whistle and soft bulb when priming TD

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chinkostu
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Joined: 24 Sep 2014, 09:41
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whistle and soft bulb when priming TD

Post by chinkostu »

Recently the Xantias been more and more reluctant to start when its been sat. Thought it was leakoff pipes and that didnt help, have properly replaced the return line that split many moons ago and nothing.

I have noticed a prime will get it going pretty much spot on so i've obviously got air getting in somewhere, theres no leak on the filter, the seals on properly and no other obvious leaks, although i did notice that when priming if you give it a good squeeze when the bulbs hardened up theres a quiet whistle noise from the pump, almost around the compensator area. The bulb then goes soft but one squeeze and its hard again, leave it for a few seconds and it does the same.

Could it be related? Or is it whistling by design and theres something else?
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Zelandeth
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Re: whistle and soft bulb when priming TD

Post by Zelandeth »

Can't really help on this one other than confirming that mine doesn't whistle and the primer stays firm for quite a while once pumped up.
superloopy
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Joined: 30 Mar 2005, 03:25

Re: whistle and soft bulb when priming TD

Post by superloopy »

Mine's 21 yrs old and has never needed any 'artificial' assistance. Starts first time, every time although i think she's now in need of a set of plugs. Will get done soon.

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Zelandeth
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Re: whistle and soft bulb when priming TD

Post by Zelandeth »

Do you have the clear pipe between the filter housing and the pump? That could be a handy indication of whether there is air being drawn in when the car is running and the engine is revved, which would point towards a leaky line or blocked fuel tank pickup. If the fuel is draining back (you should see it run from the housing to the pump when priming) that points towards a leak on that side of things.

Leaks like this can be a real pig to find sometimes...Hopefully someone who's played this game on this engine before (I'm more used to it on ancient bus engines!) who know where the most likely trouble spots are.

Fuel filter housing I know is a favourite, but you've already said that's been checked and appears to not be at fault...