Aq131A Video Please Help

[PiratePast40]

Re: Aq131A Video Please Help

... the only big problem is the outdrive is leaking at the cover where the volvo penta 275 sticker is, is that repairable cheaply? or is it bad news bears...

The leak could be the gearbox top cap o-ring, the shifter seal or o-ring, or the o-ring from the gearbox to the intermediate section. Taking off the rear cover is just two screws so it's easy to at least get a look at it.

All the seals are relatively easy but can involve a little more work than you anticipated if even more seals are compromized. Pressure and vacuum tests will go a long way toward isolating the problem and you don't want to let it slide. As the drive warm up during use, it'll build up pressure and leak at the bad seal. Then when it cools down, it'll suck water back in. You don't want that water displacing the oil. Makes for some more bad dreams!

Here's a link to a pressure/vacuum tester on ebay: http://cgi.ebay.com/ebaymotors/Volvo-I-O-Pressure-Seal-Tester-Outdrive-Leak-Detector-/270687171123?pt=Boat_Parts_Accessories_Gear&hash=item3f06367233
I bought one and use it every season as a part of winterizing. Found the forward gearbox seal leaking this year (grrrrr..). Some guys make their own. Whichever you choose, the leak needs to be located and fixed. You might even have your mechanic do the test for you and make recommendations for repairs.

When you get to the point of investigating this, start a new thread. Many of us have been or are going through this task so there's plenty of help.

 

[Brucetafer]

Re: Aq131A Video Please Help

sweet thanks guys so much, im going to try to tackle the motor issues first, the drive has no water in it thank god...

 

[Brucetafer]

Re: Aq131A Video Please Help

how long should i expect to take to do the timing belt??? im guessing 3-5 hours?? any special tools?? anything i should know before i start? also is the tensioner automatic like some? or anything i should know about that... thanks guys.

oh and come to find out the cam seal is leaking.. how hard is that to change, do i have to remove the cam? or pull it off the cam with the cam wheel off..

thanks for the help, im a noob with sohc and dohc motors, im a big block guy...

 

[Brucetafer]

Re: Aq131A Video Please Help

trying to find a part number for the tensioner, i cant find one and VP wants a grip for it.. anybody have a napa or kragen number?? i bought the belt from napa and its the same one as volvo.. anything else i should replace?

 

[PiratePast40]

Re: Aq131A Video Please Help

Belt and tensioner are the same for the automotive and marine version. NAPA should be able to help you out on that one.

 

[picklenjim]

Re: Aq131A Video Please Help

How do you know you even need a tensioner? Have you taken it apart yet?

Page 50, picture #90 shows the camshaft seal on the front. Looks like you will need to remove the cam sprocket but not the entire camshaft.

 

[sqbtr]

Re: Aq131A Video Please Help

Once you pull the cam gear the seal can be replaced. Yes replace the tensioner. All the OHC tensioners are the same. '83 240 sedan comes to mind.

The time it takes to do the job will vary. On an engine that has been on the defered maintenance plan there can be a few problem areas.

Go through everything while you are there. Raw water pump, disassemble and clean heat exchanger, I consider visual inspection of #4 exhaust port a requirement.

 

[etracer68]

Re: Aq131A Video Please Help

I first would think 185 is way to high for compression, something wrong here. I had a 125aq that I did a head gasket job on, and the timing belt was a pain getting lined up right, but got it done. The motor acted somewhat like yours is, and come to find out, I had the dist in one tooth off. Before you do anything else I would hand turn the motor to TDC on number one, then take the dist cap off and look where the rotor is pointed to, it should be right at number one spark plug wire on the cap, if its not, then you have it in wrong. You can mark the dist housing where number one is, so you can see where it is with the cap off. Just something I would look at to be sure. It will aslo let you know if your belt slipped a tooth. There are marks on the belt and gears that should all line up if its correct.

 

[Brucetafer]

Re: Aq131A Video Please Help

well ordered the seals for the heat exchanger today, and going to start ripping her apart tomorrow, i ordered a thermostat also, just to make sure all is new and fixed... also, volvo wanted 144 bucks for the tensioner and pully... ouch!! off to napa!!!

anyhow, was wondering when i replace that cam seal, if the cam sproket is a one way on off or if i have to index it... my diesel is indexable, and i didnt know that lol.. thanks again...

anything else i should replace or check other than exhaust #4??

im replacing, all the seals for the heat exchanger, timing belt, tensioner, pulley, thermostat cam seal, and going to take the pullys in to get blasted and painted, and new accesory belt... dam everythings going to be brand new on this motor lol!!!!

 

[sqbtr]

Re: Aq131A Video Please Help

All the gears are indexed, cam gear has an alignment pin.

If memory serves me, the cam gear has a shim behind it.

 

[Brucetafer]

Re: Aq131A Video Please Help

well this is a pretty damn easy job, except!!!!! getting the old nasty bolts off, i cant for the life of me get the cam gear bolt off... its lefty loosy right???

also, any info on the ignition timing?? my timing was perfect at 6 bdtc and 36 at 4K rpm, do i need to mess with that while im in there??

 

[sqbtr]

Re: Aq131A Video Please Help

Lefty loosey.

I use a 3/8 drive impact

 

[picklenjim]

Re: Aq131A Video Please Help

So if your working with the cam gear then you must now have full access to the belt. So did you crank the engine over to see if all the timing marks on all 3 sprockets line up correctly? That would have been the first thing I would have checked before messing with the cam gear. If not remove all the spark plugs and crank it over by hand and see if they do. Remember the crank has to turn 2 revolutions to make the others turn one so they will only line up every other revolution of the crankshaft, unless it has jumped a tooth and then all 3 will never line up at the same time.

Did you make any adjustments to the ignition timing while you were doing things to try to fix this problem?

That bolt on the cam gear only gets torqued to 36 ft.lbs. Shouldn't be that hard to remove.

 

[Brucetafer]

Re: Aq131A Video Please Help

well from what i could tell it was either off one tooth at the cam or at the crank, i really couldnt see too well since its tight in there... but i got the cam gear off and its a performance cam gear, i took it to my local volvo guy who builds race motors and he said its a lightweight racing cam gear and it was about 300 bucks lol!!!! the cam seal was totally toast, replaced that and the valves checked almost perfect, one was a little tight, but its exhaust im cool with that...

the only problem is the tensioner was really in bad shape, so napa had one 42 bucks and the sea water pump screws broke off in the sea water housing... thats the only thing on this motor that ive seriously had to call my local volvo guy and vent... who and why the he double hockey sticks would you put #3 phillips screws into a water pump where salt is supposed to go... DUMB!!

now all i have to do is get the crank pulley off, remove the timing cover, throw the new belt on and wait for the new gaskets and such...

my only thing is how to index the timing... it looks like im perfect with the timing as long as i dont turn anything right??

im just scared about timing, because in the past i blew up a mazda motor when i installed a new distributor, sounded like WW3 lol...

 

[picklenjim]

Re: Aq131A Video Please Help

now all i have to do is get the crank pulley off, remove the timing cover, throw the new belt on and wait for the new gaskets and such...

my only thing is how to index the timing... it looks like im perfect with the timing as long as i don't turn anything right??

im just scared about timing, because in the past i blew up a mazda motor when i installed a new distributor, sounded like WW3 lol...

Are you talking about being perfect with the ignition timing? The distributor runs off the intermediate shaft so as long as you get the belt on with the timing marks on the 3 gears lined up right (crankshaft,intermediate shaft and camshaft) then it should be on. I would check it with a timing light though when finished, it may need a little adjustment. Most important be sure the marks on the 3 gears are lined up as described on page 71 of the manual. BE SURE YOU UNDERSTAND EVERYTHING ON PAGE 71. My understanding is there are lines on the belt also to go by so that should help to make it easier. Page 72 describes how to set up the tensioner.

 

[proshadetree]

Re: Aq131A Video Please Help

Sorry about the bad info on the tune up. I hope the belt makes her sing like a bird.

 

[Brucetafer]

Re: Aq131A Video Please Help

thanks for the wishes!

yeah the intermediate shaft, i had the timing perfect before removing the belt, so im guessing the timing will change drastically if the crank timing was off... if the timing was that off say 1 crank tooth or 1 cam tooth, would i screw up the timing that much??? i know this motor will run with around 15 bdtc or more, but i dont want it to go to 0 or positive timing, that would be bad!!!

 

[picklenjim]

Re: Aq131A Video Please Help

well from what i could tell it was either off one tooth at the cam or at the crank, i really couldn't see too well since its tight in there... but i got the cam gear off and its a performance cam gear, i took it to my local volvo guy who builds race motors and he said its a lightweight racing cam gear and it was about 300 bucks lol!!!! the cam seal was totally toast, replaced that and the valves checked almost perfect, one was a little tight, but its exhaust im cool with that...


now all i have to do is get the crank pulley off, remove the timing cover, throw the new belt on and wait for the new gaskets and such...

Actually you should have removed the pulley first before the cam gear so you could have checked the belt timing marks more closely to verify that the belt had definitely jumped a tooth. It's too late to worry about that now though. If the tensioner was in bad shape as you said then it probably did jump. According to the manual I don't see it having a timing cover. Something else to watch for when you put the pulley back on be sure it is lined up with the guide pin on the crankshaft belt wheel. See page 91, photos 287 and 288.
As far as your distributor being in time it should be plenty close to get started. Just be sure to check with a timing light and adjust if needed.
Don't mean to sound like a broken record but I can't stress the importance of pages 71 and 72. Be sure to study and follow them closely.

 

[Brucetafer]

Re: Aq131A Video Please Help

yeah i already knew it was off a tooth either crank or cam, so i just started ripping the parts off, and there is a secondary and crank cover so i couldnt tell if it was crank or secondary timing... ill post more tomorrow, i got my timing stuff here so ill see if it gets going tomorrow.. thanks again..

 

[jdmac]

Re: Aq131A Video Please Help

Nobody has talked about a vacuum gauge? If the cam/ crank /dist timing marks are on the money, try a vacuum gauge . If the needle is steady 16-19 in hg that's normal. late valve timmimg would be 8-15 in hg. A leaking valve would be down 2 in hg from higest reading & a sticking valve would be intermitent flics down 4 in hg from highest reading. this may help if the timming marks are on.

Good luck