(Don S)volvo 230 timing belt problem

[imported_raymond2688]

hey don
Im writing you because you have been right on all my other issues. I am replacing my timing belt and I am having trouble getting everything right. I have a new tensioner on it. I am a bit uncertain as to the crank mark there is a keyway deal on the shaft that I believe i line up with the line on the block but when i do that the piston is not at the top it is all the way down. maybe i am missing something. I have the volvo manual but it does not seem to be right any words of wisdom will be helpful.
Thanks
Raymond

 

[Don S]

Re: (Don S)volvo 230 timing belt problem

Is this what your manual shows?

NOTE! Adjust the markings of the belt as follows: Two lines
against the marking of the crankshaft guide plate
and one line against the marking of the intermediate
wheel. The last marking, also one line, against the
marking of the camshaft gear.
NOTE! At the crankshaft marking, the belt must be
pushed down into the correct tooth gap for checking.

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

I guess you were directing your question to Don so I will not answer it. While I agree that Don is an expert, there are also lots of other knowledgeable people on this site.

Have a great day,

Rob.

 

[imported_raymond2688]

Re: (Don S)volvo 230 timing belt problem

yes that diagram is correct....but I dont have that mark on my guide plate and it is a new one.
Thanks

and I welcome all other advice as usual

 

[Don S]

Re: (Don S)volvo 230 timing belt problem

Then you have the wrong guide plate. There are several different ones, make sure you get the proper one.

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

I am going by memory because it has been a few months ago since I changed mine. But if I remember correctly, the position of that guide plate is irrelavent. The timing mark is on the crankshaft pulley which is indexed to the crank by the keyway. You time it based on the notch in the pulley not that guide plate. So just install that guide plate how you wish and then make sure that my memory is correct regarding the crank pulley. Also make sure the timing belt sprockets are clean and free from rust or the rust will cause the belt to jump and ruin it in no time.

Have a great day,

Rob.

 

[Don S]

Re: (Don S)volvo 230 timing belt problem

The timing mark is on the crankshaft pulley which is indexed to the crank by the keyway.

The marks are not the same for setting the timing and installing the timing belt.

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

You are correct Don. There is a dot on the crankshaft timing belt drive that must be aligned. The belt is indexed to TDC by the notch in the inner belt guide, that lines up to that gusset on the cover, and then the line on the belt lines up to the dot on the crank timing belt drive. My whole point was that the fact that there is no notch in the outer guide plate is irrevalent. That is not the timing mark, that is on the crankshaft fan belt (not timing belt) pulley which is indexed by the keyway. As long as everything else is lined up, the fact that there is or is not a notch in the outer guide plate does not matter.

Hope this helps. Have a great day.

Rob.

 

[imported_raymond2688]

Re: (Don S)volvo 230 timing belt problem

i believe i need top dead center on the piston the problem i have is the cam if i do that the cam seems not to be in line because i turn the engine over and it seems no compression......my problem is lining the cam with the crank and I have all marks on cam shaft and the intermediate pulley. this thing is frustrating me.....one time i have compression but it dont start the next i have none...hope this helps....i wish it was as easy as lining up the marks cause i would have done it at least 20 times by now...thanks for all the posts

Raymond

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

You line up the crank as per your manual, at TDC. Line up your cam, I believe with the mark on the belt sprocket at the top. Then line up your accessory drive. Put the belt on with the lines painted on the belt located at each of the marks on the three belt drives. It is really simple. If your belt is lined up correctly and you are not getting compression, then your problem is elsewhere.

Have a great day,

Rob.

 

[imported_raymond2688]

Re: (Don S)volvo 230 timing belt problem

ok it is hard to describe this online.....I have lined all dots and lines on the belt.......The double lines on the belt are on the crank and the dots on the cam and the auxilery pulley are lined up. all that is right and not a problem...the problem is with the crank at top dead center and the cam on the dots i turn over the engine and it sounds like it has no compression which leads me to believe the valves are opening bacwards....so i pull it all apart turn the cam 180 or around again and hook everything up and i turn it over and it sounds like the compression is back but it will not start ...so I either still have someting not set right or something......I have had alot of problems with this boat and have been able to fix them all but this is just @#$*&^

Thanks for all the input

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

I don't think that turning you cam 180 degrees will make any difference to the compression. Remember the crank turns 2 revs while the cam only turns 1. But it will put your timing out by 180 degrees. With the belt installed, put #1 at TDC then check your distributor to make sure the rotor is pointing to #1 then try starting it. It sounds like the distributor is out .

Good luck.

Rob.

 

[imported_raymond2688]

Re: (Don S)volvo 230 timing belt problem

ahh excellent idea i have been so stunded by this problem because it is so simple but some how i have just got it very messed up...I will try this...what kind of boat are you pushing with your engine.
Thanks rob i will let you know how it works

 

[Robj]

Re: (Don S)volvo 230 timing belt problem

I have an 18 foot Excel Bowrider that I just finished rebuilding. New stringers, transom floor, and interior. I did not rebuild my engine, but did alot of pm, including changing the timing belt. How is the tensioner bearing. If it is noisy, you should replace it, get one from an automotive jobber, they are cheaper than VP. Another thing that you may want to consider is getting rid od the points and going electronic. That is what I did and it works great. Let me know how you make out with your belt.

Good luck and have a great day,

Rob.

 

[bruceb58]

Re: (Don S)volvo 230 timing belt problem

If you are still having trouble and the manual is not helping you, you might try looking up on the internet for instruction for Volvo B21 and B23 engines for the timing belt instructions. These are the exact engines used in the auto applications. It is possible you might get some addition insight reading something new.

I have done this belt many times in auto applications and is pretty fool proof. After you put on the belt, rotate the engine two revolutions to verify everything is still lined up and that the rotor is pointed at #1 at TDC.