IPD sale Volvo Parts
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

2001 v40 won't start after timing belt+cam nseal change

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

vonladamann
Posts: 3
Joined: Wed May 30, 2018 2:08 pm
Year and Model: 2001 V40
Location: Quebec
Has thanked: 0
Been thanked: 0
Canada
vonladamann

2001 v40 won't start after timing belt+cam nseal change

Post by vonladamann » Sun Jun 17, 2018 3:09 pm

Backstory: Last time, Nov 2017, it ran, it rev'd but no speed. Once home would not start.
Local Volvo guy said compression OK, but timing belt covereed in oil + slipped a few teeth
on intake cam gear. Cleaned up oil, installed n t, both cam seals (using retainer)
crankshaft seal, +waterpump. Started but sounded out of time, so shut down.
Re-checked everything.(crank timing marks + cams). Replaced ratty coil paks, plug wires +
harness. Also VVT gear, VVT solenoid. Won't fire. Checked fuel pressure: 45psi.
Been worked on intermittently outside since Nov'17. Not ideal.



jefe
Posts: 64
Joined: Sat Jan 15, 2011 9:37 pm
Year and Model: 2001 Volvo V40
Location: Oceanside, CA
Has thanked: 2 times
Been thanked: 3 times
United States of America
jefe

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by jefe » Sun Jun 17, 2018 9:34 pm

That was a little confusing. It started after replacing the timing belt, but wasn't running well? And then you rechecked timing, replaced ignition coils and plug wires, the VVT stuff, and then it won't start?

What is it doing when trying to start it? Just cranking endlessly?

I did the timing belt job/oil clean up recently on my wife's 2001 V40 and kind of had the opposite problem. After replacing the timing belt, the car would not start. It would just crank and every now and then act like it wanted to start but wouldn't. I then discovered I had installed the plus wires that run off of the ignition coils incorrectly. Fixed that and then it started up right away, but ran rough. Discovered one of the ignition coils was no good, so I replaced both ignition coils and both plug wires. After that the car ran great.

Sounds dumb but something as simple as the plug wires out of order was enough for mine not to start.



Boosted40
Posts: 16
Joined: Sun May 27, 2018 4:31 pm
Year and Model: 2002 S40
Location: Pennsylvania
Has thanked: 0
Been thanked: 0
United States of America
Boosted40

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by Boosted40 » Mon Jun 18, 2018 10:46 pm

Have you readjusted the timing after skipping the teeth and not just marked it out of time? If it sounds out of time, it may very well be. Also, rotating the motor manually to double check timing marks may be a good way to check.

A year or two ago I did a timing belt on an older Celica, thought everything was aligned, but the tension on the belt wasn't adjusted entirely, so I was a bit off. Ended up having to adjust it a few teeth. Spun it manually and went over my timing. It ran great after that.

If everything is in working order, you have spark, etc, perhaps check to see that the valves were not harmed. But make sure that you have spark and everything else before hand. Emphasis on before hand. Hope it goes well man. Good luck.



User avatar
alschnertz
Posts: 553
Joined: Fri Apr 29, 2011 9:25 am
Year and Model: 1995 854T
Location: Connecticut
Has thanked: 1 time
Been thanked: 6 times
United States of America
alschnertz

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by alschnertz » Tue Jun 19, 2018 3:16 am

Not sure what is meant by "ran, rev'd but no speed".

Was a proper camshaft holding tool used to set the camshaft sprockets?

Did your guy realize that the crankshaft is not at TDC when setting the cam timing?


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

vonladamann
Posts: 3
Joined: Wed May 30, 2018 2:08 pm
Year and Model: 2001 V40
Location: Quebec
Has thanked: 0
Been thanked: 0
Canada
vonladamann

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by vonladamann » Tue Jun 19, 2018 5:42 am

Rev'd but no speed is what my kid said happened on way home.
4300 or so rpm, no road speed. Used Volvo cam retainer to set
cam pulleys. Crank pulley marks line up perfectly. Took it apart
twice to make sure. Crankshaft pulley between the 2 marks.
Compression: #1 180 psi, #2 180, #3 165, #4 180.
Haven't changed oil, plugs or fuel yet. Should at least fire
or run badly if the rest is OK..?
I've wracked my brain, tried the patience of the Volvo guy,
still come up w/ nothing but a Swedish Gremlin... lol



User avatar
alschnertz
Posts: 553
Joined: Fri Apr 29, 2011 9:25 am
Year and Model: 1995 854T
Location: Connecticut
Has thanked: 1 time
Been thanked: 6 times
United States of America
alschnertz

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by alschnertz » Tue Jun 19, 2018 2:23 pm

Dang, I wish I could remember if the crank was lined up between two marks. Off the top of my head, I thought it was lined up with one mark. Can't be sure though and would have to refer to my Haynes. Regardless, I know it was very hard to see whatever the crank alignment mark was.

How do you define "sounded out of time"? So it does run?

Maybe it's time to pull the spark plugs and crank it over with them connected (but not installed) to at least confirm spark.


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

jefe
Posts: 64
Joined: Sat Jan 15, 2011 9:37 pm
Year and Model: 2001 Volvo V40
Location: Oceanside, CA
Has thanked: 2 times
Been thanked: 3 times
United States of America
jefe

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by jefe » Tue Jun 19, 2018 2:36 pm

The crankshaft pulley has two teeth with marks on them which line up with a single notch on the engine in the middle of those two teeth as shown here:

These users thanked the author jefe for the post:
ICHTUS777



vonladamann
Posts: 3
Joined: Wed May 30, 2018 2:08 pm
Year and Model: 2001 V40
Location: Quebec
Has thanked: 0
Been thanked: 0
Canada
vonladamann

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by vonladamann » Thu Jun 21, 2018 6:34 am

Last night was a revelation.To paraphrase Buckminister Fuller:
If the theory does not hold up in practice, check your premises.
So I checked the compression again. #1 50 psi, #2 120, #3 120, #4 50
How come..? Think the oil seeped out as V40 was in the sun..?
I'm going to pull the plug. (as well as all the new parts)
Thanks for tips + encouragement. Thanks MVS.



jefe
Posts: 64
Joined: Sat Jan 15, 2011 9:37 pm
Year and Model: 2001 Volvo V40
Location: Oceanside, CA
Has thanked: 2 times
Been thanked: 3 times
United States of America
jefe

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by jefe » Thu Jun 21, 2018 10:29 am

After I changed my timing belt (and other things) and my volvo wouldn't start, one of the first things I did was test compression and I got low numbers as well. Something told me not to trust them completely. Since the car wasn't starting and just cranking, I thought maybe that wasn't the truest compression test.

Sure enough, once I figured out my issue and got it started, I rechecked compression and all cylinders were completely normal.



Boosted40
Posts: 16
Joined: Sun May 27, 2018 4:31 pm
Year and Model: 2002 S40
Location: Pennsylvania
Has thanked: 0
Been thanked: 0
United States of America
Boosted40

Re: 2001 v40 won't start after timing belt+cam nseal change

Post by Boosted40 » Thu Jun 21, 2018 11:55 am

Yeah, after the oil seeps down, you may get non optimal numbers. I might suggest squirting a small amount of oil on the walls around the piston and then waiting for a minute or two to see if the oil stays or if you have actual bad compression.



Post Reply