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Not starting after head gasket replacement

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
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SinusoidalTendencies
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SinusoidalTendencies

Not starting after head gasket replacement

Post by SinusoidalTendencies » Tue May 16, 2017 11:01 pm

So I just replaced my head gasket. Everything's put back together except whatever that one thing is ... starter is turning but not catching. What could it be?

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erikv11
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erikv11

Re: Not starting after head gasket replacement

Post by erikv11 » Tue May 16, 2017 11:43 pm

It comes down to checking fuel, spark and compression, but here are some common things overlooked:

Spark plug wires installed in correct cylinder sequence? That gets a lot of us, early on some manuals had the incorrect firing order.

Cam sensor, crank sensor - are both plugged in, is the little plate under the cam sensor installed correctly?

Is there adequate compression or is it spinning somewhat freely? If spinning, 1 teaspoon of oil in each cylinder.

Timing is good? Electrical connectors (the TPS is often missed for some reason)?
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

nikolajs
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nikolajs

Re: Not starting after head gasket replacement

Post by nikolajs » Wed May 17, 2017 12:29 am

Does it feel like its about to catch or not even close?

Might be a long shot but, how long did you have the lifters out? Were they soaking in oil? One of the head rebuilds I did i think the lifters somehow got saturated with oil and valves were basically stuck open. It finally started after about an hour of cranking...

SinusoidalTendencies
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SinusoidalTendencies

Re: Not starting after head gasket replacement

Post by SinusoidalTendencies » Wed May 17, 2017 1:50 am

Lifters aren't up to snuff. The majority of them wouldn't compress, even though they went straight into oil(there's was excessive clicking though before I started this). I was informed this wouldn't keep it from starting it running. Just that I would need to replace them asap. Spark plugs worked when I started this to. It ran fine actually except for the coolant building pressure until overflow/ exploding from the weakest link .it's late so I'll probably check everything again in the morning. But I checked/plugged in my relays. Battery is fine. Going to check wire connection again in the morning too. It's definitely turning(starter is making that turning the flexplate noise).

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SinusoidalTendencies

Re: Not starting after head gasket replacement

Post by SinusoidalTendencies » Wed May 17, 2017 1:54 am

I posted earlier about the cam and distributor rotor mounting and was told they only go in one way. Does the distributor go in different ways. Could I have hooked it up to the timing coil without a proper Connection?
Last edited by SinusoidalTendencies on Wed May 17, 2017 2:18 am, edited 1 time in total.

SinusoidalTendencies
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SinusoidalTendencies

Re: Not starting after head gasket replacement

Post by SinusoidalTendencies » Wed May 17, 2017 1:55 am

97 850 glt by the way

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rspi
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rspi

Re: Not starting after head gasket replacement

Post by rspi » Wed May 17, 2017 3:49 am

It only goes on one way, did you check the 4 (5) things necessary to start/run?

'95 855 T-5R M, Panther - 22/28 mpg
'98 S70 GLT, Lil' Red 25/32 mpg
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tryingbe
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Re: Not starting after head gasket replacement

Post by tryingbe » Wed May 17, 2017 4:56 am

Run compression test.
Run fuel pressure test.
Do spark test.
85 GLH, 367 whp
00 Insight, 72 mpg

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erikv11

Re: Not starting after head gasket replacement

Post by erikv11 » Wed May 17, 2017 9:26 am

SinusoidalTendencies wrote:
Wed May 17, 2017 1:54 am
I posted earlier about the cam and distributor rotor mounting and was told they only go in one way. Does the distributor go in different ways. Could I have hooked it up to the timing coil without a proper Connection?
You were given bad advice. Sure, they only go in one way *correctly*. But either one of them can be put them in the wrong way, they will be cockeyed and offset from the position they are supposed to be in but they can definitely go in the wrong way.

Definitely check the order of the spark plug wires, that's a simple first thing to look at and cross off the list. But as stated it comes down to fuel, spark and compression (and timing).
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

SinusoidalTendencies
Posts: 17
Joined: Sat Nov 19, 2016 12:19 pm
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Location: Phoenix, AZ
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SinusoidalTendencies

Re: Not starting after head gasket replacement

Post by SinusoidalTendencies » Wed May 17, 2017 10:37 am

I did pay attention to the orientation of the guide tabs on the rotors to make sure they lined up with the slots on the back of the cams. Once I realized the tabs where offset it was pretty rudimentary. I left the distributor and plug assembly assembled. So it's the way it was to begin with. Going through the check list.

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