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Stripygitface

Member Since: 16 Sep 2014
Location: Kent
Posts: 78

Help from any Boat People

Trying to help my uncle, who has a Petrol Volvo Penta Engine in his boat, and needs to adjust the ignition timing on the distributor, which needs a clamp bolt released.

According to the manual this requires a Volvo special tool P/N 888863. The problem he has been having is getting hold of this tool, either to purchase or borrow.

Does anybody know where to get one, or a work around whereby the tool isn't needed. From what he has told me the space is very restricted and awkward to get to, hence why he has struggled so far to get something else to fit.

22nd Dec 2017 8:18pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

It's basically a 90° hex head tool with a hole drilled in it. Could probably make one by machining a standard Allen key?

Here is a picture pulled from google

Click image to enlarge

Is that of any use? Contains dimensions of the tool too

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22nd Dec 2017 8:26pm

Stripygitface

Member Since: 16 Sep 2014
Location: Kent
Posts: 78

How on earth did you find that information, he has been searching for weeks, and found nothing.

Very helpful, thank you very much.

22nd Dec 2017 8:29pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

2008 Defender 90 Puma 2.4 CSW Bonatti Grey

Get a tamper proof set of Allen keys,
That should sort it!

80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

22nd Dec 2017 8:33pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Stripygitface wrote:
How on earth did you find that information, he has been searching for weeks, and found nothing.

Very helpful, thank you very much.

No problem, just did a quick Google search with the part number and Volvo penta key words, as Ian says tamper proof Allen keys would do it. Just make sure they have similar dimensions

22nd Dec 2017 8:35pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

https://m.ebay.co.uk/itm/9PC-LONG-ARM-HEX-...Sw9N1V2vmd

Anything like this should do the job.

Funny enough I was googling the very same image as Grafty, but he beat me to it

80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

22nd Dec 2017 8:39pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Are metric Allen keys close enough to use? As the manual says 7/32 hex

22nd Dec 2017 8:42pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

Your right, it would pay to get the correct size!

https://m.ebay.co.uk/itm/Bondhus-Security-...CcXyORbLPw 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

22nd Dec 2017 8:57pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Nice one, you don't get that kind of service from your local marine engineer

22nd Dec 2017 9:02pm

Stripygitface

Member Since: 16 Sep 2014
Location: Kent
Posts: 78

Thank you for all your help.

The biggest problem my uncle was having was that due to the restricted access, he can't get standard security bits in, tried cutting a few down to fit, but without being 100% sure that the trial ones were the right size, he didn't want to try and get the clamp bolt undone, and do any damage to the head, as from the way he describes its location it would most likely then be an engine out job to be able to get enough access to get the bolt out by other means.

23rd Dec 2017 8:10am

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

That sounds like Volvo really thought about what they were doing with that!
By the sounds of it, it would be worth replacing with a normal bolt once you get it out. 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

23rd Dec 2017 9:04am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

According to Google it was done for Californian emissions law. It has to be set at the factory and tamper proof.

Our ATV was the same. Had to drill the brass plugs out of the carb to adjust the mixture - the dealer said that if it was running poorly due to carb adjustment then it was a new carb job

needless to say 5 minutes with a drill saved a few hundred quid

23rd Dec 2017 9:16am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Just looked, the top paragraph of the picture also says why it's tamper proof

23rd Dec 2017 9:17am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Yeah, replacing with a standard bolt may be very helpful in the future

23rd Dec 2017 9:19am

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

Sadly you won't be able to tinker with anything in a few years, the way things are going....

The other day, I was explaining to a young lad at work how a points ignition system worked,
He looked at me bemused, and said it sounds way to complicated

I showed him how you would set the points, he just said "it's easier when you can just plug it in to an ECU"
And "we're all old cars like that"

A lot of two stroke equipment is now factory set, like you say.

Times a changin

80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

23rd Dec 2017 11:42am

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