I don't get it...Image

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937carrera
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Re: Engine only runs under too much advance

Post by 937carrera »

Occam's razor I thought, and assumed it was expressed in support of the cam being out
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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tobydog
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Re: Engine only runs under too much advance

Post by tobydog »

Occam's Razor - check and eliminate the simplest solutions first.......

Not sure if it's the cam
Knowledge is power
1970 CU

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ajsimmo
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Re: Engine only runs under too much advance

Post by ajsimmo »

Well, every day is a school day. In my 54 years I've never heard of this, and I'm not sure how I've missed it as it's the sort of stuff I usually know, so thanks for plugging that gap!

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diabolov
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Re: Engine only runs under too much advance

Post by diabolov »

Hi Mooney,

Any update on this? found anything interesting??
Autohomes Kamper 1986 WBX 1.9 DG

footstuck
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Re: Engine only runs under too much advance

Post by footstuck »

Have you checked your battery voltage static, running at 1500rpm and then at 4000?
The reason is that if your alternator is failing due to brush wear, Its voltage performance will decline with revs/demand. Low voltage can have bizarre manifestations. 
Good luck with it, flipping hate these sort of problems.
 

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ajsimmo
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Re: Engine only runs under too much advance

Post by ajsimmo »

Still no news?

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Mooney
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Re: Engine only runs under too much advance

Post by Mooney »

Hi All, sorry i haven't posted in ages, been manic at work and it saps most of my motivation for projects.

After all the helpful advice on here i looked into getting a dial guage to measure lift but the price was too high for me and i'd probably screw up the valve measurement technique. I'm planning on moving from here next year and we have different Reg requirements (no MOT!) so i'm planning to sell it and get a new one! Because of that i don't really want to spend too much more money on it and just enjoy cruising about in it. Aside from the timing being off still, it runs fine once it's warmed up (sluggish on the auto choke as the coolant part was bypassed due to corrosian and just relying on the bi metallic metal thingy). I ordered a piston stop to see if true TDC matches the markings but it wasn't long enough to stop the pistons! Turns out they're mostly made for chainsaws and motorbikes so they don't tend to be too long.

So yeah, basically it's running well enough (i think) not overheating and oil is staying the same level, and will hopefully last until spring. Due to the condition it's in I won't be able to sell it for much regardless so not worth putting too much more money and time in.

Bit of an underwhelming update unfortunately
1983 1.9 DG WBX Automatic

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