Author Topic: volvo timing  (Read 4706 times)

July 17, 2010, 05:20:00 am

ian47

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volvo timing
« on: July 17, 2010, 05:20:00 am »
  Hi, I am new to this forum, I have a boat fitted with a D24T VW engine out of a 1990'ish Volvo 740 or 760. I have recently changed the timing belts (without special tools) and she is too far advanced. Can any one give me the sizes of the pump timing pin and perhaps the thread size and pitch of the dial gauge adapter. It would be fairly easy to make up the tools, they are expensive to buy just for a single use.



Reply #1July 18, 2010, 10:56:08 am

burn_your_money

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volvo timing
« Reply #1 on: July 18, 2010, 10:56:08 am »
You don't really need a pump lock for that engine (the pump is driven by the other end of the cam right?)

I think the pitch is M8X1.00. If you remove the 12mm bolt from the end of the plug you can just measure it.
Tyler

Reply #2July 18, 2010, 04:57:10 pm

ian47

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Re: volvo timing
« Reply #2 on: July 18, 2010, 04:57:10 pm »
Thanks for the help, it's not too easy to reach but I'll have a try.
 

Reply #3July 19, 2010, 11:02:10 pm

dennis

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Re: volvo timing
« Reply #3 on: July 19, 2010, 11:02:10 pm »
The 4 cylinder VW tool will work for your engine. I use an 11mm snap on socket for a timing pin. Works for the caddy as well.
1980 Caddy TD (Always in progress)
1983 Volvo 245 D24 NA Building D24T
1980 Air-cooled Westy
1956 F100 (What to do???))

Reply #4July 20, 2010, 08:28:52 am

ian47

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Re: volvo timing
« Reply #4 on: July 20, 2010, 08:28:52 am »
  "Adjustment of 700/900 D24 Diesel Injection Pump. [John Davies] The diesel injector pump is adjusted with two standard tools - a U shaped bar to fit the camshaft, and a metal plug to fit the pump. Once the camshaft is aligned to the bottom pulley(vibration damper), place the plug through the pump sprocket into the pump bracket, and then fit the rear sprocket to the cam, and fit the belt all as per the green book.

Then - and this is the bit I wish someone had told me - pull backwards gently on the belt a little against the pump spring until the plug is an easy fit - i.e. easily moveable with the fingertips - and tighten sprocket still holding belt in the same position. Once tight it should be possible to remove plug easily. If not your timing may not be quite correct, so just try again. .

Even the small amount of tension caused by the pump exerting pressure against the plug seems to affect the pump timing quite substantially - it represents about 3mm - 4mm on the outer edge of the sprocket. It doesn't sound important but it is - since learning to simply tension the belt in this way doing this I have discovered to my delight I no longer have to fine tune the pump with a clock gauge.

Just to clarify, I do not using the sprocket holding tool initially but pull back on the belt with one hand, check the plug, tighten the sprocket just a little more than finger tight with a spanner, check plug again, remove plug if satisfactory and then tighten sprocket fully with the sprocket holding tool. This makes it a one person job"
  I found this on another forum, I'll maybe try it with the 11mm socket tip.

Reply #5July 20, 2010, 04:06:02 pm

745 turbogreasel

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Re: volvo timing
« Reply #5 on: July 20, 2010, 04:06:02 pm »
If you aren't using a dial indicator, you are probably more than that many degrees out anyway, so just do it by ear...

Reply #6August 18, 2010, 08:21:00 pm

jbg

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Re: volvo timing
« Reply #6 on: August 18, 2010, 08:21:00 pm »
Thanks for the help, it's not too easy to reach but I'll have a try.
 

Hello Ian,

Have a look over at the Volvo Diesel Forum (www.d24t.com), specifically this link to help with timing:

http://d24t.com/showthread.php?125-Need-help-with-replacing-a-HG.&p=968#post968
1985 Volvo 740GLE Turbo Diesel
2010 Volkswagen Jetta SportWagen TDI

Reply #7August 21, 2010, 02:57:38 pm

ian47

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Re: volvo timing
« Reply #7 on: August 21, 2010, 02:57:38 pm »
Thank you all for your assistance, I bought the proper tools and got the job done.