timing gear & 1 7/16" socket

moggieman · Dec 29th, 2008, 16:17

Does anyone have a steel timing gear for a B18 they could sell me? I think my fibre gear may have gone but don't want to spend £120 on a new one just in case it hasn't. I'm also looking for a large 1 7/16" socket to undo the nut that holds it on. Thanks, David

agent_strangelove · Dec 29th, 2008, 17:21

I think the going rate for steel timing gear is about $200 USD or 120 pounds. if you have torn into the engine far enough to get the fiber gear off, then you should go to steel. I have had fiber timing gear last 60,000 miles and others sets, blow up on start up of a rebuilt engine. Therefore, I don't use fiber anymore, even on stock engines.

As for your other post about getting the old one off, you should be able to turn the nut off (you may have to put the car in gear, parking brake on) and use a small 3-jaw gear puller with the fingers in the three holes in the face of it. I have never had a gear that I could pull off with out a puller. It's not a hard pull but you need one. Check the brass cam retainer plate for wear while you are in there. There are not available from Volvo (north american anyway) anymore but if you bug your local Volvo Penta dealer they still have them and it's the same part number. Also if you are going to reuse the old gear, make sure it has timing marks on it and/or check the new one for timing marks before removal of the last one to make sure you get things lined up again.

Good luck!

moggieman · Dec 29th, 2008, 20:45

Thanks - it's good to know how do it it. If things get that far, I would replace with a steel version.

stuart bankier · Jan 4th, 2009, 10:42

I may have a steel timing gear in the garage. I will have a look

Stuart

Alf ista · Jan 4th, 2009, 11:54

Is it true that the steel timing gear is more noisy than the fibre ones? That might be a consideration.

Derek UK · Jan 4th, 2009, 13:01

You can't just swap over the steel timing gear as it needs a matching crank gear. The teeth are different. Change as a set.
Noise increase varies but if it's loud just say it's your supercharger.............

agent_strangelove · Jan 5th, 2009, 17:34

Personal experience is that the first 500-1000 miles there is more of a metallic/tinny/wizzing noise to it but after that it quiets down and you really can't notice. Also if you are in there, make sure the brass elbow that sprays oil into the bight of the gears is clear. If that sprayer plugs, you get undue wear in the gears (fiber or steel).

And yes, you should swap the gears as a set. Most times the teeth are different anyway as Derek said...

Chris

1966 122s · Jan 6th, 2009, 22:06

a 32 mm spanner will fit the nut if that is of any help. As above, I found that I had to put the car in gear with handbrake on to fix cam and crank before turning the nut. Don't over-tighten the nut when ref-fitting or you will end up having to replace the cam as I did !

I hardly noticed any increased noise.

"The most expensive part is your time"
(I keep trying to tell myself that !)

Graham

Dec 29th, 2008, 16:17	#1
moggieman Junior Member Last Online: Jul 13th, 2023 08:21 Join Date: Sep 2008 Location: Southport	timing gear & 1 7/16" socket Does anyone have a steel timing gear for a B18 they could sell me? I think my fibre gear may have gone but don't want to spend £120 on a new one just in case it hasn't. I'm also looking for a large 1 7/16" socket to undo the nut that holds it on. Thanks, David

Jan 4th, 2009, 11:54	#5
Alf ista Premier Member Last Online: Yesterday 09:08 Join Date: Jul 2008 Location: Co. Cork, Ireland.	Is it true that the steel timing gear is more noisy than the fibre ones? That might be a consideration. __________________ 1970 Volvo Amazon 131 with a B20A and an M40.

Dec 29th, 2008, 17:21	#2
agent_strangelove Pastry Engineer Last Online: Mar 3rd, 2024 21:47 Join Date: Feb 2008 Location: Scappoose Oregon	I think the going rate for steel timing gear is about $200 USD or 120 pounds. if you have torn into the engine far enough to get the fiber gear off, then you should go to steel. I have had fiber timing gear last 60,000 miles and others sets, blow up on start up of a rebuilt engine. Therefore, I don't use fiber anymore, even on stock engines. As for your other post about getting the old one off, you should be able to turn the nut off (you may have to put the car in gear, parking brake on) and use a small 3-jaw gear puller with the fingers in the three holes in the face of it. I have never had a gear that I could pull off with out a puller. It's not a hard pull but you need one. Check the brass cam retainer plate for wear while you are in there. There are not available from Volvo (north american anyway) anymore but if you bug your local Volvo Penta dealer they still have them and it's the same part number. Also if you are going to reuse the old gear, make sure it has timing marks on it and/or check the new one for timing marks before removal of the last one to make sure you get things lined up again. Good luck!

Dec 29th, 2008, 20:45	#3
moggieman Junior Member Last Online: Jul 13th, 2023 08:21 Join Date: Sep 2008 Location: Southport	Thanks - it's good to know how do it it. If things get that far, I would replace with a steel version.

Jan 4th, 2009, 10:42	#4
stuart bankier Stuart Last Online: May 24th, 2011 18:00 Join Date: Dec 2004 Location: Berwick upon Tweed	I may have a steel timing gear in the garage. I will have a look Stuart

Jan 4th, 2009, 13:01	#6
Derek UK VOC Member Last Online: Today 11:16 Join Date: Jul 2006 Location: Chatham	You can't just swap over the steel timing gear as it needs a matching crank gear. The teeth are different. Change as a set. Noise increase varies but if it's loud just say it's your supercharger.............

Jan 5th, 2009, 17:34	#7
agent_strangelove Pastry Engineer Last Online: Mar 3rd, 2024 21:47 Join Date: Feb 2008 Location: Scappoose Oregon	Personal experience is that the first 500-1000 miles there is more of a metallic/tinny/wizzing noise to it but after that it quiets down and you really can't notice. Also if you are in there, make sure the brass elbow that sprays oil into the bight of the gears is clear. If that sprayer plugs, you get undue wear in the gears (fiber or steel). And yes, you should swap the gears as a set. Most times the teeth are different anyway as Derek said... Chris

Jan 6th, 2009, 22:06	#8
1966 122s Member Last Online: Apr 21st, 2013 20:05 Join Date: Dec 2008 Location: Ireland	a 32 mm spanner will fit the nut if that is of any help. As above, I found that I had to put the car in gear with handbrake on to fix cam and crank before turning the nut. Don't over-tighten the nut when ref-fitting or you will end up having to replace the cam as I did ! I hardly noticed any increased noise. "The most expensive part is your time" (I keep trying to tell myself that !) Graham

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