installing hot start fix

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gfromleeds said:
Ah so probably best to just buy a complete kit?
the timed circuit ive got is a maplins jobbie when a positive or negative is conected it opens or closes a digital relay(depending on how its conected)
can be set anywere between 0.1second upto 3 minutes
because its all chip controlled it gives almost 0 resistance
Click to expand...
Unless you know how to connect the hot start fix, better to buy the kit.
If it's Maplin, I would have thought it's a 555 timer chip and a relay on a printed circuit board, you could experiment starting at 10 seconds and increasing until you get the desired result:)
 
I got one of the kits off ebay for my 98 dse as it would not start at all when hot fitted the kit and it now starts hot or cold but no glow plug light on when hot it takes two turns of the glow plugs when cold to get her going there new Bosch plugs in it also takes up to 10-15 seconds of cranking when hot but at least it starts and yes it drinks diesel ( 17.7 mpg ) and hasn't got great power I going to take out the eBay kit and time the pump and see will that sort it out as I feel the eBay kit is only a stop gap to improve hot starting
Oh ye there's 268,000 miles on it so I'd say it has a very slack chain
 
freemonkey said:
I got one of the kits off ebay for my 98 dse as it would not start at all when hot fitted the kit and it now starts hot or cold but no glow plug light on when hot it takes two turns of the glow plugs when cold to get her going there new Bosch plugs in it also takes up to 10-15 seconds of cranking when hot but at least it starts and yes it drinks diesel ( 17.7 mpg ) and hasn't got great power I going to take out the eBay kit and time the pump and see will that sort it out as I feel the eBay kit is only a stop gap to improve hot starting
Oh ye there's 268,000 miles on it so I'd say it has a very slack chain
Click to expand...
Surprised the chain is still there:eek:
 
I know you all think this is old hat but I found it very interesting. So, many thanks to Saint, Grit Valve, 6704Nathan and SpudH for all contributing.

When I bought my P38 a year or so ago it came with a hotfix and it has bugged me ever since I bought it but I could find no-one local who had the tools to fix it.

In answer to someone (6704nathan?) who pointed out that you could buy the tools and do it yourself ... as a, let's say, tinkerer, rather than an experienced mechanic, I'd be terrified of cocking it up completely and ending up with a non-runner. My impression is that fip timings can be a little tempermental unless you get it right.

Incidentally, I'm surprised the chain gets that slack. Knowing nothing whatsoever about it I'd imagine it would be tensioned with a spring or somesort and ratchet itself up after it slackened a set amount?

Currently I give it 2 goes of the plugs with the hot-start to ensure a quick start. Definitely a little worried now!
 
Grrrrrr said:
I know you all think this is old hat but I found it very interesting. So, many thanks to Saint, Grit Valve, 6704Nathan and SpudH for all contributing.

When I bought my P38 a year or so ago it came with a hotfix and it has bugged me ever since I bought it but I could find no-one local who had the tools to fix it.

In answer to someone (6704nathan?) who pointed out that you could buy the tools and do it yourself ... as a, let's say, tinkerer, rather than an experienced mechanic, I'd be terrified of cocking it up completely and ending up with a non-runner. My impression is that fip timings can be a little tempermental unless you get it right.

Incidentally, I'm surprised the chain gets that slack. Knowing nothing whatsoever about it I'd imagine it would be tensioned with a spring or somesort and ratchet itself up after it slackened a set amount?

Currently I give it 2 goes of the plugs with the hot-start to ensure a quick start. Definitely a little worried now!
Click to expand...

Recheck glow plugs for starters .
 
gfromleeds said:
Is there any special/unusual way of doing it? Or woruld a regular macanic be able to do it?
Click to expand...

As long as they got the dti gauge and they know what they are doing
Personaly I would go to an injection specialist as they can do it with there eyes closed and faster and cheaper;)
 
Grrrrrr said:
I know you all think this is old hat but I found it very interesting. So, many thanks to Saint, Grit Valve, 6704Nathan and SpudH for all contributing.

When I bought my P38 a year or so ago it came with a hotfix and it has bugged me ever since I bought it but I could find no-one local who had the tools to fix it.

In answer to someone (6704nathan?) who pointed out that you could buy the tools and do it yourself ... as a, let's say, tinkerer, rather than an experienced mechanic, I'd be terrified of cocking it up completely and ending up with a non-runner. My impression is that fip timings can be a little tempermental unless you get it right.

Incidentally, I'm surprised the chain gets that slack. Knowing nothing whatsoever about it I'd imagine it would be tensioned with a spring or somesort and ratchet itself up after it slackened a set amount?

Currently I give it 2 goes of the plugs with the hot-start to ensure a quick start. Definitely a little worried now!
Click to expand...

It's not slack it's stretch two differnt things the tensioner will tack up slack but if a chain has stretched this alters the position of said cog think about it in your head;';)
 
i was talking to a mechanic friend today about timing chains and such as my one needs doing as i have the hot fix issue he said a motor that has done 170 thou like mine he would recommend just changing the chains as they prob be well over due doing so better to do that than pee about with a old chain
 
mutsnutz said:
i was talking to a mechanic friend today about timing chains and such as my one needs doing as i have the hot fix issue he said a motor that has done 170 thou like mine he would recommend just changing the chains as they prob be well over due doing so better to do that than pee about with a old chain
Click to expand...
+1 mine had dine only 99k when my pump was rebuilt due to a leak on reassembly and the the final check the chain slipped eek
New chains and sprockets and tensinors later all is well .
 
Datatek said:
Before you waste cash having the timing done, it's better to check with diagnostics that it needs doing IMO.
Click to expand...

I'm mystified as how you can check it with diagnostics at you have a cps position sensor in line at tdc but diesels have no cam sensor so how does diagnostics work it out if we're a petrol maybe ????
 
What is the life of timing chains on the BMW engine?
I know the life of the jaguar ones on the the XK engine was about 100 000 miles before the chain adjuster came to its limit and popped out and then the damper broke and fell in between the chain and sprocket and the chain breaks .
Has anyone had broken chains or worn sprockets and at how many miles ?
 
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